feat(登录): 实现用户登录功能及相关模块

- 添加LoginController处理登录请求
- 实现UserLoginService登录逻辑，包括角色和权限验证
- 新增LoginRequest和LoginUser DTO
- 在UsersService中添加登录方法
- 添加RoleInitializer初始化系统角色
- 更新项目结构文档
- 临时禁用Spring Security配置

build.log

@@ -0,0 +1 @@
+[DEBUG] Shutting down 'noop' factory

doc/数据库表结构与关系文档.md

@@ -36,12 +36,16 @@
 | userId | BIGINT | 用户ID | 外键，关联users表 |
 | realName | VARCHAR | 真实姓名 | |
 | idCard | VARCHAR | 身份证号 | |
-| gender | INTEGER | 性别 | |
+| gender | VARCHAR | 性别 | 男、女、保密 |
 | birthday | DATE | 生日 | |
 | address | VARCHAR | 地址 | |
+| province | VARCHAR | 省份 | |
+| city | VARCHAR | 城市 | |
+| district | VARCHAR | 区县 | |
 | createdAt | DATE | 创建时间 | |
 | updatedAt | DATE | 更新时间 | |
 
+
 ## 权限相关表
 
 ### roles表
@@ -97,10 +101,18 @@
 | shopName | VARCHAR | 店铺名称 | |
 | userId | BIGINT | 店主用户ID | 外键，关联users表 |
 | categoryId | BIGINT | 店铺分类ID | 外键，关联shop_categories表 |
-| logo | VARCHAR | 店铺Logo | |
+| shopLogo | VARCHAR | 店铺Logo | |
 | coverImage | VARCHAR | 店铺封面图 | |
 | description | VARCHAR | 店铺描述 | |
-| status | INTEGER | 状态 | 0:待审核, 1:正常, 2:封禁 |
+| address | VARCHAR | 店铺地址 | |
+| contactPhone | VARCHAR | 联系电话 | |
+| contactPerson | VARCHAR | 联系人 | |
+| rating | DECIMAL | 店铺评分 | |
+| salesVolume | INTEGER | 销量 | |
+| status | INTEGER | 状态 | 0: 未审核, 1: 已审核, 2: 已关闭, 3: 审核失败 |
+| businessLicense | VARCHAR | 营业执照 | |
+| businessStartTime | DATE | 营业时间开始 | |
+| businessEndTime | DATE | 营业时间结束 | |
 | createdAt | DATE | 创建时间 | |
 | updatedAt | DATE | 更新时间 | |
 
@@ -110,8 +122,9 @@
 | :--- | :--- | :--- | :--- |
 | id | BIGINT | 分类ID | 主键，自增 |
 | categoryName | VARCHAR | 分类名称 | |
-| parentId | BIGINT | 父分类ID | |
+| parentId | BIGINT | 父分类ID | 顶级分类为0 |
 | level | INTEGER | 分类级别 | |
+| icon | VARCHAR | 分类图标 | |
 | sort | INTEGER | 排序 | |
 | status | INTEGER | 状态 | 0:禁用, 1:启用 |
 | createdAt | DATE | 创建时间 | |
@@ -127,14 +140,13 @@
 | productName | VARCHAR | 商品名称 | |
 | shopId | BIGINT | 店铺ID | 外键，关联shops表 |
 | categoryId | BIGINT | 商品分类ID | 外键，关联product_categories表 |
-| brand | VARCHAR | 品牌 | |
 | description | VARCHAR | 商品描述 | |
 | mainImage | VARCHAR | 主图URL | |
-| price | DECIMAL | 价格 | |
 | originalPrice | DECIMAL | 原价 | |
-| stock | INTEGER | 库存 | |
+| currentPrice | DECIMAL | 当前价格 | |
-| sales | INTEGER | 销量 | |
+| salesVolume | INTEGER | 销量 | |
 | status | INTEGER | 状态 | 0:下架, 1:上架 |
+| isDeleted | INTEGER | 是否删除 | 0: 未删除, 1: 已删除 |
 | createdAt | DATE | 创建时间 | |
 | updatedAt | DATE | 更新时间 | |
 
@@ -144,8 +156,10 @@
 | :--- | :--- | :--- | :--- |
 | id | BIGINT | 分类ID | 主键，自增 |
 | categoryName | VARCHAR | 分类名称 | |
-| parentId | BIGINT | 父分类ID | |
+| parentId | BIGINT | 父分类ID | 顶级分类为0 |
-| level | INTEGER | 分类级别 | |
+| level | INTEGER | 分类级别 | 1、2、3 |
+| icon | VARCHAR | 分类图标 | |
+| banner | VARCHAR | 分类横幅 | |
 | sort | INTEGER | 排序 | |
 | status | INTEGER | 状态 | 0:禁用, 1:启用 |
 | createdAt | DATE | 创建时间 | |
@@ -158,9 +172,8 @@
 | id | BIGINT | 属性ID | 主键，自增 |
 | attributeName | VARCHAR | 属性名称 | |
 | categoryId | BIGINT | 分类ID | 外键，关联product_categories表 |
-| attributeType | INTEGER | 属性类型 | 0:普通属性, 1:规格属性 |
+| attributeType | INTEGER | 属性类型 | 0: 规格属性, 1: 销售属性 |
 | sort | INTEGER | 排序 | |
-| status | INTEGER | 状态 | 0:禁用, 1:启用 |
 | createdAt | DATE | 创建时间 | |
 | updatedAt | DATE | 更新时间 | |
 

doc/项目结构.md

@@ -0,0 +1,81 @@
+e:\TaoTaoWang\backend\
+├── pom.xml                               # Maven依赖配置
+├── src/main/java/com/taotaowang/
+│   ├── TaotaoWangApplication.java        # 应用主启动类
+│   ├── config/                           # 配置类
+│   │   ├── SecurityConfig.java           # 安全配置
+│   │   ├── MyBatisPlusConfig.java        # MyBatis-Plus配置
+│   │   ├── RedisConfig.java              # Redis配置
+│   │   ├── SwaggerConfig.java            # Swagger文档配置
+│   │   └── WebConfig.java                # Web配置
+│   ├── controller/                       # 控制器层
+│   │   ├── AuthController.java           # 认证相关接口
+│   │   ├── UserController.java           # 用户管理接口
+│   │   ├── RoleController.java           # 角色管理接口
+│   │   ├── PermissionController.java     # 权限管理接口
+│   │   ├── ProductController.java        # 商品管理接口
+│   │   ├── OrderController.java          # 订单管理接口
+│   │   ├── ShopController.java           # 店铺管理接口
+│   │   └── MarketingController.java      # 营销活动接口
+│   ├── service/                          # 业务层
+│   │   ├── impl/                         # 业务实现类
+│   │   │   ├── AuthServiceImpl.java
+│   │   │   ├── UserServiceImpl.java
+│   │   │   ├── RoleServiceImpl.java
+│   │   │   ├── PermissionServiceImpl.java
+│   │   │   ├── ProductServiceImpl.java
+│   │   │   ├── OrderServiceImpl.java
+│   │   │   ├── ShopServiceImpl.java
+│   │   │   └── MarketingServiceImpl.java
+│   │   ├── AuthService.java              # 认证服务接口
+│   │   ├── UserService.java              # 用户服务接口
+│   │   ├── RoleService.java              # 角色服务接口
+│   │   ├── PermissionService.java        # 权限服务接口
+│   │   ├── ProductService.java           # 商品服务接口
+│   │   ├── OrderService.java             # 订单服务接口
+│   │   ├── ShopService.java              # 店铺服务接口
+│   │   └── MarketingService.java         # 营销服务接口
+│   ├── mapper/                           # 数据访问层
+│   │   ├── UserMapper.java
+│   │   ├── RoleMapper.java
+│   │   ├── PermissionMapper.java
+│   │   ├── ProductMapper.java
+│   │   ├── OrderMapper.java
+│   │   └── ShopMapper.java
+│   ├── entity/                           # 实体层
+│   │   ├── User.java
+│   │   ├── Role.java
+│   │   ├── Permission.java
+│   │   ├── Product.java
+│   │   ├── Order.java
+│   │   ├── Shop.java
+│   │   └── Marketing.java
+│   ├── dto/                              # 数据传输对象
+│   │   ├── request/                      # 请求DTO
+│   │   │   ├── LoginRequest.java
+│   │   │   ├── RegisterRequest.java
+│   │   │   ├── ProductRequest.java
+│   │   │   └── OrderRequest.java
+│   │   └── response/                     # 响应DTO
+│   │       ├── LoginResponse.java
+│   │       ├── UserResponse.java
+│   │       ├── ProductResponse.java
+│   │       └── OrderResponse.java
+│   ├── exception/                        # 异常处理
+│   │   ├── GlobalExceptionHandler.java   # 全局异常处理器
+│   │   ├── BusinessException.java        # 业务异常
+│   │   └── ErrorCode.java                # 错误码定义
+│   ├── util/                             # 工具类
+│   │   ├── JwtUtil.java                  # JWT工具
+│   │   ├── SecurityUtil.java             # 安全工具
+│   │   └── ResponseUtil.java             # 响应工具
+│   └── interceptor/                      # 拦截器
+│       ├── JwtInterceptor.java           # JWT拦截器
+│       └── LogInterceptor.java           # 日志拦截器
+└── src/main/resources/
+    ├── application.yml                   # 主配置文件
+    ├── application-dev.yml               # 开发环境配置
+    ├── application-test.yml              # 测试环境配置
+    ├── application-prod.yml              # 生产环境配置
+    ├── mapper/                           # MyBatis映射文件
+    └── static/                           # 静态资源目录

pom.xml

@@ -125,7 +125,6 @@
         <dependency>
             <groupId>org.projectlombok</groupId>
             <artifactId>lombok</artifactId>
-            <optional>true</optional>
         </dependency>
         
         <!-- Fastjson JSON处理 -->
@@ -181,6 +180,23 @@
                 <groupId>org.springframework.boot</groupId>
                 <artifactId>spring-boot-maven-plugin</artifactId>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <version>3.14.1</version>
+                <configuration>
+                    <source>${java.version}</source>
+                    <target>${java.version}</target>
+                    <encoding>UTF-8</encoding>
+                    <annotationProcessorPaths>
+                        <path>
+                            <groupId>org.projectlombok</groupId>
+                            <artifactId>lombok</artifactId>
+                            <version>1.18.42</version>
+                        </path>
+                    </annotationProcessorPaths>
+                </configuration>
+            </plugin>
         </plugins>
     </build>
 

src/main/java/com/qf/backend/config/RoleInitializer.java

@@ -0,0 +1,63 @@
+package com.qf.backend.config;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.qf.backend.entity.Roles;
+import com.qf.backend.service.RolesService;
+
+import jakarta.annotation.PostConstruct;
+
+/**
+ * 角色初始化配置类，用于在系统启动时创建内置角色
+ * @author 30803
+ */
+@Component
+public class RoleInitializer {
+    private static final Logger logger = LoggerFactory.getLogger(RoleInitializer.class);
+    
+    @Autowired
+    private RolesService rolesService;
+    
+    /**
+     * 系统启动时初始化内置角色
+     */
+    @PostConstruct
+    public void initRoles() {
+        logger.info("开始初始化内置角色...");
+        
+        // 定义内置角色信息
+        String[][] roleInfos = {
+            {"用户", "默认用户角色", "0"},  // roleType: 0-默认用户
+            {"店主", "店铺管理员角色", "1"},  // roleType: 1-店主
+            {"管理员", "系统管理员角色", "2"}   // roleType: 2-管理员
+        };
+        
+        for (String[] roleInfo : roleInfos) {
+            String roleName = roleInfo[0];
+            String description = roleInfo[1];
+            Integer roleType = Integer.parseInt(roleInfo[2]);
+            
+            // 检查角色是否已存在
+            Roles existingRole = rolesService.getOne(new QueryWrapper<Roles>().eq("role_name", roleName));
+            if (existingRole == null) {
+                // 创建新角色
+                Roles role = new Roles();
+                role.setRoleName(roleName);
+                role.setDescription(description);
+                role.setRoleType(roleType);
+                role.setStatus(1); // 启用状态
+                
+                rolesService.save(role);
+                logger.info("成功创建内置角色: {}", roleName);
+            } else {
+                logger.info("内置角色 {} 已存在，跳过创建", roleName);
+            }
+        }
+        
+        logger.info("内置角色初始化完成");
+    }
+}

src/main/java/com/qf/backend/config/SecurityConfig.java

@@ -0,0 +1,57 @@
+// /*
+//  * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+//  * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+//  */
+// package com.qf.backend.config;
+
+// import org.springframework.context.annotation.Bean;
+// import org.springframework.context.annotation.Configuration;
+// import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+// import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
+// import org.springframework.security.provisioning.InMemoryUserDetailsManager;
+// import org.springframework.security.web.SecurityFilterChain;
+
+// /**
+//  * 安全配置类（仅开发 禁用安全认证）
+//  *
+//  * @author 30803
+//  */
+// @Configuration
+// @EnableWebSecurity
+// public class SecurityConfig {
+
+//     @Bean
+//     public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
+//         http
+//                 .authorizeHttpRequests(auth -> auth
+//                 .requestMatchers("/users/**").permitAll() // 公开路径
+//                 .requestMatchers("/admin/**").hasRole("ADMIN") // 需要 ADMIN 角色
+//                 .anyRequest().authenticated() // 其他请求需登录
+//                 )
+//                 .formLogin(form -> form
+//                 .loginPage("/login") // 自定义登录页（可选）
+//                 .permitAll()
+//                 )
+//                 .logout(logout -> logout
+//                 .permitAll()
+//                 );
+//         return http.build();
+//     }
+
+//     @Bean
+//     public UserDetailsService userDetailsService() {
+//         UserDetails user = User.withDefaultPasswordEncoder()
+//                 .username("user")
+//                 .password("123456")
+//                 .roles("USER")
+//                 .build();
+
+//         UserDetails admin = User.withDefaultPasswordEncoder()
+//                 .username("admin")
+//                 .password("admin123")
+//                 .roles("USER", "ADMIN")
+//                 .build();
+
+//         return new InMemoryUserDetailsManager(user, admin);
+//     }
+// }

src/main/java/com/qf/backend/config/UsersDetailsServiceConfig.java

@@ -0,0 +1,43 @@
+// /*
+//  * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+//  * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+//  */
+
+// package com.qf.backend.config;
+
+// import org.springframework.beans.factory.annotation.Autowired;
+// import org.springframework.security.core.userdetails.UserDetailsService;
+// import org.springframework.stereotype.Component;
+// import org.springframework.stereotype.Service;
+// import org.springframework.security.core.userdetails.UserDetails;
+// import org.springframework.security.core.userdetails.UsernameNotFoundException;
+// import org.springframework.security.core.authority.AuthorityUtils;
+// import com.qf.backend.mapper.UsersMapper;
+// import com.qf.backend.entity.Users;
+// import com.qf.backend.mapper.RolesMapper;
+
+
+
+// /**
+//  * 自定义UserDetailsService
+//  * 用于从数据库加载用户信息进行认证
+//  * @author 30803
+//  */
+// @Component
+// public class UsersDetailsServiceConfig implements UserDetailsService {
+//     @Autowired
+//     private UsersMapper usersMapper;
+//     @Autowired
+//     private RolesMapper rolesMapper;
+
+    
+//     @Override
+//     public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
+//         Users users = usersMapper.selectByUsername(username);
+//         if (users == null) {
+//             throw new UsernameNotFoundException("用户不存在"+username);
+//         }
+//         int roleType = rolesMapper.selectById(users.getId()).getRoleType();
+//     }
+
+// }

src/main/java/com/qf/backend/controller/LoginController.java

@@ -0,0 +1,33 @@
+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+
+package com.qf.backend.controller;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import com.qf.backend.common.Result;
+import com.qf.backend.dto.LoginRequest;
+import com.qf.backend.dto.LoginUser;
+import com.qf.backend.service.UserLoginService;
+/**
+ *
+ * @author 30803
+ */
+@RestController
+@RequestMapping("/api/login")
+public class LoginController {
+    @Autowired
+    private UserLoginService userLoginService;
+    
+    @PostMapping("/login")
+    public Result<LoginUser> login(@RequestBody LoginRequest loginRequest) {
+        return userLoginService.login(loginRequest.getUsername(), loginRequest.getPassword());
+    }
+
+}

src/main/java/com/qf/backend/controller/UsersController.java

@@ -0,0 +1,39 @@
+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+
+package com.qf.backend.controller;
+
+import java.util.List;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.DeleteMapping;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import com.qf.backend.common.Result;
+import com.qf.backend.entity.Users;
+import com.qf.backend.service.UsersService;
+
+/**
+ *
+ * @author 30803
+ */
+@RestController
+@RequestMapping("/api/users")
+public class UsersController {
+    @Autowired
+    private UsersService usersService;
+    
+    @GetMapping("/list")
+    public Result<List<Users>> listAllUsers() {
+        return usersService.listAllUsers();
+    }
+    @DeleteMapping("/delete/{id}")
+    public Result<Boolean> deleteUser(Long id) {
+        System.out.println(id);
+        return usersService.deleteUser(id);
+    }
+}

src/main/java/com/qf/backend/dto/LoginRequest.java

@@ -0,0 +1,24 @@
+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+
+package com.qf.backend.dto;
+
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+
+
+
+/**
+ * 登录请求参数
+ * @author 30803
+ */
+@Data
+@AllArgsConstructor
+@NoArgsConstructor
+public class LoginRequest {
+    private String username;
+    private String password;
+}

src/main/java/com/qf/backend/dto/LoginUser.java

@@ -0,0 +1,32 @@
+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+
+package com.qf.backend.dto;
+import java.util.List;
+
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Data;
+import lombok.NoArgsConstructor;
+/**
+ * 登录用户DTO(登录时使用)
+ * @param id 用户ID
+ * @param username 用户名
+ * @param password 密码
+ * @param roles 角色列表
+ * @param permissions 权限列表
+ * @author 30803
+ */
+@Data
+@Builder
+@NoArgsConstructor
+@AllArgsConstructor
+public class LoginUser {
+    private Long id;
+    private String username;
+    private String password;
+    private List<String> roles;
+    private List<String> permissions;
+}

src/main/java/com/qf/backend/entity/OrderItems.java

@@ -7,30 +7,34 @@ import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 
+import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
+import lombok.NoArgsConstructor;
 
 /**
  * 订单商品项表
  */
-@Data
+@Data                       // 自动生成getter、setter、toString、equals、hashCode方法
-@Builder
+@Builder                    // 自动生成builder模式的构造器
+@NoArgsConstructor          // 自动生成无参构造器
+@AllArgsConstructor         // 自动生成全参构造器
 @TableName("order_items")
 public class OrderItems {
     
     @TableId(type = IdType.AUTO)
-    private Long id;
+    private Long id; // 订单项ID，主键，自增
     
-    private Long orderId;
+    private Long orderId; // 订单ID，外键，关联orders表
-    private Long productId;
+    private Long productId; // 商品ID，外键，关联products表
-    private Long skuId;
+    private Long skuId; // SKU ID，外键，关联product_skus表
-    private String productName;
+    private String productName; // 商品名称
-    private String skuSpecs;
+    private String skuSpecs; // SKU规格
-    private String productImage;
+    private String productImage; // 商品图片
-    private BigDecimal price;
+    private BigDecimal price; // 价格
-    private Integer quantity;
+    private Integer quantity; // 数量
-    private BigDecimal subtotal;
+    private BigDecimal subtotal; // 小计
-    private Integer itemStatus; // 0: 正常, 1: 已退款, 2: 退款中
+    private Integer itemStatus; // 商品状态：0:正常, 1:已退款, 2:退款中
-    private Date createdAt;
+    private Date createdAt; // 创建时间
-    private Date updatedAt;
+    private Date updatedAt; // 更新时间
 }

src/main/java/com/qf/backend/entity/OrderStatusHistory.java

@@ -6,25 +6,29 @@ import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 
+import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
+import lombok.NoArgsConstructor;
 
 /**
  * 订单状态历史表
  */
-@Data
+@Data                       // 自动生成getter、setter、toString、equals、hashCode方法
-@Builder
+@Builder                    // 自动生成builder模式的构造器
+@NoArgsConstructor          // 自动生成无参构造器
+@AllArgsConstructor         // 自动生成全参构造器
 @TableName("order_status_history")
 public class OrderStatusHistory {
     
     @TableId(type = IdType.AUTO)
-    private Long id;
+    private Long id; // 历史ID，主键，自增
     
-    private Long orderId;
+    private Long orderId; // 订单ID，外键，关联orders表
-    private Integer previousStatus;
+    private Integer previousStatus; // 之前状态
-    private Integer currentStatus;
+    private Integer currentStatus; // 当前状态
-    private String changeReason;
+    private String changeReason; // 变更原因
-    private String operator;
+    private String operator; // 操作人
-    private Date changeTime;
+    private Date changeTime; // 变更时间
-    private Date createdAt;
+    private Date createdAt; // 创建时间
 }

src/main/java/com/qf/backend/entity/Orders.java

@@ -7,36 +7,40 @@ import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 
+import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
+import lombok.NoArgsConstructor;
 
 /**
  * 订单主表
  */
-@Data
+@Data                       // 自动生成getter、setter、toString、equals、hashCode方法
-@Builder
+@Builder                    // 自动生成builder模式的构造器
+@NoArgsConstructor          // 自动生成无参构造器
+@AllArgsConstructor         // 自动生成全参构造器
 @TableName("orders")
 public class Orders {
     
     @TableId(type = IdType.AUTO)
-    private Long id;
+    private Long id; // 订单ID，主键，自增
     
-    private String orderNo;
+    private String orderNo; // 订单号
-    private Long userId;
+    private Long userId; // 用户ID，外键，关联users表
-    private Long shopId;
+    private Long shopId; // 店铺ID，外键，关联shops表
-    private BigDecimal totalAmount;
+    private BigDecimal totalAmount; // 总金额
-    private BigDecimal actualAmount;
+    private BigDecimal actualAmount; // 实际支付金额
-    private BigDecimal shippingFee;
+    private BigDecimal shippingFee; // 运费
-    private Integer orderStatus; // 0: 待付款, 1: 待发货, 2: 待收货, 3: 已完成, 4: 已取消, 5: 已退款
+    private Integer orderStatus; // 订单状态：0:待付款, 1:待发货, 2:待收货, 3:已完成, 4:已取消, 5:已退款
-    private String shippingAddress;
+    private String shippingAddress; // 收货地址
-    private String receiverName;
+    private String receiverName; // 收件人姓名
-    private String receiverPhone;
+    private String receiverPhone; // 收件人电话
     private String paymentMethod; // 支付方式
-    private Date paymentTime;
+    private Date paymentTime; // 支付时间
-    private Date shippingTime;
+    private Date shippingTime; // 发货时间
-    private Date deliveryTime;
+    private Date deliveryTime; // 送达时间
-    private Date completeTime;
+    private Date completeTime; // 完成时间
-    private String remark;
+    private String remark; // 备注
-    private Date createdAt;
+    private Date createdAt; // 创建时间
-    private Date updatedAt;
+    private Date updatedAt; // 更新时间
 }

src/main/java/com/qf/backend/entity/Payments.java

@@ -7,30 +7,34 @@ import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 
+import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
+import lombok.NoArgsConstructor;
 
 /**
  * 支付信息表
  */
-@Data
+@Data                       // 自动生成getter、setter、toString、equals、hashCode方法
-@Builder
+@Builder                    // 自动生成builder模式的构造器
+@NoArgsConstructor          // 自动生成无参构造器
+@AllArgsConstructor         // 自动生成全参构造器
 @TableName("payments")
 public class Payments {
     
     @TableId(type = IdType.AUTO)
-    private Long id;
+    private Long id; // 支付ID，主键，自增
     
-    private String paymentNo;
+    private String paymentNo; // 支付单号
-    private Long orderId;
+    private Long orderId; // 订单ID，外键，关联orders表
-    private Long userId;
+    private Long userId; // 用户ID，外键，关联users表
-    private BigDecimal amount;
+    private BigDecimal amount; // 支付金额
     private String paymentMethod; // 支付方式
     private String transactionId; // 第三方交易流水号
-    private Integer paymentStatus; // 0: 待支付, 1: 支付成功, 2: 支付失败, 3: 已退款
+    private Integer paymentStatus; // 支付状态：0:待支付, 1:支付成功, 2:支付失败, 3:已退款
     private String paymentUrl; // 支付链接
-    private Date expireTime;
+    private Date expireTime; // 过期时间
-    private Date paymentTime;
+    private Date paymentTime; // 支付时间
-    private Date createdAt;
+    private Date createdAt; // 创建时间
-    private Date updatedAt;
+    private Date updatedAt; // 更新时间
 }

src/main/java/com/qf/backend/entity/Permissions.java

@@ -6,25 +6,29 @@ import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 
+import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
+import lombok.NoArgsConstructor;
 
 /**
  * 权限信息表
  */
-@Data
+@Data                       // 自动生成getter、setter、toString、equals、hashCode方法
-@Builder
+@Builder                    // 自动生成builder模式的构造器
+@NoArgsConstructor          // 自动生成无参构造器
+@AllArgsConstructor         // 自动生成全参构造器
 @TableName("permissions")
 public class Permissions {
     
     @TableId(type = IdType.AUTO)
-    private Long id;
+    private Long id; // 权限ID，主键，自增
     
-    private String permissionName;
+    private String permissionName; // 权限名称
-    private String permissionCode;
+    private String permissionCode; // 权限编码
-    private String description;
+    private String description; // 权限描述
-    private String module;
+    private String module; // 所属模块
-    private Integer status; // 0: 禁用, 1: 启用
+    private Integer status; // 状态：0:禁用, 1:启用
-    private Date createdAt;
+    private Date createdAt; // 创建时间
-    private Date updatedAt;
+    private Date updatedAt; // 更新时间
 }

src/main/java/com/qf/backend/entity/ProductAttributeValues.java

@@ -6,25 +6,28 @@ import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 
+import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
+import lombok.NoArgsConstructor;
 
 /**
  * 商品属性值表
  */
-@Data
+@Data                       // 自动生成getter、setter、toString、equals、hashCode方法
-
+@Builder                    // 自动生成builder模式的构造器
-@Builder
+@NoArgsConstructor          // 自动生成无参构造器
+@AllArgsConstructor         // 自动生成全参构造器
 @TableName("product_attribute_values")
 public class ProductAttributeValues {
     
     @TableId(type = IdType.AUTO)
-    private Long id;
+    private Long id; // 属性值ID，主键，自增
     
-    private Long productId;
+    private Long productId; // 商品ID，外键，关联products表
-    private Long attributeId;
+    private Long attributeId; // 属性ID，外键，关联product_attributes表
-    private String attributeValue;
+    private String attributeValue; // 属性值
-    private Integer sort;
+    private Integer sort; // 排序
-    private Date createdAt;
+    private Date createdAt; // 创建时间
-    private Date updatedAt;
+    private Date updatedAt; // 更新时间
 }

src/main/java/com/qf/backend/entity/ProductAttributes.java

@@ -6,24 +6,28 @@ import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 
+import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
+import lombok.NoArgsConstructor;
 
 /**
  * 商品属性表
  */
-@Data
+@Data                       // 自动生成getter、setter、toString、equals、hashCode方法
-@Builder
+@Builder                    // 自动生成builder模式的构造器
+@NoArgsConstructor          // 自动生成无参构造器
+@AllArgsConstructor         // 自动生成全参构造器
 @TableName("product_attributes")
 public class ProductAttributes {
     
     @TableId(type = IdType.AUTO)
-    private Long id;
+    private Long id; // 属性ID，主键，自增
     
-    private String attributeName;
+    private String attributeName; // 属性名称
-    private Long categoryId;
+    private Long categoryId; // 分类ID，外键，关联product_categories表
-    private Integer attributeType; // 0: 规格属性, 1: 销售属性
+    private Integer attributeType; // 属性类型：0: 规格属性, 1: 销售属性
-    private Integer sort;
+    private Integer sort; // 排序
-    private Date createdAt;
+    private Date createdAt; // 创建时间
-    private Date updatedAt;
+    private Date updatedAt; // 更新时间
 }

src/main/java/com/qf/backend/entity/ProductCategories.java

@@ -1,32 +1,40 @@
 package com.qf.backend.entity;
 
+import java.util.Date;
+import java.util.List;
+
 import com.baomidou.mybatisplus.annotation.IdType;
+import com.baomidou.mybatisplus.annotation.TableField;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 
+import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
-import java.util.Date;
+import lombok.NoArgsConstructor;
-
 /**
  * 商品分类表
  */
 @Data
-
 @Builder
+@AllArgsConstructor
+@NoArgsConstructor
 @TableName("product_categories")
 public class ProductCategories {
     
     @TableId(type = IdType.AUTO)
-    private Long id;
+    private Long id; // 分类ID，主键，自增
     
-    private String categoryName;
+    private String categoryName; // 分类名称
     private Long parentId; // 父分类ID，顶级分类为0
     private Integer level; // 分类级别：1、2、3
-    private String icon;
+    private String icon; // 分类图标
-    private String banner;
+    private String banner; // 分类横幅
-    private Integer sort;
+    private Integer sort; // 排序
-    private Integer status; // 0: 禁用, 1: 启用
+    private Integer status; // 状态：0:禁用, 1:启用
-    private Date createdAt;
+    private Date createdAt; // 创建时间
-    private Date updatedAt;
+    private Date updatedAt; // 更新时间
+    
+    @TableField(exist = false) // 非数据库字段，用于构建树形结构
+    private List<ProductCategories> children; // 子分类列表
 }

src/main/java/com/qf/backend/entity/ProductImages.java

@@ -4,25 +4,29 @@ import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 
+import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
+import lombok.NoArgsConstructor;
+
 import java.util.Date;
 
 /**
  * 商品图片表
  */
-@Data
+@Data                       // 自动生成getter、setter、toString、equals、hashCode方法
-
+@Builder                    // 自动生成builder模式的构造器
-@Builder
+@NoArgsConstructor          // 自动生成无参构造器
+@AllArgsConstructor         // 自动生成全参构造器
 @TableName("product_images")
 public class ProductImages {
     
     @TableId(type = IdType.AUTO)
-    private Long id;
+    private Long id; // 图片ID，主键，自增
     
-    private Long productId;
+    private Long productId; // 商品ID，外键，关联products表
-    private String imageUrl;
+    private String imageUrl; // 图片URL
-    private Integer sort;
+    private Integer sort; // 排序
-    private Integer isMain; // 0: 非主图, 1: 主图
+    private Integer isMain; // 是否主图：0:非主图, 1:主图
-    private Date createdAt;
+    private Date createdAt; // 创建时间
 }

src/main/java/com/qf/backend/entity/ProductInventories.java

@@ -6,26 +6,29 @@ import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 
+import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
+import lombok.NoArgsConstructor;
 
 /**
  * 库存信息表
  */
-@Data
+@Data                       // 自动生成getter、setter、toString、equals、hashCode方法
-
+@Builder                    // 自动生成builder模式的构造器
-@Builder
+@NoArgsConstructor          // 自动生成无参构造器
+@AllArgsConstructor         // 自动生成全参构造器
 @TableName("product_inventories")
 public class ProductInventories {
     
     @TableId(type = IdType.AUTO)
-    private Long id;
+    private Long id; // 库存ID，主键，自增
     
-    private Long skuId;
+    private Long skuId; // SKU ID，外键，关联product_skus表
-    private Integer currentStock;
+    private Integer currentStock; // 当前库存
-    private Integer safetyStock;
+    private Integer safetyStock; // 安全库存
     private Integer lockStock; // 锁定库存
-    private Date lastUpdateTime;
+    private Date lastUpdateTime; // 最后更新时间
-    private Date createdAt;
+    private Date createdAt; // 创建时间
-    private Date updatedAt;
+    private Date updatedAt; // 更新时间
 }

src/main/java/com/qf/backend/entity/ProductSkus.java

@@ -7,28 +7,31 @@ import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 
+import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
+import lombok.NoArgsConstructor;
 
 /**
  * 商品SKU表
  */
-@Data
+@Data                       // 自动生成getter、setter、toString、equals、hashCode方法
-
+@Builder                    // 自动生成builder模式的构造器
-@Builder
+@NoArgsConstructor          // 自动生成无参构造器
+@AllArgsConstructor         // 自动生成全参构造器
 @TableName("product_skus")
 public class ProductSkus {
     
     @TableId(type = IdType.AUTO)
-    private Long id;
+    private Long id; // SKU ID，主键，自增
     
-    private Long productId;
+    private Long productId; // 商品ID，外键，关联products表
-    private String skuCode;
+    private String skuCode; // SKU编码
     private String skuSpecs; // SKU规格信息，JSON格式存储
-    private BigDecimal price;
+    private BigDecimal price; // 价格
-    private Integer stock;
+    private Integer stock; // 库存
-    private String image;
+    private String image; // 图片
-    private Integer status; // 0: 禁用, 1: 启用
+    private Integer status; // 状态：0:禁用, 1:启用
-    private Date createdAt;
+    private Date createdAt; // 创建时间
-    private Date updatedAt;
+    private Date updatedAt; // 更新时间
 }

src/main/java/com/qf/backend/entity/Products.java

@@ -7,31 +7,34 @@ import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 
+import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
+import lombok.NoArgsConstructor;
 
 /**
  * 商品基本信息表
  */
-@Data
+@Data                       // 自动生成getter、setter、toString、equals、hashCode方法
-
+@Builder                    // 自动生成builder模式的构造器
-@Builder
+@NoArgsConstructor          // 自动生成无参构造器
+@AllArgsConstructor         // 自动生成全参构造器
 @TableName("products")
 public class Products {
     
     @TableId(type = IdType.AUTO)
-    private Long id;
+    private Long id; // 商品ID，主键，自增
     
-    private String productName;
+    private String productName; // 商品名称
-    private Long shopId;
+    private Long shopId; // 店铺ID，外键，关联shops表
-    private Long categoryId;
+    private Long categoryId; // 商品分类ID，外键，关联product_categories表
-    private String description;
+    private String description; // 商品描述
-    private BigDecimal originalPrice;
+    private BigDecimal originalPrice; // 原价 不能为空
-    private BigDecimal currentPrice;
+    private BigDecimal currentPrice; // 当前价格 为空时表示原价 ，否则表示折扣价
-    private Integer salesVolume;
+    private Integer salesVolume; // 销量
-    private Integer status; // 0: 下架, 1: 上架
+    private Integer status; // 状态：0:下架, 1:上架
-    private String mainImage;
+    private String mainImage; // 主图URL
-    private Integer isDeleted; // 0: 未删除, 1: 已删除
+    private Integer isDeleted; // 是否删除：0: 未删除, 1: 已删除
-    private Date createdAt;
+    private Date createdAt; // 创建时间
-    private Date updatedAt;
+    private Date updatedAt; // 更新时间
 }

src/main/java/com/qf/backend/entity/Refunds.java

@@ -7,35 +7,38 @@ import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 
+import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
+import lombok.NoArgsConstructor;
 
 /**
  * 退款信息表
  */
-@Data
+@Data                       // 自动生成getter、setter、toString、equals、hashCode方法
-
+@Builder                    // 自动生成builder模式的构造器
-@Builder
+@NoArgsConstructor          // 自动生成无参构造器
+@AllArgsConstructor         // 自动生成全参构造器
 @TableName("refunds")
 public class Refunds {
     
     @TableId(type = IdType.AUTO)
-    private Long id;
+    private Long id; // 退款ID，主键，自增
     
-    private String refundNo;
+    private String refundNo; // 退款单号
-    private Long orderId;
+    private Long orderId; // 订单ID，外键，关联orders表
-    private Long orderItemId;
+    private Long orderItemId; // 订单项ID，外键，关联order_items表
-    private Long userId;
+    private Long userId; // 用户ID，外键，关联users表
-    private Long shopId;
+    private Long shopId; // 店铺ID，外键，关联shops表
-    private BigDecimal refundAmount;
+    private BigDecimal refundAmount; // 退款金额
-    private String refundReason;
+    private String refundReason; // 退款原因
     private String refundType; // 退款类型
-    private Integer refundStatus; // 0: 申请中, 1: 退款成功, 2: 退款失败, 3: 已拒绝
+    private Integer refundStatus; // 退款状态：0:申请中, 1:退款成功, 2:退款失败, 3:已拒绝
-    private String refundAccount;
+    private String refundAccount; // 退款账户
-    private String transactionId;
+    private String transactionId; // 交易ID
-    private Date applyTime;
+    private Date applyTime; // 申请时间
-    private Date processTime;
+    private Date processTime; // 处理时间
-    private String processRemark;
+    private String processRemark; // 处理备注
-    private Date createdAt;
+    private Date createdAt; // 创建时间
-    private Date updatedAt;
+    private Date updatedAt; // 更新时间
 }

src/main/java/com/qf/backend/entity/RolePermissions.java

@@ -6,22 +6,25 @@ import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 
+import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
+import lombok.NoArgsConstructor;
 
 /**
  * 角色-权限关联表
  */
-@Data
+@Data                       // 自动生成getter、setter、toString、equals、hashCode方法
-
+@Builder                    // 自动生成builder模式的构造器
-@Builder
+@NoArgsConstructor          // 自动生成无参构造器
+@AllArgsConstructor         // 自动生成全参构造器
 @TableName("role_permissions")
 public class RolePermissions {
     
     @TableId(type = IdType.AUTO)
-    private Long id;
+    private Long id; // 关联ID，主键，自增
     
-    private Long roleId;
+    private Long roleId; // 角色ID，外键，关联roles表
-    private Long permissionId;
+    private Long permissionId; // 权限ID，外键，关联permissions表
-    private Date createdAt;
+    private Date createdAt; // 创建时间
 }

src/main/java/com/qf/backend/entity/Roles.java

@@ -6,25 +6,28 @@ import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 
+import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
+import lombok.NoArgsConstructor;
 
 /**
  * 角色信息表
  */
-@Data
+@Data                       // 自动生成getter、setter、toString、equals、hashCode方法
-
+@Builder                    // 自动生成builder模式的构造器
-@Builder
+@NoArgsConstructor          // 自动生成无参构造器
+@AllArgsConstructor         // 自动生成全参构造器
 @TableName("roles")
 public class Roles {
     
     @TableId(type = IdType.AUTO)
-    private Long id;
+    private Long id; // 角色ID，主键，自增
     
-    private String roleName;
+    private String roleName; // 角色名称
-    private String description;
+    private String description; // 角色描述
-    private Integer roleType; // 0: 默认用户, 1: 店主, 2: 管理员
+    private Integer roleType; // 角色类型：0:默认用户,1:店主,2:管理员
-    private Integer status; // 0: 禁用, 1: 启用
+    private Integer status; // 状态：0:禁用, 1:启用
-    private Date createdAt;
+    private Date createdAt; // 创建时间
-    private Date updatedAt;
+    private Date updatedAt; // 更新时间
 }

src/main/java/com/qf/backend/entity/ShopCategories.java

@@ -6,27 +6,30 @@ import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 
+import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
+import lombok.NoArgsConstructor;
 
 /**
  * 店铺分类表
  */
-@Data
+@Data                       // 自动生成getter、setter、toString、equals、hashCode方法
-
+@Builder                    // 自动生成builder模式的构造器
-@Builder
+@NoArgsConstructor          // 自动生成无参构造器
+@AllArgsConstructor         // 自动生成全参构造器
 @TableName("shop_categories")
 public class ShopCategories {
     
     @TableId(type = IdType.AUTO)
-    private Long id;
+    private Long id; // 分类ID，主键，自增
     
-    private String categoryName;
+    private String categoryName; // 分类名称
     private Long parentId; // 父分类ID，顶级分类为0
     private Integer level; // 分类级别
-    private String icon;
+    private String icon; // 分类图标
-    private Integer sort;
+    private Integer sort; // 排序
-    private Integer status; // 0: 禁用, 1: 启用
+    private Integer status; // 状态：0:禁用, 1:启用
-    private Date createdAt;
+    private Date createdAt; // 创建时间
-    private Date updatedAt;
+    private Date updatedAt; // 更新时间
 }

src/main/java/com/qf/backend/entity/ShopRatings.java

@@ -6,28 +6,31 @@ import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 
+import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
+import lombok.NoArgsConstructor;
 
 /**
  * 店铺评分表
  */
-@Data
+@Data                       // 自动生成getter、setter、toString、equals、hashCode方法
-
+@Builder                    // 自动生成builder模式的构造器
-@Builder
+@NoArgsConstructor          // 自动生成无参构造器
+@AllArgsConstructor         // 自动生成全参构造器
 @TableName("shop_ratings")
 public class ShopRatings {
     
     @TableId(type = IdType.AUTO)
-    private Long id;
+    private Long id; // 评价ID，主键，自增
     
-    private Long shopId;
+    private Long shopId; // 店铺ID，外键，关联shops表
-    private Long userId;
+    private Long userId; // 用户ID，外键，关联users表
-    private Long orderId;
+    private Long orderId; // 订单ID，外键，关联orders表
     private Integer rating; // 评分：1-5星
-    private String content;
+    private String content; // 评价内容
     private String images; // 评价图片，JSON格式存储
-    private Integer status; // 0: 待审核, 1: 已审核, 2: 已删除
+    private Integer status; // 状态：0:待审核, 1:已审核, 2:已删除
-    private Date createdAt;
+    private Date createdAt; // 创建时间
-    private Date updatedAt;
+    private Date updatedAt; // 更新时间
 }

src/main/java/com/qf/backend/entity/Shops.java

@@ -7,35 +7,39 @@ import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 
+import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
+import lombok.NoArgsConstructor;
 
 /**
  * 店铺信息表
  */
-@Data
+@Data                       // 自动生成getter、setter、toString、equals、hashCode方法
-@Builder
+@Builder                    // 自动生成builder模式的构造器
+@NoArgsConstructor          // 自动生成无参构造器
+@AllArgsConstructor         // 自动生成全参构造器
 @TableName("shops")
 public class Shops {
     
     @TableId(type = IdType.AUTO)
-    private Long id;
+    private Long id; // 店铺ID，主键，自增
     
-    private String shopName;
+    private String shopName; // 店铺名称
-    private Long userId; // 店主用户ID
+    private Long userId; // 店主用户ID，外键，关联users表
-    private Long categoryId;
+    private Long categoryId; // 店铺分类ID，外键，关联shop_categories表
-    private String shopLogo;
+    private String shopLogo; // 店铺Logo
-    private String coverImage;
+    private String coverImage; // 店铺封面图
-    private String description;
+    private String description; // 店铺描述
-    private String address;
+    private String address; // 店铺地址
-    private String contactPhone;
+    private String contactPhone; // 联系电话
-    private String contactPerson;
+    private String contactPerson; // 联系人
     private BigDecimal rating; // 店铺评分
-    private Integer salesVolume;
+    private Integer salesVolume; // 销量
-    private Integer status; // 0: 未审核, 1: 已审核, 2: 已关闭, 3: 审核失败
+    private Integer status; // 状态：0: 未审核, 1: 已审核, 2: 已关闭, 3: 审核失败
-    private String businessLicense;
+    private String businessLicense; // 营业执照
-    private Date businessStartTime;
+    private Date businessStartTime; // 营业时间开始
-    private Date businessEndTime;
+    private Date businessEndTime; // 营业时间结束
-    private Date createdAt;
+    private Date createdAt; // 创建时间
-    private Date updatedAt;
+    private Date updatedAt; // 更新时间
 }

src/main/java/com/qf/backend/entity/UserDetails.java

@@ -6,29 +6,33 @@ import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 
+import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
+import lombok.NoArgsConstructor;
 
 /**
  * 用户详细信息表
  */
-@Data
+@Data                       // 自动生成getter、setter、toString、equals、hashCode方法
-@Builder
+@Builder                    // 自动生成builder模式的构造器
+@NoArgsConstructor          // 自动生成无参构造器
+@AllArgsConstructor         // 自动生成全参构造器
 @TableName("user_details")
 public class UserDetails {
     
     @TableId(type = IdType.AUTO)
-    private Long id;
+    private Long id; // 详情ID，主键，自增
     
-    private Long userId;
+    private Long userId; // 用户ID，外键，关联users表
-    private String realName;
+    private String realName; // 真实姓名
-    private String idCard;
+    private String idCard; // 身份证号
-    private String gender; //男、女、保密
+    private String gender; // 性别：男、女、保密
-    private Date birthday;
+    private Date birthday; // 生日
-    private String address;
+    private String address; // 地址
-    private String province;
+    private String province; // 省份
-    private String city;
+    private String city; // 城市
-    private String district;
+    private String district; // 区县
-    private Date createdAt;
+    private Date createdAt; // 创建时间
-    private Date updatedAt;
+    private Date updatedAt; // 更新时间
 }

src/main/java/com/qf/backend/entity/UserRoles.java

@@ -6,21 +6,24 @@ import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 
+import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
+import lombok.NoArgsConstructor;
 
 /**
  * 用户-角色关联表
  */
-@Data
+@Data                       // 自动生成getter、setter、toString、equals、hashCode方法
-@Builder
+@Builder                    // 自动生成builder模式的构造器
+@NoArgsConstructor          // 自动生成无参构造器
+@AllArgsConstructor         // 自动生成全参构造器
 @TableName("user_roles")
 public class UserRoles {
     
     @TableId(type = IdType.AUTO)
-    private Long id;
+    private Long id; // 关联ID，主键，自增
-    
+    private Long userId; // 用户ID，外键，关联users表
-    private Long userId;
+    private Long roleId; // 角色ID，外键，关联roles表
-    private Long roleId;
+    private Date createdAt; // 创建时间
-    private Date createdAt;
 }

src/main/java/com/qf/backend/entity/Users.java

@@ -6,26 +6,30 @@ import com.baomidou.mybatisplus.annotation.IdType;
 import com.baomidou.mybatisplus.annotation.TableId;
 import com.baomidou.mybatisplus.annotation.TableName;
 
+import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Data;
+import lombok.NoArgsConstructor;
 
 /**
  * 用户基本信息表
  */
-@Data
+@Data                       // 自动生成getter、setter、toString、equals、hashCode方法
-@Builder
+@Builder                    // 自动生成builder模式的构造器
+@NoArgsConstructor          // 自动生成无参构造器
+@AllArgsConstructor         // 自动生成全参构造器
 @TableName("users")
 public class Users {
     
     @TableId(type = IdType.AUTO)
-    private Long id;
+    private Long id; // 用户ID，主键，自增
-    private String username;
+    private String username; // 用户名，唯一
-    private String password;
+    private String password; // 密码，加密存储
-    private String email;
+    private String email; // 邮箱，唯一
-    private String phone;
+    private String phone; // 手机号，唯一
-    private String nickname;
+    private String avatar; // 头像URL
-    private String avatar;
+    private Date lastLoginTime; // 最后登录时间
-    private Integer status; // 0: 禁用, 1: 启用
+    private Integer status; // 状态：0:禁用, 1:启用
-    private Date createdAt;
+    private Date createdAt; // 创建时间
-    private Date updatedAt;
+    private Date updatedAt; // 更新时间
 }

src/main/java/com/qf/backend/exception/ErrorCode.java

@@ -38,7 +38,8 @@ public enum ErrorCode {
     PRODUCT_OFF_SHELF(4092, "商品已下架"),
     INSUFFICIENT_STOCK(4093, "库存不足"),
     ORDER_CANCELLED(4094, "订单已取消"),
-    
+    ROLE_NOT_FOUND(4095, "角色不存在"),
+    PASSWORD_ERROR(4096, "密码错误"),
     // 服务器错误
     SYSTEM_ERROR(500, "服务器内部错误"),
     DATABASE_ERROR(5001, "数据库操作错误"),

src/main/java/com/qf/backend/exception/GlobalExceptionHandler.java

@@ -4,8 +4,6 @@ import java.sql.SQLException;
 import java.util.Objects;
 import java.util.StringJoiner;
 
-import javax.servlet.http.HttpServletRequest;
-
 import org.springframework.http.HttpStatus;
 import org.springframework.http.converter.HttpMessageNotReadableException;
 import org.springframework.security.access.AccessDeniedException;
@@ -17,7 +15,7 @@ import org.springframework.validation.BindingResult;
 import org.springframework.validation.FieldError;
 import org.springframework.web.HttpMediaTypeNotSupportedException;
 import org.springframework.web.HttpRequestMethodNotSupportedException;
-import org.springframework.web.bind.MethodArgumentNotValidException;
+import org.springframework.web.bind.MissingPathVariableException;
 import org.springframework.web.bind.MissingServletRequestParameterException;
 import org.springframework.web.bind.annotation.ExceptionHandler;
 import org.springframework.web.bind.annotation.ResponseStatus;
@@ -28,6 +26,7 @@ import org.springframework.web.servlet.NoHandlerFoundException;
 import com.qf.backend.common.Result;
 import com.qf.backend.common.ResultUtils;
 
+import jakarta.servlet.http.HttpServletRequest;
 import lombok.extern.slf4j.Slf4j;
 
 /**
@@ -46,24 +45,17 @@ public class GlobalExceptionHandler {
         log.warn("BusinessException: {} - Request: {}", e.getMessage(), request.getRequestURI());
         return ResultUtils.fail(e.getCode(), e.getMessage());
     }
-
     /**
-     * 处理参数验证异常（@Valid）
+     * 处理缺少路径变量异常
      */
-    @ExceptionHandler(MethodArgumentNotValidException.class)
+    @ExceptionHandler(MissingPathVariableException.class)
     @ResponseStatus(HttpStatus.BAD_REQUEST)
-    public Result<?> handleMethodArgumentNotValidException(MethodArgumentNotValidException e, HttpServletRequest request) {
+    public Result<?> handleMissingPathVariableException(MissingPathVariableException e, HttpServletRequest request) {
-        BindingResult bindingResult = e.getBindingResult();
+        String errorMsg = "缺少路径变量: " + e.getVariableName();
-        StringJoiner joiner = new StringJoiner(", ");
+        log.warn("MissingPathVariableException: {} - Request: {}", errorMsg, request.getRequestURI());
-        for (FieldError fieldError : bindingResult.getFieldErrors()) {
-            joiner.add(fieldError.getField() + ": " + fieldError.getDefaultMessage());
-        }
-        String errorMsg = joiner.toString();
-        log.warn("MethodArgumentNotValidException: {} - Request: {}", errorMsg, request.getRequestURI());
         return ResultUtils.paramError(errorMsg);
     }
-
+        /**
-    /**
      * 处理参数绑定异常（@RequestParam）
      */
     @ExceptionHandler(BindException.class)

src/main/java/com/qf/backend/mapper/UserRolesMapper.java

@@ -9,6 +9,7 @@ import com.qf.backend.entity.UserRoles;
  * 用户角色关联表 Mapper 接口
  */
 public interface UserRolesMapper extends BaseMapper<UserRoles> {
+    
     /**
      * 查询用户角色关联信息
      * @param userRoles 用户角色关联对象

src/main/java/com/qf/backend/mapper/UsersMapper.java

@@ -11,6 +11,14 @@ import com.qf.backend.entity.Users;
  * 用户基本信息表 Mapper 接口
  */
 public interface UsersMapper extends BaseMapper<Users> {
+    /**
+     * 登录
+     * @param username 用户名
+     * @param password 密码
+     * @return 用户对象
+     */
+    @Select("select * from users where username = #{username} and password = #{password}")
+    Users login(String username, String password);
     /**
      * 根据用户名查询用户
      * @param username 用户名
@@ -40,7 +48,6 @@ public interface UsersMapper extends BaseMapper<Users> {
      * @return 用户对象
      */
     Users selectInfo(Users users, QueryWrapper<Users> queryWrapper);
-
     /**
      * 更新用户信息
      * @param users 用户信息

src/main/java/com/qf/backend/service/PermissionsService.java

@@ -1,6 +1,7 @@
 package com.qf.backend.service;
 
 import com.baomidou.mybatisplus.extension.service.IService;
+import com.qf.backend.common.Result;
 import com.qf.backend.entity.Permissions;
 
 import java.util.List;
@@ -15,60 +16,60 @@ public interface PermissionsService extends IService<Permissions> {
      * @param permissionCode 权限编码
      * @return 权限信息
      */
-    Permissions getPermissionByCode(String permissionCode);
+    Result<Permissions> getPermissionByCode(String permissionCode);
 
     /**
      * 创建权限
      * @param permissions 权限信息
      * @return 是否成功
      */
-    boolean createPermission(Permissions permissions);
+    Result<Boolean> createPermission(Permissions permissions);
 
     /**
      * 更新权限信息
      * @param permissions 权限信息
      * @return 是否成功
      */
-    boolean updatePermission(Permissions permissions);
+    Result<Boolean> updatePermission(Permissions permissions);
 
     /**
      * 删除权限
      * @param id 权限ID
      * @return 是否成功
      */
-    boolean deletePermission(Long id);
+    Result<Boolean> deletePermission(Long id);
 
     /**
      * 查询所有权限
      * @return 权限列表
      */
-    List<Permissions> listAllPermissions();
+    Result<List<Permissions>> listAllPermissions();
 
     /**
      * 根据权限ID查询权限
      * @param id 权限ID
      * @return 权限信息
      */
-    Permissions getPermissionById(Long id);
+    Result<Permissions> getPermissionById(Long id);
 
     /**
      * 批量删除权限
      * @param ids 权限ID列表
      * @return 是否成功
      */
-    boolean batchDeletePermissions(List<Long> ids);
+    Result<Boolean> batchDeletePermissions(List<Long> ids);
 
     /**
      * 根据菜单ID查询权限
      * @param menuId 菜单ID
      * @return 权限列表
      */
-    List<Permissions> listPermissionsByMenuId(Long menuId);
+    Result<List<Permissions>> listPermissionsByMenuId(Long menuId);
 
     /**
      * 根据权限类型查询权限
      * @param permissionType 权限类型
      * @return 权限列表
      */
-    List<Permissions> listPermissionsByType(String permissionType);
+    Result<List<Permissions>> listPermissionsByType(String permissionType);
 }

src/main/java/com/qf/backend/service/RolesService.java

@@ -3,6 +3,7 @@ package com.qf.backend.service;
 import java.util.List;
 
 import com.baomidou.mybatisplus.extension.service.IService;
+import com.qf.backend.common.Result;
 import com.qf.backend.entity.Roles;
 
 /**
@@ -15,53 +16,53 @@ public interface RolesService extends IService<Roles> {
      * @param roleName 角色名称
      * @return 角色信息
      */
-    Roles getRoleByName(String roleName);
+    Result<Roles> getRoleByName(String roleName);
 
     /**
      * 创建角色
      * @param roles 角色信息
      * @return 是否成功
      */
-    boolean createRole(Roles roles);
+    Result<Boolean> createRole(Roles roles);
 
     /**
      * 更新角色信息
      * @param roles 角色信息
      * @return 是否成功
      */
-    boolean updateRole(Roles roles);
+    Result<Boolean> updateRole(Roles roles);
 
     /**
      * 删除角色
      * @param id 角色ID
      * @return 是否成功
      */
-    boolean deleteRole(Long id);
+    Result<Boolean> deleteRole(Long id);
 
     /**
      * 查询所有角色
      * @return 角色列表
      */
-    List<Roles> listAllRoles();
+    Result<List<Roles>> listAllRoles();
 
     /**
      * 根据角色ID查询角色
      * @param id 角色ID
      * @return 角色信息
      */
-    Roles getRoleById(Long id);
+    Result<Roles> getRoleById(Long id);
 
     /**
      * 批量删除角色
      * @param ids 角色ID列表
      * @return 是否成功
      */
-    boolean batchDeleteRoles(List<Long> ids);
+    Result<Boolean> batchDeleteRoles(List<Long> ids);
 
     /**
      * 根据用户ID查询其拥有的角色列表
      * @param userId 用户ID
      * @return 角色列表
      */
-    List<Roles> listRolesByUserId(Long userId);
+    Result<List<Roles>> listRolesByUserId(Long userId);
 }

src/main/java/com/qf/backend/service/UserDetailsService.java

@@ -44,12 +44,4 @@ public interface UserDetailsService extends IService<UserDetails> {
      */
     Result<UserDetails> getUserDetailsById(Long id);
 
-    /**
-     * 更新用户联系方式
-     * @param userId 用户ID
-     * @param phone 手机号
-     * @param email 邮箱
-     * @return 是否成功
-     */
-    Result<Boolean> updateContactInfo(Long userId, String phone, String email);
 }

src/main/java/com/qf/backend/service/UserLoginService.java

@@ -0,0 +1,22 @@
+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Interface.java to edit this template
+ */
+
+package com.qf.backend.service;
+
+import com.qf.backend.common.Result;
+import com.qf.backend.dto.LoginUser;
+
+/**
+ * 用户登录服务接口
+ */
+public interface UserLoginService {
+    /**
+     * 用户登录
+     * @param username 用户名
+     * @param password 密码
+     * @return 登录结果
+     */
+    Result<LoginUser> login(String username, String password);
+}

src/main/java/com/qf/backend/service/UsersService.java

@@ -1,11 +1,11 @@
 package com.qf.backend.service;
 
+import java.util.List;
+
 import com.baomidou.mybatisplus.extension.service.IService;
 import com.qf.backend.common.Result;
 import com.qf.backend.entity.Users;
 
-import java.util.List;
-
 /**
  * 用户服务接口
  */
@@ -25,6 +25,14 @@ public interface UsersService extends IService<Users> {
      */
     Result<Users> getUserByEmail(String email);
 
+    /**
+     * 登录
+     * @param username 用户名
+     * @param password 密码
+     * @return 用户信息
+     */
+    Result<Users> login(String username, String password);
+
     /**
      * 创建用户
      * @param users 用户信息

src/main/java/com/qf/backend/service/impl/OrderItemsServiceImpl.java

@@ -1,5 +1,6 @@
 package com.qf.backend.service.impl;
 
+import java.math.BigDecimal;
 import java.util.Collection;
 import java.util.List;
 import java.util.Map;
@@ -10,10 +11,12 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 import com.baomidou.mybatisplus.core.conditions.Wrapper;
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 import com.qf.backend.common.Result;
 import com.qf.backend.common.ResultUtils;
 import com.qf.backend.entity.OrderItems;
+import com.qf.backend.exception.BusinessException;
 import com.qf.backend.exception.ErrorCode;
 import com.qf.backend.mapper.OrderItemsMapper;
 import com.qf.backend.service.OrderItemsService;
@@ -26,117 +29,398 @@ public class OrderItemsServiceImpl implements OrderItemsService  {
 
     @Override
     public Result<List<OrderItems>> getOrderItemsByOrderId(Long orderId) {
+        // 参数校验
+        if (orderId == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单ID不能为空");
+        }
+        
         try {
             List<OrderItems> orderItems = orderItemsMapper.selectByOrderId(orderId);
             if (orderItems == null || orderItems.isEmpty()) {
-                return ResultUtils.fail(ErrorCode.ORDER_NOT_FOUND);
+                throw new BusinessException(ErrorCode.NOT_FOUND, "订单商品不存在");
             }
             return ResultUtils.success(orderItems);
+        } catch (BusinessException e) {
+            throw e;
         } catch (Exception e) {
-            return ResultUtils.fail(ErrorCode.ORDER_NOT_FOUND);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询订单商品失败: " + e.getMessage(), e);
         }
     }
+    
     @Override
     public Result<List<OrderItems>> getOrderItemsByProductId(Long productId) {
+        // 参数校验
+        if (productId == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "商品ID不能为空");
+        }
+        
         try {
             List<OrderItems> orderItems = orderItemsMapper.selectByProductId(productId);
             if (orderItems == null || orderItems.isEmpty()) {
-                return ResultUtils.fail(ErrorCode.ORDER_NOT_FOUND);
+                throw new BusinessException(ErrorCode.NOT_FOUND, "订单商品不存在");
             }
             return ResultUtils.success(orderItems);
+        } catch (BusinessException e) {
+            throw e;
         } catch (Exception e) {
-            return ResultUtils.fail(ErrorCode.ORDER_NOT_FOUND);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询订单商品失败: " + e.getMessage(), e);
         }
     }
     @Override
     public BaseMapper<OrderItems> getBaseMapper() {
-        // TODO Auto-generated method stub
+        return orderItemsMapper;
-        throw new UnsupportedOperationException("Unimplemented method 'getBaseMapper'");
     }
+    
     @Override
     public Class<OrderItems> getEntityClass() {
-        // TODO Auto-generated method stub
+        return OrderItems.class;
-        throw new UnsupportedOperationException("Unimplemented method 'getEntityClass'");
     }
+    
     @Override
     public Map<String, Object> getMap(Wrapper<OrderItems> queryWrapper) {
-        // TODO Auto-generated method stub
+        try {
-        throw new UnsupportedOperationException("Unimplemented method 'getMap'");
+            return orderItemsMapper.selectMaps(queryWrapper).get(0);
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "获取Map数据失败: " + e.getMessage(), e);
+        }
     }
+    
     @Override
     public <V> V getObj(Wrapper<OrderItems> queryWrapper, Function<? super Object, V> mapper) {
-        // TODO Auto-generated method stub
+        try {
-        throw new UnsupportedOperationException("Unimplemented method 'getObj'");
+            OrderItems orderItem = orderItemsMapper.selectOne(queryWrapper);
+            if (orderItem == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "订单商品不存在");
+            }
+            return mapper.apply(orderItem);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "获取对象数据失败: " + e.getMessage(), e);
+        }
     }
+    
     @Override
     public OrderItems getOne(Wrapper<OrderItems> queryWrapper, boolean throwEx) {
-        // TODO Auto-generated method stub
+        try {
-        throw new UnsupportedOperationException("Unimplemented method 'getOne'");
+            OrderItems orderItem = orderItemsMapper.selectOne(queryWrapper);
+            if (orderItem == null && throwEx) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "订单商品不存在");
+            }
+            return orderItem;
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "获取单个对象失败: " + e.getMessage(), e);
+        }
     }
+    
     @Override
     public Optional<OrderItems> getOneOpt(Wrapper<OrderItems> queryWrapper, boolean throwEx) {
-        // TODO Auto-generated method stub
+        try {
-        throw new UnsupportedOperationException("Unimplemented method 'getOneOpt'");
+            OrderItems orderItem = orderItemsMapper.selectOne(queryWrapper);
+            if (orderItem == null && throwEx) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "订单商品不存在");
+            }
+            return Optional.ofNullable(orderItem);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "获取Optional对象失败: " + e.getMessage(), e);
+        }
     }
+    
     @Override
     public boolean saveBatch(Collection<OrderItems> entityList, int batchSize) {
-        // TODO Auto-generated method stub
+        try {
-        throw new UnsupportedOperationException("Unimplemented method 'saveBatch'");
+            if (entityList == null || entityList.isEmpty()) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "实体列表不能为空");
+            }
+            if (batchSize <= 0) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "批处理大小必须大于0");
+            }
+            
+            // 简单的批量保存实现
+            for (OrderItems entity : entityList) {
+                orderItemsMapper.insert(entity);
+            }
+            return true;
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "批量保存失败: " + e.getMessage(), e);
+        }
     }
+    
     @Override
     public boolean saveOrUpdate(OrderItems entity) {
-        // TODO Auto-generated method stub
+        try {
-        throw new UnsupportedOperationException("Unimplemented method 'saveOrUpdate'");
+            if (entity == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "实体不能为空");
+            }
+            
+            if (entity.getId() == null) {
+                // 新增
+                return orderItemsMapper.insert(entity) > 0;
+            } else {
+                // 更新
+                return orderItemsMapper.updateById(entity) > 0;
+            }
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "保存或更新失败: " + e.getMessage(), e);
+        }
     }
+    
     @Override
     public boolean saveOrUpdateBatch(Collection<OrderItems> entityList, int batchSize) {
-        // TODO Auto-generated method stub
+        try {
-        throw new UnsupportedOperationException("Unimplemented method 'saveOrUpdateBatch'");
+            if (entityList == null || entityList.isEmpty()) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "实体列表不能为空");
+            }
+            if (batchSize <= 0) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "批处理大小必须大于0");
+            }
+            
+            for (OrderItems entity : entityList) {
+                saveOrUpdate(entity);
+            }
+            return true;
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "批量保存或更新失败: " + e.getMessage(), e);
+        }
     }
+    
     @Override
     public boolean updateBatchById(Collection<OrderItems> entityList, int batchSize) {
-        // TODO Auto-generated method stub
+        try {
-        throw new UnsupportedOperationException("Unimplemented method 'updateBatchById'");
+            if (entityList == null || entityList.isEmpty()) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "实体列表不能为空");
+            }
+            if (batchSize <= 0) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "批处理大小必须大于0");
+            }
+            
+            for (OrderItems entity : entityList) {
+                if (entity.getId() == null) {
+                    throw new BusinessException(ErrorCode.MISSING_PARAM, "实体ID不能为空");
+                }
+                orderItemsMapper.updateById(entity);
+            }
+            return true;
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "批量更新失败: " + e.getMessage(), e);
+        }
     }
     @Override
     public Result<Boolean> createOrderItem(OrderItems orderItems) {
-        // TODO Auto-generated method stub
+        // 参数校验
-        throw new UnsupportedOperationException("Unimplemented method 'createOrderItem'");
+        if (orderItems == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单商品信息不能为空");
+        }
+        if (orderItems.getOrderId() == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单ID不能为空");
+        }
+        if (orderItems.getProductId() == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "商品ID不能为空");
+        }
+        if (orderItems.getQuantity() == null || orderItems.getQuantity() <= 0) {
+            throw new BusinessException(ErrorCode.INVALID_PARAM, "商品数量必须大于0");
+        }
+        if (orderItems.getPrice() == null || orderItems.getPrice().compareTo(BigDecimal.ZERO) < 0) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "商品价格不能为负数");
+            }
+        
+        try {
+            int result = orderItemsMapper.insert(orderItems);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "创建订单商品失败");
+            }
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "创建订单商品失败: " + e.getMessage(), e);
+        }
     }
+    
     @Override
     public Result<Boolean> updateOrderItem(OrderItems orderItems) {
-        // TODO Auto-generated method stub
+        // 参数校验
-        throw new UnsupportedOperationException("Unimplemented method 'updateOrderItem'");
+        if (orderItems == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单商品信息不能为空");
+        }
+        if (orderItems.getId() == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单商品ID不能为空");
+        }
+        
+        try {
+            // 检查是否存在
+            OrderItems existingItem = orderItemsMapper.selectById(orderItems.getId());
+            if (existingItem == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "订单商品不存在");
+            }
+            
+            int result = orderItemsMapper.updateById(orderItems);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "更新订单商品失败");
+            }
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新订单商品失败: " + e.getMessage(), e);
+        }
     }
+    
     @Override
     public Result<Boolean> deleteOrderItem(Long id) {
-        // TODO Auto-generated method stub
+        // 参数校验
-        throw new UnsupportedOperationException("Unimplemented method 'deleteOrderItem'");
+        if (id == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单商品ID不能为空");
+        }
+        
+        try {
+            // 检查是否存在
+            OrderItems orderItem = orderItemsMapper.selectById(id);
+            if (orderItem == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "订单商品不存在");
+            }
+            
+            int result = orderItemsMapper.deleteById(id);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "删除订单商品失败");
+            }
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "删除订单商品失败: " + e.getMessage(), e);
+        }
     }
+    
     @Override
     public Result<OrderItems> getOrderItemById(Long id) {
-        // TODO Auto-generated method stub
+        // 参数校验
-        throw new UnsupportedOperationException("Unimplemented method 'getOrderItemById'");
+        if (id == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单商品ID不能为空");
+        }
+        
+        try {
+            OrderItems orderItem = orderItemsMapper.selectById(id);
+            if (orderItem == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "订单商品不存在");
+            }
+            return ResultUtils.success(orderItem);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询订单商品失败: " + e.getMessage(), e);
+        }
     }
+    
     @Override
     public Result<Boolean> batchCreateOrderItems(List<OrderItems> orderItemsList) {
-        // TODO Auto-generated method stub
+        // 参数校验
-        throw new UnsupportedOperationException("Unimplemented method 'batchCreateOrderItems'");
+        if (orderItemsList == null || orderItemsList.isEmpty()) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单商品列表不能为空");
+        }
+        if (orderItemsList.size() > 100) {
+            throw new BusinessException(ErrorCode.INVALID_PARAM, "批量创建数量不能超过100个");
+        }
+        
+        try {
+            // 逐个创建订单商品
+            for (OrderItems orderItem : orderItemsList) {
+                // 验证每个订单商品
+                if (orderItem.getOrderId() == null || orderItem.getProductId() == null || 
+                    orderItem.getQuantity() == null || orderItem.getQuantity() <= 0 ||
+                    orderItem.getPrice() == null || orderItem.getPrice().compareTo(BigDecimal.ZERO) < 0) {
+                    throw new BusinessException(ErrorCode.INVALID_PARAM, "订单商品信息不完整或无效");
+                }
+                
+                int result = orderItemsMapper.insert(orderItem);
+                if (result <= 0) {
+                    throw new BusinessException(ErrorCode.BUSINESS_ERROR, "批量创建订单商品失败");
+                }
+            }
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "批量创建订单商品失败: " + e.getMessage(), e);
+        }
     }
+    
     @Override
     public Result<Boolean> deleteOrderItemsByOrderId(Long orderId) {
-        // TODO Auto-generated method stub
+        // 参数校验
-        throw new UnsupportedOperationException("Unimplemented method 'deleteOrderItemsByOrderId'");
+        if (orderId == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单ID不能为空");
+        }
+        
+        try {
+            int result = orderItemsMapper.delete(
+                new QueryWrapper<OrderItems>().eq("order_id", orderId)
+            );
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "删除订单下所有商品失败: " + e.getMessage(), e);
+        }
     }
+    
     @Override
     public Result<Double> calculateOrderTotal(Long orderId) {
-        // TODO Auto-generated method stub
+        // 参数校验
-        throw new UnsupportedOperationException("Unimplemented method 'calculateOrderTotal'");
+        if (orderId == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单ID不能为空");
+        }
+        
+        try {
+            List<OrderItems> orderItems = orderItemsMapper.selectByOrderId(orderId);
+            if (orderItems == null || orderItems.isEmpty()) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "订单商品不存在");
+            }
+            
+            double totalAmount = 0.0;
+            for (OrderItems item : orderItems) {
+                totalAmount += item.getPrice().multiply(new BigDecimal(item.getQuantity())).doubleValue();
+            }
+            return ResultUtils.success(totalAmount);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "计算订单总金额失败: " + e.getMessage(), e);
+        }
     }
+    
     @Override
     public Result<List<OrderItems>> getOrderItemsBySkuId(Long skuId) {
-        // TODO Auto-generated method stub
+        // 参数校验
-        throw new UnsupportedOperationException("Unimplemented method 'getOrderItemsBySkuId'");
+        if (skuId == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "SKU ID不能为空");
+        }
+        
+        try {
+            List<OrderItems> orderItems = orderItemsMapper.selectList(
+                new QueryWrapper<OrderItems>().eq("sku_id", skuId)
+            );
+            if (orderItems == null || orderItems.isEmpty()) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "该SKU的订单商品不存在");
+            }
+            return ResultUtils.success(orderItems);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询SKU订单商品失败: " + e.getMessage(), e);
+        }
     }
 
-}
+}

src/main/java/com/qf/backend/service/impl/OrderStatusHistoryServiceImpl.java

@@ -0,0 +1,166 @@
+package com.qf.backend.service.impl;
+
+import java.util.List;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.qf.backend.common.Result;
+import com.qf.backend.entity.OrderStatusHistory;
+import com.qf.backend.exception.BusinessException;
+import com.qf.backend.exception.ErrorCode;
+import com.qf.backend.mapper.OrderStatusHistoryMapper;
+import com.qf.backend.service.OrderStatusHistoryService;
+import com.qf.backend.util.ValidateUtil;
+
+
+@Service
+public class OrderStatusHistoryServiceImpl extends ServiceImpl<OrderStatusHistoryMapper, OrderStatusHistory> implements OrderStatusHistoryService {
+
+    private static final Logger logger = LoggerFactory.getLogger(OrderStatusHistoryServiceImpl.class);
+    
+    @Autowired
+    private OrderStatusHistoryMapper orderStatusHistoryMapper;
+
+    @Override
+    public Result<List<OrderStatusHistory>> getHistoryByOrderId(Long orderId) {
+        logger.info("根据订单ID查询订单状态历史记录，订单ID：{}", orderId);
+        if (ValidateUtil.isEmpty(orderId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单ID不能为空");
+        }
+        try {
+            List<OrderStatusHistory> historyList = orderStatusHistoryMapper.selectList( new QueryWrapper<OrderStatusHistory>().eq("order_id", orderId));
+            return Result.success(historyList);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询订单状态历史记录失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> createStatusHistory(OrderStatusHistory orderStatusHistory) {
+        logger.info("创建订单状态历史记录，订单ID：{}", orderStatusHistory.getOrderId());
+        if (ValidateUtil.isEmpty(orderStatusHistory.getOrderId())) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单ID不能为空");
+        }
+        try {
+            int result = orderStatusHistoryMapper.insert(orderStatusHistory);
+            if (result > 0) {
+                throw new BusinessException(ErrorCode.DATABASE_ERROR, "创建订单状态历史记录失败");
+            }
+            return Result.success(true);
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "创建订单状态历史记录失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> updateStatusHistory(OrderStatusHistory orderStatusHistory) {
+        logger.info("更新订单状态历史记录，订单ID：{}", orderStatusHistory.getOrderId());
+        if (ValidateUtil.isEmpty(orderStatusHistory.getOrderId())) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单ID不能为空");
+        }
+        try {
+            boolean result = orderStatusHistoryMapper.updateById(orderStatusHistory) > 0;
+            return Result.success(result);
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新订单状态历史记录失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> deleteStatusHistory(Long id) {
+        logger.info("删除订单状态历史记录，ID：{}", id);
+        if (ValidateUtil.isEmpty(id)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "ID不能为空");
+        }
+        try {
+            boolean result = orderStatusHistoryMapper.deleteById(id) > 0;
+            return Result.success(result);
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "删除订单状态历史记录失败", e);
+        }
+    }
+
+    @Override
+    public Result<OrderStatusHistory> getStatusHistoryById(Long id) {
+        logger.info("根据ID查询订单状态历史记录，ID：{}", id);
+        if (ValidateUtil.isEmpty(id)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "ID不能为空");
+        }
+        try {
+            OrderStatusHistory history = orderStatusHistoryMapper.selectById(id);
+            return Result.success(history);
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询订单状态历史记录失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> batchCreateStatusHistory(List<OrderStatusHistory> historyList) {
+        logger.info("批量创建订单状态历史记录，数量：{}", historyList.size());
+        if (ValidateUtil.isEmpty(historyList)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单状态历史记录列表不能为空");
+        }
+        try {
+            for (OrderStatusHistory history : historyList) {
+                int result = orderStatusHistoryMapper.insert(history);
+                if (result > 0) {
+                    throw new BusinessException(ErrorCode.DATABASE_ERROR, "批量创建订单状态历史记录失败");
+                }
+            }
+            return Result.success(true);
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "批量创建订单状态历史记录失败", e);
+        }
+    }
+
+    @Override
+    public Result<List<OrderStatusHistory>> getHistoryByOrderIdAndStatus(Long orderId, Integer status) {
+        logger.info("根据订单ID和状态查询订单状态历史记录，订单ID：{}，状态：{}", orderId, status);
+        if (ValidateUtil.isEmpty(orderId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单ID不能为空");
+        }
+        try {
+            List<OrderStatusHistory> historyList = orderStatusHistoryMapper.selectList( new QueryWrapper<OrderStatusHistory>().eq("order_id", orderId).eq("status", status));
+            return Result.success(historyList);
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询订单状态历史记录失败", e);
+        }
+    }
+
+    @Override
+    public Result<OrderStatusHistory> getLatestStatusHistory(Long orderId) {
+        logger.info("根据订单ID查询最新订单状态历史记录，订单ID：{}", orderId);
+        if (ValidateUtil.isEmpty(orderId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单ID不能为空");
+        }
+        try {
+            OrderStatusHistory history = orderStatusHistoryMapper.selectOne( new QueryWrapper<OrderStatusHistory>().eq("order_id", orderId).orderByDesc("id").last("limit 1"));
+            return Result.success(history);
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询最新订单状态历史记录失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> deleteHistoryByOrderId(Long orderId) {
+        logger.info("根据订单ID删除订单状态历史记录，订单ID：{}", orderId);
+        if (ValidateUtil.isEmpty(orderId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单ID不能为空");
+        }
+        try {
+            boolean result = orderStatusHistoryMapper.delete( new QueryWrapper<OrderStatusHistory>().eq("order_id", orderId)) > 0;
+            return Result.success(result);
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "删除订单状态历史记录失败", e);
+        }
+    }
+
+
+}

src/main/java/com/qf/backend/service/impl/OrdersServiceImpl.java

@@ -1,5 +1,7 @@
 package com.qf.backend.service.impl;
 
+import java.math.BigDecimal;
+import java.util.Date;
 import java.util.List;
 
 import org.slf4j.Logger;
@@ -7,86 +9,293 @@ import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.qf.backend.common.Result;
 import com.qf.backend.common.ResultUtils;
 import com.qf.backend.entity.Orders;
+import com.qf.backend.exception.BusinessException;
 import com.qf.backend.exception.ErrorCode;
 import com.qf.backend.mapper.OrdersMapper;
 import com.qf.backend.service.OrdersService;
 
 @Service
 public class OrdersServiceImpl extends ServiceImpl<OrdersMapper, Orders> implements OrdersService {
+    private final Logger logger = LoggerFactory.getLogger(OrdersServiceImpl.class);
     @Autowired
     private OrdersMapper ordersMapper;
-    private Logger logger = LoggerFactory.getLogger(OrdersServiceImpl.class);
 
     @Override
     public Result<Orders> getOrderByNumber(String orderNumber) {
         logger.info("根据订单号查询订单: {}", orderNumber);
+        // 参数校验
+        if (orderNumber == null || orderNumber.trim().isEmpty()) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单编号不能为空");
+        }
+        
         try {
             Orders orders = ordersMapper.selectByOrderNumber(orderNumber);
             if (orders == null) {
                 logger.warn("订单号 {} 不存在", orderNumber);
-                return ResultUtils.fail(ErrorCode.ORDER_NOT_FOUND);
+                throw new BusinessException(ErrorCode.ORDER_NOT_FOUND, "订单不存在: " + orderNumber);
             }
             return ResultUtils.success(orders);
+        } catch (BusinessException e) {
+            throw e;
         } catch (Exception e) {
-            return ResultUtils.fail(ErrorCode.ORDER_NOT_FOUND);
+            logger.error("查询订单失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询订单失败: " + e.getMessage(), e);
         }
     }
 
     @Override
     public Result<List<Orders>> getOrdersByUserId(Long userId) {
-        // TODO Auto-generated method stub
+        // 参数校验
-        throw new UnsupportedOperationException("Unimplemented method 'getOrdersByUserId'");
+        if (userId == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "用户ID不能为空");
+        }
+        
+        try {
+            List<Orders> ordersList = ordersMapper.selectList(
+                new QueryWrapper<Orders>().eq("user_id", userId).orderByDesc("create_time")
+            );
+            return ResultUtils.success(ordersList);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("查询用户订单失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询用户订单失败: " + e.getMessage(), e);
+        }
     }
 
     @Override
     public Result<Boolean> createOrder(Orders orders) {
-        // TODO Auto-generated method stub
+        // 参数校验
-        throw new UnsupportedOperationException("Unimplemented method 'createOrder'");
+        if (orders == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单信息不能为空");
+        }
+        if (orders.getUserId() == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "用户ID不能为空");
+        }
+        if (orders.getOrderNo() == null || orders.getOrderNo().trim().isEmpty()) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单编号不能为空");
+        }
+        if (orders.getTotalAmount() == null || orders.getTotalAmount().compareTo(BigDecimal.ZERO) < 0) {
+            throw new BusinessException(ErrorCode.INVALID_PARAM, "订单金额不能为负数");
+        }
+        
+        try {
+            // 检查订单编号是否已存在
+            Orders existingOrder = ordersMapper.selectByOrderNumber(orders.getOrderNo());
+            if (existingOrder != null) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "订单编号已存在: " + orders.getOrderNo());
+            }
+            
+            // 设置默认值
+            if (orders.getOrderStatus() == null) {
+                orders.setOrderStatus(0); // 默认为待支付状态
+            }
+            if (orders.getCreatedAt() == null) {
+                orders.setCreatedAt(new Date());
+            }
+            
+            int result = ordersMapper.insert(orders);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "创建订单失败");
+            }
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("创建订单失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "创建订单失败: " + e.getMessage(), e);
+        }
     }
 
     @Override
     public Result<Boolean> updateOrder(Orders orders) {
-        // TODO Auto-generated method stub
+        // 参数校验
-        throw new UnsupportedOperationException("Unimplemented method 'updateOrder'");
+        if (orders == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单信息不能为空");
+        }
+        if (orders.getId() == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单ID不能为空");
+        }
+        
+        try {
+            // 检查订单是否存在
+            Orders existingOrder = ordersMapper.selectById(orders.getId());
+            if (existingOrder == null) {
+                throw new BusinessException(ErrorCode.ORDER_NOT_FOUND, "订单不存在");
+            }
+            
+            // 更新时间戳
+            orders.setUpdatedAt(new Date());
+            
+            int result = ordersMapper.updateById(orders);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "更新订单失败");
+            }
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("更新订单失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新订单失败: " + e.getMessage(), e);
+        }
     }
 
     @Override
     public Result<Boolean> deleteOrder(Long id) {
-        // TODO Auto-generated method stub
+        // 参数校验
-        throw new UnsupportedOperationException("Unimplemented method 'deleteOrder'");
+        if (id == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单ID不能为空");
+        }
+        
+        try {
+            // 检查订单是否存在
+            Orders orders = ordersMapper.selectById(id);
+            if (orders == null) {
+                throw new BusinessException(ErrorCode.ORDER_NOT_FOUND, "订单不存在");
+            }
+            
+            int result = ordersMapper.deleteById(id);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "删除订单失败");
+            }
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("删除订单失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "删除订单失败: " + e.getMessage(), e);
+        }
     }
 
     @Override
     public Result<Orders> getOrderById(Long id) {
-        // TODO Auto-generated method stub
+        // 参数校验
-        throw new UnsupportedOperationException("Unimplemented method 'getOrderById'");
+        if (id == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单ID不能为空");
+        }
+        
+        try {
+            Orders orders = ordersMapper.selectById(id);
+            if (orders == null) {
+                throw new BusinessException(ErrorCode.ORDER_NOT_FOUND, "订单不存在");
+            }
+            return ResultUtils.success(orders);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("查询订单失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询订单失败: " + e.getMessage(), e);
+        }
     }
 
     @Override
     public Result<List<Orders>> listOrdersByPage(int page, int size) {
-        // TODO Auto-generated method stub
+        // 参数校验
-        throw new UnsupportedOperationException("Unimplemented method 'listOrdersByPage'");
+        if (page < 1) {
+            throw new BusinessException(ErrorCode.INVALID_PARAM, "页码不能小于1");
+        }
+        if (size < 1 || size > 100) {
+            throw new BusinessException(ErrorCode.INVALID_PARAM, "每页大小必须在1-100之间");
+        }
+        
+        try {
+            // 简单分页实现
+            int offset = (page - 1) * size;
+            List<Orders> ordersList = ordersMapper.selectList(
+                new QueryWrapper<Orders>().last("LIMIT " + offset + ", " + size).orderByDesc("create_time")
+            );
+            return ResultUtils.success(ordersList);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("分页查询订单失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "分页查询订单失败: " + e.getMessage(), e);
+        }
     }
 
     @Override
     public Result<List<Orders>> getOrdersByShopId(Long shopId) {
-        // TODO Auto-generated method stub
+        // 参数校验
-        throw new UnsupportedOperationException("Unimplemented method 'getOrdersByShopId'");
+        if (shopId == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "店铺ID不能为空");
+        }
+        
+        try {
+            List<Orders> ordersList = ordersMapper.selectList(
+                new QueryWrapper<Orders>().eq("shop_id", shopId).orderByDesc("create_time")
+            );
+            return ResultUtils.success(ordersList);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("查询店铺订单失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询店铺订单失败: " + e.getMessage(), e);
+        }
     }
 
     @Override
     public Result<Boolean> updateOrderStatus(Long orderId, Integer status) {
-        // TODO Auto-generated method stub
+        // 参数校验
-        throw new UnsupportedOperationException("Unimplemented method 'updateOrderStatus'");
+        if (orderId == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单ID不能为空");
+        }
+        if (status == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单状态不能为空");
+        }
+        
+        try {
+            // 检查订单是否存在
+            Orders orders = ordersMapper.selectById(orderId);
+            if (orders == null) {
+                throw new BusinessException(ErrorCode.ORDER_NOT_FOUND, "订单不存在");
+            }
+            
+            // 检查状态是否合法（假设状态值为0-5）
+            if (status < 0 || status > 5) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "无效的订单状态值");
+            }
+            
+            // 更新状态
+            Orders updateOrder = new Orders();
+            updateOrder.setId(orderId);
+            updateOrder.setOrderStatus(status);
+            updateOrder.setUpdatedAt(new Date());
+            
+            int result = ordersMapper.updateById(updateOrder);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "更新订单状态失败");
+            }
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("更新订单状态失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新订单状态失败: " + e.getMessage(), e);
+        }
     }
 
     @Override
     public Result<List<Orders>> getOrdersByStatus(Integer status) {
-        // TODO Auto-generated method stub
+        // 参数校验
-        throw new UnsupportedOperationException("Unimplemented method 'getOrdersByStatus'");
+        if (status == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单状态不能为空");
+        }
+        
+        try {
+            List<Orders> ordersList = ordersMapper.selectList(
+                new QueryWrapper<Orders>().eq("status", status).orderByDesc("create_time")
+            );
+            return ResultUtils.success(ordersList);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("查询订单失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询订单失败: " + e.getMessage(), e);
+        }
     }
 }

src/main/java/com/qf/backend/service/impl/PaymentsServiceImpl.java

@@ -0,0 +1,215 @@
+package com.qf.backend.service.impl;
+
+import java.util.List;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.qf.backend.entity.Payments;
+import com.qf.backend.exception.BusinessException;
+import com.qf.backend.exception.ErrorCode;
+import com.qf.backend.mapper.PaymentsMapper;
+import com.qf.backend.service.PaymentsService;
+import com.qf.backend.util.ValidateUtil;
+
+/**
+ * 支付服务实现类
+ */
+@Service
+public class PaymentsServiceImpl extends ServiceImpl<PaymentsMapper, Payments> implements PaymentsService {
+
+    @Autowired
+    private PaymentsMapper paymentsMapper;
+
+    @Override
+    public Payments getPaymentByOrderId(Long orderId) {
+        if (ValidateUtil.isEmpty(orderId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单ID不能为空");
+        }
+        try {
+            return paymentsMapper.selectOne(
+                    new QueryWrapper<Payments>().eq("order_id", orderId));
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询支付记录失败", e);
+        }
+    }
+
+    @Override
+    public Payments getPaymentByTransactionId(String transactionId) {
+        if (ValidateUtil.isEmpty(transactionId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "支付流水号不能为空");
+        }
+        try {
+            return paymentsMapper.selectOne(
+                    new QueryWrapper<Payments>().eq("transaction_id", transactionId));
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询支付记录失败", e);
+        }
+    }
+
+    @Override
+    public boolean createPayment(Payments payments) {
+        if (ValidateUtil.isEmpty(payments)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "支付信息不能为空");
+        }
+        if (ValidateUtil.isEmpty(payments.getOrderId())) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单ID不能为空");
+        }
+        if (payments.getAmount() == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "支付金额不能为空");
+        }
+        if (ValidateUtil.isEmpty(payments.getPaymentMethod())) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "支付方式不能为空");
+        }
+        try {
+            int result = paymentsMapper.insert(payments);
+            return result > 0;
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "创建支付记录失败", e);
+        }
+    }
+
+    @Override
+    public boolean updatePayment(Payments payments) {
+        if (ValidateUtil.isEmpty(payments)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "支付信息不能为空");
+        }
+        if (ValidateUtil.isEmpty(payments.getId())) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "支付ID不能为空");
+        }
+        try {
+            // 检查支付记录是否存在
+            Payments existing = paymentsMapper.selectById(payments.getId());
+            if (existing == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "支付记录不存在");
+            }
+            int result = paymentsMapper.updateById(payments);
+            return result > 0;
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新支付记录失败", e);
+        }
+    }
+
+    @Override
+    public boolean deletePayment(Long id) {
+        if (ValidateUtil.isEmpty(id)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "支付ID不能为空");
+        }
+        try {
+            // 检查支付记录是否存在
+            Payments existing = paymentsMapper.selectById(id);
+            if (existing == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "支付记录不存在");
+            }
+            int result = paymentsMapper.deleteById(id);
+            return result > 0;
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "删除支付记录失败", e);
+        }
+    }
+
+    @Override
+    public Payments getPaymentById(Long id) {
+        if (ValidateUtil.isEmpty(id)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "支付ID不能为空");
+        }
+        try {
+            Payments payment = paymentsMapper.selectById(id);
+            if (payment == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "支付记录不存在");
+            }
+            return payment;
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询支付记录失败", e);
+        }
+    }
+
+    @Override
+    public List<Payments> getPaymentsByUserId(Long userId) {
+        if (ValidateUtil.isEmpty(userId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "用户ID不能为空");
+        }
+        try {
+            return paymentsMapper.selectList(
+                    new QueryWrapper<Payments>().eq("user_id", userId));
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询支付记录失败", e);
+        }
+    }
+
+    @Override
+    public List<Payments> getPaymentsByStatus(Integer status) {
+        if (ValidateUtil.isEmpty(status)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "支付状态不能为空");
+        }
+        try {
+            return paymentsMapper.selectList(
+                    new QueryWrapper<Payments>().eq("status", status));
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询支付记录失败", e);
+        }
+    }
+
+    @Override
+    public boolean updatePaymentStatus(Long paymentId, Integer status) {
+        if (ValidateUtil.isEmpty(paymentId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "支付ID不能为空");
+        }
+        if (ValidateUtil.isEmpty(status)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "支付状态不能为空");
+        }
+        try {
+            // 检查支付记录是否存在
+            Payments existing = paymentsMapper.selectById(paymentId);
+            if (existing == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "支付记录不存在");
+            }
+            // 更新状态
+            existing.setPaymentStatus(status);
+            int result = paymentsMapper.updateById(existing);
+            return result > 0;
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新支付状态失败", e);
+        }
+    }
+
+    @Override
+    public List<Payments> listPaymentsByPage(int page, int size) {
+        if (page < 1) {
+            throw new BusinessException(ErrorCode.INVALID_PARAM, "页码不能小于1");
+        }
+        if (size < 1 || size > 100) {
+            throw new BusinessException(ErrorCode.INVALID_PARAM, "每页数量必须在1-100之间");
+        }
+        try {
+            Page<Payments> paymentPage = new Page<>(page, size);
+            Page<Payments> resultPage = paymentsMapper.selectPage(paymentPage, null);
+            return resultPage.getRecords();
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "分页查询支付记录失败", e);
+        }
+    }
+}

src/main/java/com/qf/backend/service/impl/PermissionsServiceImpl.java

@@ -0,0 +1,275 @@
+package com.qf.backend.service.impl;
+
+import java.util.List;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.qf.backend.common.Result;
+import com.qf.backend.common.ResultUtils;
+import com.qf.backend.entity.Permissions;
+import com.qf.backend.exception.BusinessException;
+import com.qf.backend.exception.ErrorCode;
+import com.qf.backend.mapper.PermissionsMapper;
+import com.qf.backend.service.PermissionsService;
+import com.qf.backend.util.ValidateUtil;
+
+@Service
+public class PermissionsServiceImpl extends ServiceImpl<PermissionsMapper, Permissions> implements PermissionsService {
+
+    private static final Logger logger = LoggerFactory.getLogger(PermissionsServiceImpl.class);
+    
+    @Autowired
+    private PermissionsMapper permissionsMapper;
+
+    // 根据权限编码查询权限
+    @Override
+    public Result<Permissions> getPermissionByCode(String permissionCode) {
+        logger.info("根据权限编码查询权限: {}", permissionCode);
+          
+        try {
+            if (ValidateUtil.isEmpty(permissionCode)) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "权限编码不能为空");
+            }
+            
+            QueryWrapper<Permissions> queryWrapper = new QueryWrapper<Permissions>().eq("permission_code", permissionCode);
+            Permissions permission = permissionsMapper.selectOne(queryWrapper);
+            if (permission == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "权限不存在: " + permissionCode);
+            }
+            return ResultUtils.success(permission);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("查询权限失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询权限失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 创建权限
+    @Override
+    public Result<Boolean> createPermission(Permissions permissions) {
+        logger.info("创建权限: 权限对象");
+          
+        try {
+            // 使用ValidateUtil进行实体验证
+            ValidateUtil.validateEntity(permissions, "permissionCode", "permissionName", "permissionType");
+            
+            int result = permissionsMapper.insert(permissions);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "创建权限失败");
+            }
+            
+            logger.info("权限创建成功");
+            return ResultUtils.success(true);
+        } catch (IllegalArgumentException e) {
+            // 转换为业务异常
+            throw new BusinessException(ErrorCode.INVALID_PARAM, e.getMessage());
+        } catch (IllegalAccessException e) {
+            logger.error("验证权限信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.BUSINESS_ERROR, "验证权限信息失败: " + e.getMessage(), e);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("创建权限失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "创建权限失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 更新权限信息
+    @Override
+    public Result<Boolean> updatePermission(Permissions permissions) {
+        logger.info("更新权限信息: 权限ID = {}", permissions.getId());
+           
+        try {
+            if (permissions == null || permissions.getId() == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "权限信息或权限ID不能为空");
+            }
+            
+            // 检查权限是否存在
+            Permissions existingPermission = getPermissionByIdAndCheckExist(permissions.getId());
+            if (existingPermission == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "权限不存在");
+            }
+            
+            // 使用ValidateUtil进行实体验证
+            ValidateUtil.validateEntity(permissions, "permissionCode", "permissionName", "permissionType");
+            
+            // 更新权限信息
+            int result = permissionsMapper.updateById(permissions);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "更新权限信息失败");
+            }
+            
+            logger.info("权限信息更新成功: 权限ID = {}", permissions.getId());
+            return ResultUtils.success(true);
+        } catch (IllegalArgumentException e) {
+            // 转换为业务异常
+            throw new BusinessException(ErrorCode.INVALID_PARAM, e.getMessage());
+        } catch (IllegalAccessException e) {
+            logger.error("验证权限信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.BUSINESS_ERROR, "验证权限信息失败: " + e.getMessage(), e);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("更新权限信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新权限信息失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 删除权限
+    @Override
+    public Result<Boolean> deletePermission(Long id) {
+        logger.info("删除权限: 权限ID = {}", id);
+          
+        try {
+            if (id == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "权限ID不能为空");
+            }
+            // 检查权限是否存在
+            Permissions permission = getPermissionByIdAndCheckExist(id);
+            if (permission == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "权限不存在");
+            }
+            
+            int result = permissionsMapper.deleteById(id);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "删除权限失败");
+            }
+            
+            logger.info("权限删除成功: 权限ID = {}", id);
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("删除权限失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "删除权限失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 查询所有权限
+    @Override
+    public Result<List<Permissions>> listAllPermissions() {
+        logger.info("查询所有权限列表");
+          
+        try {
+            List<Permissions> permissionsList = permissionsMapper.selectList(null);
+            logger.info("查询到 {} 个权限", permissionsList.size());
+            return ResultUtils.success(permissionsList);
+        } catch (Exception e) {
+            logger.error("查询权限列表失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询权限列表失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 根据权限ID查询权限
+    @Override
+    public Result<Permissions> getPermissionById(Long id) {
+        logger.info("根据ID查询权限: 权限ID = {}", id);
+          
+        try {
+            if (id == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "权限ID不能为空");
+            }
+            
+            Permissions permission = getPermissionByIdAndCheckExist(id);
+            if (permission == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "权限不存在");
+            }
+            
+            return ResultUtils.success(permission);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("查询权限失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询权限失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 批量删除权限
+    @Override
+    public Result<Boolean> batchDeletePermissions(List<Long> ids) {
+        logger.info("批量删除权限: 权限ID列表 = {}", ids);
+          
+        try {
+            if (ids == null || ids.isEmpty()) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "权限ID列表不能为空");
+            }
+            
+            int result = permissionsMapper.deleteBatchIds(ids);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "批量删除权限失败");
+            }
+            
+            logger.info("批量删除权限成功: 删除了 {} 个权限", result);
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("批量删除权限失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "批量删除权限失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 根据菜单ID查询权限
+    @Override
+    public Result<List<Permissions>> listPermissionsByMenuId(Long menuId) {
+        logger.info("根据菜单ID查询权限: 菜单ID = {}", menuId);
+          
+        try {
+            if (menuId == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "菜单ID不能为空");
+            }
+            
+            QueryWrapper<Permissions> queryWrapper = new QueryWrapper<Permissions>().eq("menu_id", menuId);
+            List<Permissions> permissionsList = permissionsMapper.selectList(queryWrapper);
+            logger.info("查询到 {} 个权限", permissionsList.size());
+            return ResultUtils.success(permissionsList);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("根据菜单ID查询权限失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "根据菜单ID查询权限失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 根据权限类型查询权限
+    @Override
+    public Result<List<Permissions>> listPermissionsByType(String permissionType) {
+        logger.info("根据权限类型查询权限: 权限类型 = {}", permissionType);
+          
+        try {
+            if (ValidateUtil.isEmpty(permissionType)) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "权限类型不能为空");
+            }
+            
+            QueryWrapper<Permissions> queryWrapper = new QueryWrapper<Permissions>().eq("permission_type", permissionType);
+            List<Permissions> permissionsList = permissionsMapper.selectList(queryWrapper);
+            logger.info("查询到 {} 个权限", permissionsList.size());
+            return ResultUtils.success(permissionsList);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("根据权限类型查询权限失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "根据权限类型查询权限失败: " + e.getMessage(), e);
+        }
+    }
+
+    /**
+     * 根据权限ID查询权限并检查是否存在
+     * @param id 权限ID
+     * @return 权限对象，如果权限不存在则返回null
+     */
+    private Permissions getPermissionByIdAndCheckExist(Long id) {
+        if (id == null) {
+            return null;
+        }
+        QueryWrapper<Permissions> queryWrapper = new QueryWrapper<Permissions>().eq("id", id);
+        return permissionsMapper.selectOne(queryWrapper);
+    }
+
+}

src/main/java/com/qf/backend/service/impl/ProductAttributeValuesServiceImpl.java

@@ -0,0 +1,213 @@
+package com.qf.backend.service.impl;
+
+import java.util.List;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.qf.backend.common.Result;
+import com.qf.backend.common.ResultUtils;
+import com.qf.backend.entity.ProductAttributeValues;
+import com.qf.backend.exception.BusinessException;
+import com.qf.backend.exception.ErrorCode;
+import com.qf.backend.mapper.ProductAttributeValuesMapper;
+import com.qf.backend.service.ProductAttributeValuesService;
+import com.qf.backend.util.ValidateUtil;
+
+/**
+ * 商品属性值服务实现类
+ */
+@Service
+public class ProductAttributeValuesServiceImpl extends ServiceImpl<ProductAttributeValuesMapper, ProductAttributeValues> implements ProductAttributeValuesService {
+
+    @Autowired
+    private ProductAttributeValuesMapper productAttributeValuesMapper;
+
+    @Override
+    public Result<List<ProductAttributeValues>> getAttributeValuesByProductId(Long productId) {
+        if (ValidateUtil.isEmpty(productId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "商品ID不能为空");
+        }
+        try {
+            List<ProductAttributeValues> attributeValues = productAttributeValuesMapper.selectList(
+                    new QueryWrapper<ProductAttributeValues>().eq("product_id", productId));
+            return ResultUtils.success(attributeValues);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询商品属性值失败", e);
+        }
+    }
+
+    @Override
+    public Result<List<ProductAttributeValues>> getAttributeValuesByAttributeId(Long attributeId) {
+        if (ValidateUtil.isEmpty(attributeId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "属性ID不能为空");
+        }
+        try {
+            List<ProductAttributeValues> attributeValues = productAttributeValuesMapper.selectList(
+                    new QueryWrapper<ProductAttributeValues>().eq("attribute_id", attributeId));
+            return ResultUtils.success(attributeValues);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询属性值失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> createAttributeValue(ProductAttributeValues productAttributeValues) {
+        if (ValidateUtil.isEmpty(productAttributeValues)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "属性值信息不能为空");
+        }
+        if (ValidateUtil.isEmpty(productAttributeValues.getProductId())) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "商品ID不能为空");
+        }
+        if (ValidateUtil.isEmpty(productAttributeValues.getAttributeId())) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "属性ID不能为空");
+        }
+        if (ValidateUtil.isEmpty(productAttributeValues.getAttributeValue())) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "属性值不能为空");
+        }
+        try {
+            int result = productAttributeValuesMapper.insert(productAttributeValues);
+            return ResultUtils.success(result > 0);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "创建属性值失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> updateAttributeValue(ProductAttributeValues productAttributeValues) {
+        if (ValidateUtil.isEmpty(productAttributeValues)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "属性值信息不能为空");
+        }
+        if (ValidateUtil.isEmpty(productAttributeValues.getId())) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "属性值ID不能为空");
+        }
+        if (ValidateUtil.isEmpty(productAttributeValues.getAttributeValue())) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "属性值不能为空");
+        }
+        try {
+            // 检查属性值是否存在
+            ProductAttributeValues existing = productAttributeValuesMapper.selectById(productAttributeValues.getId());
+            if (existing == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "属性值不存在");
+            }
+            int result = productAttributeValuesMapper.updateById(productAttributeValues);
+            return ResultUtils.success(result > 0);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新属性值失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> deleteAttributeValue(Long id) {
+        if (ValidateUtil.isEmpty(id)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "属性值ID不能为空");
+        }
+        try {
+            // 检查属性值是否存在
+            ProductAttributeValues existing = productAttributeValuesMapper.selectById(id);
+            if (existing == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "属性值不存在");
+            }
+            int result = productAttributeValuesMapper.deleteById(id);
+            return ResultUtils.success(result > 0);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "删除属性值失败", e);
+        }
+    }
+
+    @Override
+    public Result<ProductAttributeValues> getAttributeValueById(Long id) {
+        if (ValidateUtil.isEmpty(id)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "属性值ID不能为空");
+        }
+        try {
+            ProductAttributeValues attributeValue = productAttributeValuesMapper.selectById(id);
+            if (attributeValue == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "属性值不存在");
+            }
+            return ResultUtils.success(attributeValue);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询属性值失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> batchCreateAttributeValues(List<ProductAttributeValues> attributeValues) {
+        if (ValidateUtil.isEmpty(attributeValues)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "属性值列表不能为空");
+        }
+        if (attributeValues.isEmpty()) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "属性值列表不能为空");
+        }
+        try {
+            for (ProductAttributeValues attributeValue : attributeValues) {
+                if (ValidateUtil.isEmpty(attributeValue.getProductId())) {
+                    throw new BusinessException(ErrorCode.INVALID_PARAM, "属性值列表中存在商品ID为空的记录");
+                }
+                if (ValidateUtil.isEmpty(attributeValue.getAttributeId())) {
+                    throw new BusinessException(ErrorCode.INVALID_PARAM, "属性值列表中存在属性ID为空的记录");
+                }
+                if (ValidateUtil.isEmpty(attributeValue.getAttributeValue())) {
+                    throw new BusinessException(ErrorCode.INVALID_PARAM, "属性值列表中存在属性值为空的记录");
+                }
+                productAttributeValuesMapper.insert(attributeValue);
+            }
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "批量创建属性值失败", e);
+        }
+    }
+
+    @Override
+    public Result<ProductAttributeValues> getAttributeValueByProductAndAttribute(Long productId, Long attributeId) {
+        if (ValidateUtil.isEmpty(productId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "商品ID不能为空");
+        }
+        if (ValidateUtil.isEmpty(attributeId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "属性ID不能为空");
+        }
+        try {
+            ProductAttributeValues attributeValue = productAttributeValuesMapper.selectOne(
+                    new QueryWrapper<ProductAttributeValues>()
+                            .eq("product_id", productId)
+                            .eq("attribute_id", attributeId));
+            return ResultUtils.success(attributeValue);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询商品属性值失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> deleteAttributeValuesByProductId(Long productId) {
+        if (ValidateUtil.isEmpty(productId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "商品ID不能为空");
+        }
+        try {
+            int result = productAttributeValuesMapper.delete(
+                    new QueryWrapper<ProductAttributeValues>().eq("product_id", productId));
+            return ResultUtils.success(result >= 0);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "删除商品属性值失败", e);
+        }
+    }
+}

src/main/java/com/qf/backend/service/impl/ProductAttributesServiceImpl.java

@@ -0,0 +1,200 @@
+package com.qf.backend.service.impl;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.qf.backend.common.Result;
+import com.qf.backend.common.ResultUtils;
+import com.qf.backend.entity.ProductAttributes;
+import com.qf.backend.exception.BusinessException;
+import com.qf.backend.exception.ErrorCode;
+import com.qf.backend.mapper.ProductAttributesMapper;
+import com.qf.backend.service.ProductAttributesService;
+import com.qf.backend.util.ValidateUtil;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+/**
+ * 商品属性服务实现类
+ */
+@Service
+public class ProductAttributesServiceImpl extends ServiceImpl<ProductAttributesMapper, ProductAttributes> implements ProductAttributesService {
+
+    @Autowired
+    private ProductAttributesMapper productAttributesMapper;
+
+    @Override
+    public Result<List<ProductAttributes>> getAttributesByCategoryId(Long categoryId) {
+        if (ValidateUtil.isEmpty(categoryId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "分类ID不能为空");
+        }
+        try {
+            List<ProductAttributes> attributes = productAttributesMapper.selectList(
+                    new QueryWrapper<ProductAttributes>().eq("category_id", categoryId));
+            return ResultUtils.success(attributes);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询商品属性失败", e);
+        }
+    }
+
+    @Override
+    public Result<List<ProductAttributes>> getAttributesByName(String attributeName) {
+        if (ValidateUtil.isEmpty(attributeName)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "属性名称不能为空");
+        }
+        try {
+            List<ProductAttributes> attributes = productAttributesMapper.selectList(
+                    new QueryWrapper<ProductAttributes>().like("attribute_name", attributeName));
+            return ResultUtils.success(attributes);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询商品属性失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> createAttribute(ProductAttributes productAttributes) {
+        if (ValidateUtil.isEmpty(productAttributes)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "属性信息不能为空");
+        }
+        if (ValidateUtil.isEmpty(productAttributes.getAttributeName())) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "属性名称不能为空");
+        }
+        if (ValidateUtil.isEmpty(productAttributes.getCategoryId())) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "分类ID不能为空");
+        }
+        try {
+            int result = productAttributesMapper.insert(productAttributes);
+            return ResultUtils.success(result > 0);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "创建商品属性失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> updateAttribute(ProductAttributes productAttributes) {
+        if (ValidateUtil.isEmpty(productAttributes)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "属性信息不能为空");
+        }
+        if (ValidateUtil.isEmpty(productAttributes.getId())) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "属性ID不能为空");
+        }
+        if (ValidateUtil.isEmpty(productAttributes.getAttributeName())) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "属性名称不能为空");
+        }
+        try {
+            // 检查属性是否存在
+            ProductAttributes existing = productAttributesMapper.selectById(productAttributes.getId());
+            if (existing == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "属性不存在");
+            }
+            int result = productAttributesMapper.updateById(productAttributes);
+            return ResultUtils.success(result > 0);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新商品属性失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> deleteAttribute(Long id) {
+        if (ValidateUtil.isEmpty(id)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "属性ID不能为空");
+        }
+        try {
+            // 检查属性是否存在
+            ProductAttributes existing = productAttributesMapper.selectById(id);
+            if (existing == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "属性不存在");
+            }
+            int result = productAttributesMapper.deleteById(id);
+            return ResultUtils.success(result > 0);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "删除商品属性失败", e);
+        }
+    }
+
+    @Override
+    public Result<ProductAttributes> getAttributeById(Long id) {
+        if (ValidateUtil.isEmpty(id)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "属性ID不能为空");
+        }
+        try {
+            ProductAttributes attribute = productAttributesMapper.selectById(id);
+            if (attribute == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "属性不存在");
+            }
+            return ResultUtils.success(attribute);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询商品属性失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> batchDeleteAttributes(List<Long> ids) {
+        if (ValidateUtil.isEmpty(ids)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "属性ID列表不能为空");
+        }
+        if (ids.isEmpty()) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "属性ID列表不能为空");
+        }
+        try {
+            // 检查所有属性是否存在
+            for (Long id : ids) {
+                if (ValidateUtil.isEmpty(id)) {
+                    throw new BusinessException(ErrorCode.INVALID_PARAM, "属性ID列表中存在空值");
+                }
+                ProductAttributes existing = productAttributesMapper.selectById(id);
+                if (existing == null) {
+                    throw new BusinessException(ErrorCode.NOT_FOUND, "属性ID为" + id + "的属性不存在");
+                }
+            }
+            int result = productAttributesMapper.deleteBatchIds(ids);
+            return ResultUtils.success(result > 0);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "批量删除商品属性失败", e);
+        }
+    }
+
+    @Override
+    public Result<List<ProductAttributes>> getAttributesByType(String attributeType) {
+        if (ValidateUtil.isEmpty(attributeType)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "属性类型不能为空");
+        }
+        try {
+            List<ProductAttributes> attributes = productAttributesMapper.selectList(
+                    new QueryWrapper<ProductAttributes>().eq("attribute_type", attributeType));
+            return ResultUtils.success(attributes);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询商品属性失败", e);
+        }
+    }
+
+    @Override
+    public Result<List<ProductAttributes>> getAttributesBySearchable(Boolean searchable) {
+        try {
+            List<ProductAttributes> attributes = productAttributesMapper.selectList(
+                    new QueryWrapper<ProductAttributes>().eq("searchable", searchable));
+            return ResultUtils.success(attributes);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询商品属性失败", e);
+        }
+    }
+}

src/main/java/com/qf/backend/service/impl/ProductCategoriesServiceImpl.java

@@ -0,0 +1,240 @@
+package com.qf.backend.service.impl;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.qf.backend.common.Result;
+import com.qf.backend.common.ResultUtils;
+import com.qf.backend.entity.ProductCategories;
+import com.qf.backend.exception.BusinessException;
+import com.qf.backend.exception.ErrorCode;
+import com.qf.backend.mapper.ProductCategoriesMapper;
+import com.qf.backend.service.ProductCategoriesService;
+import com.qf.backend.util.ValidateUtil;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 商品分类服务实现类
+ */
+@Service
+public class ProductCategoriesServiceImpl extends ServiceImpl<ProductCategoriesMapper, ProductCategories> implements ProductCategoriesService {
+
+    @Autowired
+    private ProductCategoriesMapper productCategoriesMapper;
+
+    @Override
+    public Result<ProductCategories> getCategoryByName(String categoryName) {
+        if (ValidateUtil.isEmpty(categoryName)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "分类名称不能为空");
+        }
+        try {
+            ProductCategories category = productCategoriesMapper.selectOne(
+                    new QueryWrapper<ProductCategories>().eq("category_name", categoryName));
+            return ResultUtils.success(category);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询商品分类失败", e);
+        }
+    }
+
+    @Override
+    public Result<List<ProductCategories>> getSubCategoriesByParentId(Long parentId) {
+        try {
+            List<ProductCategories> categories = productCategoriesMapper.selectList(
+                    new QueryWrapper<ProductCategories>().eq("parent_id", parentId));
+            return ResultUtils.success(categories);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询子分类失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> createCategory(ProductCategories productCategories) {
+        if (ValidateUtil.isEmpty(productCategories)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "分类信息不能为空");
+        }
+        if (ValidateUtil.isEmpty(productCategories.getCategoryName())) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "分类名称不能为空");
+        }
+        try {
+            // 检查分类名称是否已存在
+            ProductCategories existing = productCategoriesMapper.selectOne(
+                    new QueryWrapper<ProductCategories>().eq("category_name", productCategories.getCategoryName()));
+            if (existing != null) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "分类名称已存在");
+            }
+            int result = productCategoriesMapper.insert(productCategories);
+            return ResultUtils.success(result > 0);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "创建商品分类失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> updateCategory(ProductCategories productCategories) {
+        if (ValidateUtil.isEmpty(productCategories)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "分类信息不能为空");
+        }
+        if (ValidateUtil.isEmpty(productCategories.getId())) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "分类ID不能为空");
+        }
+        if (ValidateUtil.isEmpty(productCategories.getCategoryName())) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "分类名称不能为空");
+        }
+        try {
+            // 检查分类是否存在
+            ProductCategories existing = productCategoriesMapper.selectById(productCategories.getId());
+            if (existing == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "分类不存在");
+            }
+            // 检查分类名称是否已存在（排除当前分类）
+            ProductCategories nameExists = productCategoriesMapper.selectOne(
+                    new QueryWrapper<ProductCategories>()
+                            .eq("category_name", productCategories.getCategoryName())
+                            .ne("id", productCategories.getId()));
+            if (nameExists != null) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "分类名称已存在");
+            }
+            int result = productCategoriesMapper.updateById(productCategories);
+            return ResultUtils.success(result > 0);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新商品分类失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> deleteCategory(Long id) {
+        if (ValidateUtil.isEmpty(id)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "分类ID不能为空");
+        }
+        try {
+            // 检查分类是否存在
+            ProductCategories existing = productCategoriesMapper.selectById(id);
+            if (existing == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "分类不存在");
+            }
+            // 检查是否有子分类
+            List<ProductCategories> subCategories = productCategoriesMapper.selectList(
+                    new QueryWrapper<ProductCategories>().eq("parent_id", id));
+            if (!subCategories.isEmpty()) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "该分类下存在子分类，无法删除");
+            }
+            int result = productCategoriesMapper.deleteById(id);
+            return ResultUtils.success(result > 0);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "删除商品分类失败", e);
+        }
+    }
+
+    @Override
+    public Result<List<ProductCategories>> listRootCategories() {
+        try {
+            List<ProductCategories> rootCategories = productCategoriesMapper.selectList(
+                    new QueryWrapper<ProductCategories>().isNull("parent_id").or().eq("parent_id", 0));
+            return ResultUtils.success(rootCategories);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询根分类失败", e);
+        }
+    }
+
+    @Override
+    public Result<ProductCategories> getCategoryById(Long id) {
+        if (ValidateUtil.isEmpty(id)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "分类ID不能为空");
+        }
+        try {
+            ProductCategories category = productCategoriesMapper.selectById(id);
+            if (category == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "分类不存在");
+            }
+            return ResultUtils.success(category);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询商品分类失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> batchDeleteCategories(List<Long> ids) {
+        if (ValidateUtil.isEmpty(ids)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "分类ID列表不能为空");
+        }
+        if (ids.isEmpty()) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "分类ID列表不能为空");
+        }
+        try {
+            // 检查所有分类是否存在以及是否有子分类
+            for (Long id : ids) {
+                if (ValidateUtil.isEmpty(id)) {
+                    throw new BusinessException(ErrorCode.INVALID_PARAM, "分类ID列表中存在空值");
+                }
+                ProductCategories existing = productCategoriesMapper.selectById(id);
+                if (existing == null) {
+                    throw new BusinessException(ErrorCode.NOT_FOUND, "分类ID为" + id + "的分类不存在");
+                }
+                // 检查是否有子分类
+                List<ProductCategories> subCategories = productCategoriesMapper.selectList(
+                        new QueryWrapper<ProductCategories>().eq("parent_id", id));
+                if (!subCategories.isEmpty()) {
+                    throw new BusinessException(ErrorCode.BUSINESS_ERROR, "分类ID为" + id + "的分类下存在子分类，无法删除");
+                }
+            }
+            int result = productCategoriesMapper.deleteBatchIds(ids);
+            return ResultUtils.success(result > 0);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "批量删除商品分类失败", e);
+        }
+    }
+
+    @Override
+    public Result<List<ProductCategories>> listAllCategoriesWithTree() {
+        try {
+            // 查询所有分类
+            List<ProductCategories> allCategories = productCategoriesMapper.selectList(null);
+            // 构建树形结构
+            List<ProductCategories> treeCategories = buildCategoryTree(allCategories, null);
+            return ResultUtils.success(treeCategories);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询商品分类树失败", e);
+        }
+    }
+
+    /**
+     * 构建分类树形结构
+     * @param allCategories 所有分类列表
+     * @param parentId 父分类ID
+     * @return 树形分类列表
+     */
+    private List<ProductCategories> buildCategoryTree(List<ProductCategories> allCategories, Long parentId) {
+        List<ProductCategories> tree = new ArrayList<>();
+        for (ProductCategories category : allCategories) {
+            Long categoryParentId = category.getParentId();
+            if ((parentId == null && (categoryParentId == null || categoryParentId == 0)) || (parentId != null && parentId.equals(categoryParentId))) {
+                // 递归查找子分类
+                List<ProductCategories> children = buildCategoryTree(allCategories, category.getId());
+                category.setChildren(children);
+                tree.add(category);
+            }
+        }
+        return tree;
+    }
+}

src/main/java/com/qf/backend/service/impl/ProductImagesServiceImpl.java

@@ -0,0 +1,319 @@
+package com.qf.backend.service.impl;
+
+import java.util.List;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.qf.backend.common.Result;
+import com.qf.backend.common.ResultUtils;
+import com.qf.backend.entity.ProductImages;
+import com.qf.backend.exception.BusinessException;
+import com.qf.backend.exception.ErrorCode;
+import com.qf.backend.mapper.ProductImagesMapper;
+import com.qf.backend.service.ProductImagesService;
+import com.qf.backend.util.ValidateUtil;
+
+@Service
+public class ProductImagesServiceImpl extends ServiceImpl<ProductImagesMapper, ProductImages> implements ProductImagesService {
+
+    private static final Logger logger = LoggerFactory.getLogger(ProductImagesServiceImpl.class);
+    
+    @Autowired
+    private ProductImagesMapper productImagesMapper;
+
+    @Override
+    public Result<List<ProductImages>> getImagesByProductId(Long productId) {
+        logger.info("根据商品ID查询图片: {}", productId);
+          
+        try {
+            if (productId == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "商品ID不能为空");
+            }
+            
+            List<ProductImages> images = productImagesMapper.selectList(new QueryWrapper<ProductImages>().eq("product_id", productId).orderByAsc("sort"));
+            logger.info("查询到 {} 张图片", images.size());
+            return ResultUtils.success(images);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("查询图片失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询图片失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<ProductImages> getMainImageByProductId(Long productId) {
+        logger.info("根据商品ID查询主图: {}", productId);
+          
+        try {
+            if (productId == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "商品ID不能为空");
+            }
+            
+            ProductImages mainImage = productImagesMapper.selectOne(new QueryWrapper<ProductImages>().eq("product_id", productId).eq("is_main", 1));
+            if (mainImage == null) {
+                logger.warn("商品 {} 没有设置主图", productId);
+                return ResultUtils.success(null);
+            }
+            return ResultUtils.success(mainImage);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("查询主图失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询主图失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> createImage(ProductImages productImages) {
+        logger.info("创建商品图片: 商品ID = {}", productImages.getProductId());
+          
+        try {
+            // 使用ValidateUtil进行实体验证
+            ValidateUtil.validateEntity(productImages, "productId", "imageUrl");
+            
+            // 检查是否设置了主图，如果设置了主图，则将其他图片设置为非主图
+            if (productImages.getIsMain() != null && productImages.getIsMain() == 1) {
+                // 将该商品的所有图片设置为非主图
+                productImagesMapper.update(null, new UpdateWrapper<ProductImages>().eq("product_id", productImages.getProductId()).set("is_main", 0));
+            }
+            
+            int result = productImagesMapper.insert(productImages);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "创建商品图片失败");
+            }
+            
+            logger.info("商品图片创建成功");
+            return ResultUtils.success(true);
+        } catch (IllegalArgumentException e) {
+            // 转换为业务异常
+            throw new BusinessException(ErrorCode.INVALID_PARAM, e.getMessage());
+        } catch (IllegalAccessException e) {
+            logger.error("验证图片信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.BUSINESS_ERROR, "验证图片信息失败: " + e.getMessage(), e);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("创建商品图片失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "创建商品图片失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> updateImage(ProductImages productImages) {
+        logger.info("更新图片信息: 图片ID = {}", productImages.getId());
+           
+        try {
+            if (productImages == null || productImages.getId() == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "图片信息或图片ID不能为空");
+            }
+            
+            // 检查图片是否存在
+            ProductImages existingImage = getImageByIdAndCheckExist(productImages.getId());
+            if (existingImage == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "图片不存在");
+            }
+            
+            // 使用ValidateUtil进行实体验证
+            ValidateUtil.validateEntity(productImages, "productId", "imageUrl");
+            
+            // 检查是否设置了主图，如果设置了主图，则将其他图片设置为非主图
+            if (productImages.getIsMain() != null && productImages.getIsMain() == 1) {
+                // 将该商品的所有图片设置为非主图
+                productImagesMapper.update(null, new UpdateWrapper<ProductImages>().eq("product_id", productImages.getProductId()).set("is_main", 0));
+            }
+            
+            // 更新图片信息
+            int result = productImagesMapper.updateById(productImages);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "更新图片信息失败");
+            }
+            
+            logger.info("图片信息更新成功: 图片ID = {}", productImages.getId());
+            return ResultUtils.success(true);
+        } catch (IllegalArgumentException e) {
+            // 转换为业务异常
+            throw new BusinessException(ErrorCode.INVALID_PARAM, e.getMessage());
+        } catch (IllegalAccessException e) {
+            logger.error("验证图片信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.BUSINESS_ERROR, "验证图片信息失败: " + e.getMessage(), e);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("更新图片信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新图片信息失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> deleteImage(Long id) {
+        logger.info("删除图片: 图片ID = {}", id);
+          
+        try {
+            if (id == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "图片ID不能为空");
+            }
+            // 检查图片是否存在
+            ProductImages image = getImageByIdAndCheckExist(id);
+            if (image == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "图片不存在");
+            }
+            
+            int result = productImagesMapper.deleteById(id);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "删除图片失败");
+            }
+            
+            logger.info("图片删除成功: 图片ID = {}", id);
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("删除图片失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "删除图片失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<ProductImages> getImageById(Long id) {
+        logger.info("根据ID查询图片: 图片ID = {}", id);
+          
+        try {
+            if (id == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "图片ID不能为空");
+            }
+            
+            ProductImages image = getImageByIdAndCheckExist(id);
+            if (image == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "图片不存在");
+            }
+            
+            return ResultUtils.success(image);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("查询图片失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询图片失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> batchCreateImages(List<ProductImages> images) {
+        logger.info("批量创建商品图片: 图片数量 = {}", images.size());
+          
+        try {
+            if (images == null || images.isEmpty()) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "图片列表不能为空");
+            }
+            
+            // 批量创建图片
+            for (ProductImages image : images) {
+                // 使用ValidateUtil进行实体验证
+                ValidateUtil.validateEntity(image, "productId", "imageUrl");
+                
+                // 检查是否设置了主图，如果设置了主图，则将其他图片设置为非主图
+                if (image.getIsMain() != null && image.getIsMain() == 1) {
+                    // 将该商品的所有图片设置为非主图
+                    productImagesMapper.update(null, new UpdateWrapper<ProductImages>().eq("product_id", image.getProductId()).set("is_main", 0));
+                }
+                
+                productImagesMapper.insert(image);
+            }
+            
+            logger.info("批量创建商品图片成功: 图片数量 = {}", images.size());
+            return ResultUtils.success(true);
+        } catch (IllegalArgumentException e) {
+            // 转换为业务异常
+            throw new BusinessException(ErrorCode.INVALID_PARAM, e.getMessage());
+        } catch (IllegalAccessException e) {
+            logger.error("验证图片信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.BUSINESS_ERROR, "验证图片信息失败: " + e.getMessage(), e);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("批量创建商品图片失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "批量创建商品图片失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> deleteImagesByProductId(Long productId) {
+        logger.info("根据商品ID删除所有图片: {}", productId);
+          
+        try {
+            if (productId == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "商品ID不能为空");
+            }
+            
+            int result = productImagesMapper.delete(new QueryWrapper<ProductImages>().eq("product_id", productId));
+            logger.info("删除了 {} 张图片", result);
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("根据商品ID删除所有图片失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "根据商品ID删除所有图片失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> setMainImage(Long productId, Long imageId) {
+        logger.info("设置主图: 商品ID = {}, 图片ID = {}", productId, imageId);
+          
+        try {
+            if (productId == null || imageId == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "商品ID和图片ID不能为空");
+            }
+            
+            // 检查图片是否存在
+            ProductImages image = getImageByIdAndCheckExist(imageId);
+            if (image == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "图片不存在");
+            }
+            
+            // 检查图片是否属于该商品
+            if (!image.getProductId().equals(productId)) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "图片不属于该商品");
+            }
+            
+            // 将该商品的所有图片设置为非主图
+            productImagesMapper.update(null, new UpdateWrapper<ProductImages>().eq("product_id", productId).set("is_main", 0));
+            
+            // 将指定图片设置为主图
+            ProductImages mainImage = new ProductImages();
+            mainImage.setId(imageId);
+            mainImage.setIsMain(1);
+            int result = productImagesMapper.updateById(mainImage);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "设置主图失败");
+            }
+            
+            logger.info("主图设置成功: 商品ID = {}, 图片ID = {}", productId, imageId);
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("设置主图失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "设置主图失败: " + e.getMessage(), e);
+        }
+    }
+
+    /**
+     * 根据图片ID查询图片并检查是否存在
+     * @param id 图片ID
+     * @return 图片对象，如果图片不存在则返回null
+     */
+    private ProductImages getImageByIdAndCheckExist(Long id) {
+        if (id == null) {
+            return null;
+        }
+        QueryWrapper<ProductImages> queryWrapper = new QueryWrapper<ProductImages>().eq("id", id);
+        return productImagesMapper.selectOne(queryWrapper);
+    }
+}

src/main/java/com/qf/backend/service/impl/ProductInventoriesServiceImpl.java

@@ -0,0 +1,371 @@
+package com.qf.backend.service.impl;
+
+import java.util.List;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.qf.backend.common.Result;
+import com.qf.backend.common.ResultUtils;
+import com.qf.backend.entity.ProductInventories;
+import com.qf.backend.exception.BusinessException;
+import com.qf.backend.exception.ErrorCode;
+import com.qf.backend.mapper.ProductInventoriesMapper;
+import com.qf.backend.service.ProductInventoriesService;
+import com.qf.backend.util.ValidateUtil;
+
+@Service
+public class ProductInventoriesServiceImpl extends ServiceImpl<ProductInventoriesMapper, ProductInventories> implements ProductInventoriesService {
+
+    private static final Logger logger = LoggerFactory.getLogger(ProductInventoriesServiceImpl.class);
+    
+    @Autowired
+    private ProductInventoriesMapper productInventoriesMapper;
+
+    @Override
+    public Result<List<ProductInventories>> getInventoriesByProductId(Long productId) {
+        logger.info("根据商品ID查询库存: {}", productId);
+          
+        try {
+            if (productId == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "商品ID不能为空");
+            }
+            
+            List<ProductInventories> inventories = productInventoriesMapper.selectList(new QueryWrapper<ProductInventories>().eq("product_id", productId));
+            logger.info("查询到 {} 条库存记录", inventories.size());
+            return ResultUtils.success(inventories);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("查询库存失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询库存失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<ProductInventories> getInventoryBySkuId(Long skuId) {
+        logger.info("根据SKU ID查询库存: {}", skuId);
+          
+        try {
+            if (skuId == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "SKU ID不能为空");
+            }
+            
+            ProductInventories inventory = productInventoriesMapper.selectOne(new QueryWrapper<ProductInventories>().eq("sku_id", skuId));
+            if (inventory == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "库存不存在: SKU ID = " + skuId);
+            }
+            
+            return ResultUtils.success(inventory);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("查询库存失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询库存失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> createInventory(ProductInventories productInventories) {
+        logger.info("创建库存记录: SKU ID = {}", productInventories.getSkuId());
+          
+        try {
+            // 使用ValidateUtil进行实体验证
+            ValidateUtil.validateEntity(productInventories, "skuId", "currentStock");
+            
+            // 检查库存数量是否合法
+            if (productInventories.getCurrentStock() < 0) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "库存数量不能为负数");
+            }
+            
+            // 检查是否已存在该SKU的库存记录
+            ProductInventories existingInventory = productInventoriesMapper.selectOne(new QueryWrapper<ProductInventories>().eq("sku_id", productInventories.getSkuId()));
+            if (existingInventory != null) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "该SKU的库存记录已存在");
+            }
+            
+            int result = productInventoriesMapper.insert(productInventories);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "创建库存记录失败");
+            }
+            
+            logger.info("库存记录创建成功");
+            return ResultUtils.success(true);
+        } catch (IllegalArgumentException e) {
+            // 转换为业务异常
+            throw new BusinessException(ErrorCode.INVALID_PARAM, e.getMessage());
+        } catch (IllegalAccessException e) {
+            logger.error("验证库存信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.BUSINESS_ERROR, "验证库存信息失败: " + e.getMessage(), e);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("创建库存记录失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "创建库存记录失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> updateInventory(ProductInventories productInventories) {
+        logger.info("更新库存信息: 库存ID = {}", productInventories.getId());
+           
+        try {
+            if (productInventories == null || productInventories.getId() == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "库存信息或库存ID不能为空");
+            }
+            
+            // 检查库存是否存在
+            ProductInventories existingInventory = getInventoryByIdAndCheckExist(productInventories.getId());
+            if (existingInventory == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "库存不存在");
+            }
+            
+            // 使用ValidateUtil进行实体验证
+            ValidateUtil.validateEntity(productInventories, "skuId", "currentStock");
+            
+            // 检查库存数量是否合法
+            if (productInventories.getCurrentStock() < 0) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "库存数量不能为负数");
+            }
+            
+            // 更新库存信息
+            int result = productInventoriesMapper.updateById(productInventories);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "更新库存信息失败");
+            }
+            
+            logger.info("库存信息更新成功: 库存ID = {}", productInventories.getId());
+            return ResultUtils.success(true);
+        } catch (IllegalArgumentException e) {
+            // 转换为业务异常
+            throw new BusinessException(ErrorCode.INVALID_PARAM, e.getMessage());
+        } catch (IllegalAccessException e) {
+            logger.error("验证库存信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.BUSINESS_ERROR, "验证库存信息失败: " + e.getMessage(), e);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("更新库存信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新库存信息失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> deleteInventory(Long id) {
+        logger.info("删除库存记录: 库存ID = {}", id);
+          
+        try {
+            if (id == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "库存ID不能为空");
+            }
+            // 检查库存是否存在
+            ProductInventories inventory = getInventoryByIdAndCheckExist(id);
+            if (inventory == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "库存不存在");
+            }
+            
+            int result = productInventoriesMapper.deleteById(id);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "删除库存记录失败");
+            }
+            
+            logger.info("库存记录删除成功: 库存ID = {}", id);
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("删除库存记录失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "删除库存记录失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<ProductInventories> getInventoryById(Long id) {
+        logger.info("根据ID查询库存: 库存ID = {}", id);
+          
+        try {
+            if (id == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "库存ID不能为空");
+            }
+            
+            ProductInventories inventory = getInventoryByIdAndCheckExist(id);
+            if (inventory == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "库存不存在");
+            }
+            
+            return ResultUtils.success(inventory);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("查询库存失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询库存失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> increaseInventory(Long skuId, Integer quantity) {
+        logger.info("增加库存: SKU ID = {}, 数量 = {}", skuId, quantity);
+          
+        try {
+            if (skuId == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "SKU ID不能为空");
+            }
+            if (quantity == null || quantity <= 0) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "增加数量必须大于0");
+            }
+            
+            // 检查库存是否存在
+            ProductInventories inventory = productInventoriesMapper.selectOne(new QueryWrapper<ProductInventories>().eq("sku_id", skuId));
+            if (inventory == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "库存不存在: SKU ID = " + skuId);
+            }
+            
+            // 增加库存
+            inventory.setCurrentStock(inventory.getCurrentStock() + quantity);
+            int result = productInventoriesMapper.updateById(inventory);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "增加库存失败");
+            }
+            
+            logger.info("库存增加成功: SKU ID = {}, 新库存 = {}", skuId, inventory.getCurrentStock());
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("增加库存失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "增加库存失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> decreaseInventory(Long skuId, Integer quantity) {
+        logger.info("减少库存: SKU ID = {}, 数量 = {}", skuId, quantity);
+          
+        try {
+            if (skuId == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "SKU ID不能为空");
+            }
+            if (quantity == null || quantity <= 0) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "减少数量必须大于0");
+            }
+            
+            // 检查库存是否存在
+            ProductInventories inventory = productInventoriesMapper.selectOne(new QueryWrapper<ProductInventories>().eq("sku_id", skuId));
+            if (inventory == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "库存不存在: SKU ID = " + skuId);
+            }
+            
+            // 检查库存是否充足
+            if (inventory.getCurrentStock() < quantity) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "库存不足: 当前库存 = " + inventory.getCurrentStock() + ", 需要 = " + quantity);
+            }
+            
+            // 减少库存
+            inventory.setCurrentStock(inventory.getCurrentStock() - quantity);
+            int result = productInventoriesMapper.updateById(inventory);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "减少库存失败");
+            }
+            
+            logger.info("库存减少成功: SKU ID = {}, 新库存 = {}", skuId, inventory.getCurrentStock());
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("减少库存失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "减少库存失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> checkInventorySufficient(Long skuId, Integer quantity) {
+        logger.info("检查库存是否充足: SKU ID = {}, 需要数量 = {}", skuId, quantity);
+          
+        try {
+            if (skuId == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "SKU ID不能为空");
+            }
+            if (quantity == null || quantity <= 0) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "需要数量必须大于0");
+            }
+            
+            // 检查库存是否存在
+            ProductInventories inventory = productInventoriesMapper.selectOne(new QueryWrapper<ProductInventories>().eq("sku_id", skuId));
+            if (inventory == null) {
+                logger.warn("库存不存在: SKU ID = {}", skuId);
+                return ResultUtils.success(false);
+            }
+            
+            boolean isSufficient = inventory.getCurrentStock() >= quantity;
+            logger.info("库存检查结果: SKU ID = {}, 当前库存 = {}, 需要数量 = {}, 是否充足 = {}", skuId, inventory.getCurrentStock(), quantity, isSufficient);
+            return ResultUtils.success(isSufficient);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("检查库存是否充足失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "检查库存是否充足失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> batchUpdateInventory(List<ProductInventories> inventoryUpdates) {
+        logger.info("批量更新库存: 更新数量 = {}", inventoryUpdates.size());
+          
+        try {
+            if (inventoryUpdates == null || inventoryUpdates.isEmpty()) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "库存更新列表不能为空");
+            }
+            
+            // 批量更新库存
+            for (ProductInventories inventory : inventoryUpdates) {
+                // 使用ValidateUtil进行实体验证
+                ValidateUtil.validateEntity(inventory, "id", "currentStock");
+                
+                // 检查库存数量是否合法
+                if (inventory.getCurrentStock() < 0) {
+                    throw new BusinessException(ErrorCode.INVALID_PARAM, "库存数量不能为负数");
+                }
+                
+                // 检查库存是否存在
+                ProductInventories existingInventory = getInventoryByIdAndCheckExist(inventory.getId());
+                if (existingInventory == null) {
+                    throw new BusinessException(ErrorCode.NOT_FOUND, "库存不存在: 库存ID = " + inventory.getId());
+                }
+                
+                // 更新库存
+                productInventoriesMapper.updateById(inventory);
+            }
+            
+            logger.info("批量更新库存成功: 更新数量 = {}", inventoryUpdates.size());
+            return ResultUtils.success(true);
+        } catch (IllegalArgumentException e) {
+            // 转换为业务异常
+            throw new BusinessException(ErrorCode.INVALID_PARAM, e.getMessage());
+        } catch (IllegalAccessException e) {
+            logger.error("验证库存信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.BUSINESS_ERROR, "验证库存信息失败: " + e.getMessage(), e);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("批量更新库存失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "批量更新库存失败: " + e.getMessage(), e);
+        }
+    }
+
+    /**
+     * 根据库存ID查询库存并检查是否存在
+     * @param id 库存ID
+     * @return 库存对象，如果库存不存在则返回null
+     */
+    private ProductInventories getInventoryByIdAndCheckExist(Long id) {
+        if (id == null) {
+            return null;
+        }
+        QueryWrapper<ProductInventories> queryWrapper = new QueryWrapper<ProductInventories>().eq("id", id);
+        return productInventoriesMapper.selectOne(queryWrapper);
+    }
+}

src/main/java/com/qf/backend/service/impl/ProductSkusServiceImpl.java

@@ -0,0 +1,332 @@
+package com.qf.backend.service.impl;
+
+import java.util.List;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.qf.backend.common.Result;
+import com.qf.backend.common.ResultUtils;
+import com.qf.backend.entity.ProductSkus;
+import com.qf.backend.exception.BusinessException;
+import com.qf.backend.exception.ErrorCode;
+import com.qf.backend.mapper.ProductSkusMapper;
+import com.qf.backend.service.ProductSkusService;
+import com.qf.backend.util.ValidateUtil;
+
+@Service
+public class ProductSkusServiceImpl extends ServiceImpl<ProductSkusMapper, ProductSkus> implements ProductSkusService {
+
+    private static final Logger logger = LoggerFactory.getLogger(ProductSkusServiceImpl.class);
+    
+    @Autowired
+    private ProductSkusMapper productSkusMapper;
+
+    @Override
+    public Result<List<ProductSkus>> getSkusByProductId(Long productId) {
+        logger.info("根据商品ID查询SKU: {}", productId);
+          
+        try {
+            if (productId == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "商品ID不能为空");
+            }
+            
+            List<ProductSkus> skus = productSkusMapper.selectList(new QueryWrapper<ProductSkus>().eq("product_id", productId));
+            logger.info("查询到 {} 个SKU", skus.size());
+            return ResultUtils.success(skus);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("查询SKU失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询SKU失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<ProductSkus> getSkuByCode(String skuCode) {
+        logger.info("根据SKU编码查询SKU: {}", skuCode);
+          
+        try {
+            if (ValidateUtil.isEmpty(skuCode)) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "SKU编码不能为空");
+            }
+            
+            ProductSkus sku = productSkusMapper.selectOne(new QueryWrapper<ProductSkus>().eq("sku_code", skuCode));
+            if (sku == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "SKU不存在: " + skuCode);
+            }
+            return ResultUtils.success(sku);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("查询SKU失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询SKU失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> createSku(ProductSkus productSkus) {
+        logger.info("创建SKU: SKU编码 = {}", productSkus.getSkuCode());
+          
+        try {
+            // 使用ValidateUtil进行实体验证
+            ValidateUtil.validateEntity(productSkus, "productId", "skuCode", "skuSpecs", "price", "stock");
+            
+            // 检查SKU编码是否已存在
+            ProductSkus existingSku = productSkusMapper.selectOne(new QueryWrapper<ProductSkus>().eq("sku_code", productSkus.getSkuCode()));
+            if (existingSku != null) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "SKU编码已存在");
+            }
+            
+            int result = productSkusMapper.insert(productSkus);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "创建SKU失败");
+            }
+            
+            logger.info("SKU创建成功");
+            return ResultUtils.success(true);
+        } catch (IllegalArgumentException e) {
+            // 转换为业务异常
+            throw new BusinessException(ErrorCode.INVALID_PARAM, e.getMessage());
+        } catch (IllegalAccessException e) {
+            logger.error("验证SKU信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.BUSINESS_ERROR, "验证SKU信息失败: " + e.getMessage(), e);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("创建SKU失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "创建SKU失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> updateSku(ProductSkus productSkus) {
+        logger.info("更新SKU信息: SKU ID = {}", productSkus.getId());
+           
+        try {
+            if (productSkus == null || productSkus.getId() == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "SKU信息或SKU ID不能为空");
+            }
+            
+            // 检查SKU是否存在
+            ProductSkus existingSku = getSkuByIdAndCheckExist(productSkus.getId());
+            if (existingSku == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "SKU不存在");
+            }
+            
+            // 使用ValidateUtil进行实体验证
+            ValidateUtil.validateEntity(productSkus, "productId", "skuCode", "skuSpecs", "price", "stock");
+            
+            // 检查SKU编码是否已存在（排除当前SKU）
+            ProductSkus skuWithSameCode = productSkusMapper.selectOne(new QueryWrapper<ProductSkus>().eq("sku_code", productSkus.getSkuCode()).ne("id", productSkus.getId()));
+            if (skuWithSameCode != null) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "SKU编码已存在");
+            }
+            
+            // 更新SKU信息
+            int result = productSkusMapper.updateById(productSkus);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "更新SKU信息失败");
+            }
+            
+            logger.info("SKU信息更新成功: SKU ID = {}", productSkus.getId());
+            return ResultUtils.success(true);
+        } catch (IllegalArgumentException e) {
+            // 转换为业务异常
+            throw new BusinessException(ErrorCode.INVALID_PARAM, e.getMessage());
+        } catch (IllegalAccessException e) {
+            logger.error("验证SKU信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.BUSINESS_ERROR, "验证SKU信息失败: " + e.getMessage(), e);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("更新SKU信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新SKU信息失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> deleteSku(Long id) {
+        logger.info("删除SKU: SKU ID = {}", id);
+          
+        try {
+            if (id == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "SKU ID不能为空");
+            }
+            // 检查SKU是否存在
+            ProductSkus sku = getSkuByIdAndCheckExist(id);
+            if (sku == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "SKU不存在");
+            }
+            
+            int result = productSkusMapper.deleteById(id);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "删除SKU失败");
+            }
+            
+            logger.info("SKU删除成功: SKU ID = {}", id);
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("删除SKU失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "删除SKU失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<ProductSkus> getSkuById(Long id) {
+        logger.info("根据ID查询SKU: SKU ID = {}", id);
+          
+        try {
+            if (id == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "SKU ID不能为空");
+            }
+            
+            ProductSkus sku = getSkuByIdAndCheckExist(id);
+            if (sku == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "SKU不存在");
+            }
+            
+            return ResultUtils.success(sku);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("查询SKU失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询SKU失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> batchCreateSkus(List<ProductSkus> skus) {
+        logger.info("批量创建SKU: SKU数量 = {}", skus.size());
+          
+        try {
+            if (skus == null || skus.isEmpty()) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "SKU列表不能为空");
+            }
+            
+            // 批量创建SKU
+            for (ProductSkus sku : skus) {
+                // 使用ValidateUtil进行实体验证
+                ValidateUtil.validateEntity(sku, "productId", "skuCode", "skuSpecs", "price", "stock");
+                
+                // 检查SKU编码是否已存在
+                ProductSkus existingSku = productSkusMapper.selectOne(new QueryWrapper<ProductSkus>().eq("sku_code", sku.getSkuCode()));
+                if (existingSku != null) {
+                    throw new BusinessException(ErrorCode.BUSINESS_ERROR, "SKU编码已存在: " + sku.getSkuCode());
+                }
+                
+                productSkusMapper.insert(sku);
+            }
+            
+            logger.info("批量创建SKU成功: SKU数量 = {}", skus.size());
+            return ResultUtils.success(true);
+        } catch (IllegalArgumentException e) {
+            // 转换为业务异常
+            throw new BusinessException(ErrorCode.INVALID_PARAM, e.getMessage());
+        } catch (IllegalAccessException e) {
+            logger.error("验证SKU信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.BUSINESS_ERROR, "验证SKU信息失败: " + e.getMessage(), e);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("批量创建SKU失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "批量创建SKU失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> deleteSkusByProductId(Long productId) {
+        logger.info("根据商品ID删除所有SKU: {}", productId);
+          
+        try {
+            if (productId == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "商品ID不能为空");
+            }
+            
+            int result = productSkusMapper.delete(new QueryWrapper<ProductSkus>().eq("product_id", productId));
+            logger.info("删除了 {} 个SKU", result);
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("根据商品ID删除所有SKU失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "根据商品ID删除所有SKU失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> updateSkuStock(Long skuId, Integer quantity) {
+        logger.info("更新SKU库存: SKU ID = {}, 库存数量 = {}", skuId, quantity);
+          
+        try {
+            if (skuId == null || quantity == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "SKU ID和库存数量不能为空");
+            }
+            
+            // 检查库存数量是否合法
+            if (quantity < 0) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "库存数量不能为负数");
+            }
+            
+            // 检查SKU是否存在
+            ProductSkus sku = getSkuByIdAndCheckExist(skuId);
+            if (sku == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "SKU不存在");
+            }
+            
+            // 更新库存
+            sku.setStock(quantity);
+            int result = productSkusMapper.updateById(sku);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "更新SKU库存失败");
+            }
+            
+            logger.info("SKU库存更新成功: SKU ID = {}, 新库存 = {}", skuId, quantity);
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("更新SKU库存失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新SKU库存失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<List<ProductSkus>> batchGetSkus(List<Long> skuIds) {
+        logger.info("批量查询SKU: SKU ID列表 = {}", skuIds);
+          
+        try {
+            if (skuIds == null || skuIds.isEmpty()) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "SKU ID列表不能为空");
+            }
+            
+            List<ProductSkus> skus = productSkusMapper.selectBatchIds(skuIds);
+            logger.info("查询到 {} 个SKU", skus.size());
+            return ResultUtils.success(skus);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("批量查询SKU失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "批量查询SKU失败: " + e.getMessage(), e);
+        }
+    }
+
+    /**
+     * 根据SKU ID查询SKU并检查是否存在
+     * @param id SKU ID
+     * @return SKU对象，如果SKU不存在则返回null
+     */
+    private ProductSkus getSkuByIdAndCheckExist(Long id) {
+        if (id == null) {
+            return null;
+        }
+        QueryWrapper<ProductSkus> queryWrapper = new QueryWrapper<ProductSkus>().eq("id", id);
+        return productSkusMapper.selectOne(queryWrapper);
+    }
+}

src/main/java/com/qf/backend/service/impl/ProductsServiceImpl.java

@@ -0,0 +1,248 @@
+package com.qf.backend.service.impl;
+
+import java.util.List;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.qf.backend.common.Result;
+import com.qf.backend.common.ResultUtils;
+import com.qf.backend.entity.Products;
+import com.qf.backend.exception.BusinessException;
+import com.qf.backend.exception.ErrorCode;
+import com.qf.backend.mapper.ProductsMapper;
+import com.qf.backend.service.ProductsService;
+import com.qf.backend.util.ValidateUtil;
+
+/**
+ * 商品服务实现类
+ */
+@Service
+public class ProductsServiceImpl extends ServiceImpl<ProductsMapper, Products> implements ProductsService {
+
+    @Autowired
+    private ProductsMapper productsMapper;
+
+    @Override
+    public Result<List<Products>> getProductsByName(String productName) {
+        if (ValidateUtil.isEmpty(productName)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "商品名称不能为空");
+        }
+        try {
+            List<Products> products = productsMapper.selectList(
+                    new QueryWrapper<Products>().like("product_name", productName));
+            return ResultUtils.success(products);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询商品失败", e);
+        }
+    }
+
+    @Override
+    public Result<List<Products>> getProductsByCategoryId(Long categoryId) {
+        if (ValidateUtil.isEmpty(categoryId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "分类ID不能为空");
+        }
+        try {
+            List<Products> products = productsMapper.selectList(
+                    new QueryWrapper<Products>().eq("category_id", categoryId));
+            return ResultUtils.success(products);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询商品失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> createProduct(Products products) {
+        if (ValidateUtil.isEmpty(products)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "商品信息不能为空");
+        }
+        if (ValidateUtil.isEmpty(products.getProductName())) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "商品名称不能为空");
+        }
+        if (products.getShopId() == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "店铺ID不能为空");
+        }
+        if (products.getCategoryId() == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "分类ID不能为空");
+        }
+        if (products.getOriginalPrice() == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "商品原价不能为空");
+        }
+        try {
+            int result = productsMapper.insert(products);
+            return ResultUtils.success(result > 0);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "创建商品失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> updateProduct(Products products) {
+        if (ValidateUtil.isEmpty(products)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "商品信息不能为空");
+        }
+        if (products.getId() == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "商品ID不能为空");
+        }
+        if (ValidateUtil.isEmpty(products.getProductName())) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "商品名称不能为空");
+        }
+        try {
+            // 检查商品是否存在
+            Products existing = productsMapper.selectById(products.getId());
+            if (existing == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "商品不存在");
+            }
+            int result = productsMapper.updateById(products);
+            return ResultUtils.success(result > 0);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新商品失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> deleteProduct(Long id) {
+        if (ValidateUtil.isEmpty(id)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "商品ID不能为空");
+        }
+        try {
+            // 检查商品是否存在
+            Products existing = productsMapper.selectById(id);
+            if (existing == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "商品不存在");
+            }
+            int result = productsMapper.deleteById(id);
+            return ResultUtils.success(result > 0);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "删除商品失败", e);
+        }
+    }
+
+    @Override
+    public Result<Products> getProductById(Long id) {
+        if (ValidateUtil.isEmpty(id)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "商品ID不能为空");
+        }
+        try {
+            Products product = productsMapper.selectById(id);
+            if (product == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "商品不存在");
+            }
+            return ResultUtils.success(product);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询商品失败", e);
+        }
+    }
+
+    @Override
+    public Result<List<Products>> listProductsByPage(int page, int size) {
+        if (page < 1) {
+            throw new BusinessException(ErrorCode.INVALID_PARAM, "页码不能小于1");
+        }
+        if (size < 1 || size > 100) {
+            throw new BusinessException(ErrorCode.INVALID_PARAM, "每页数量必须在1-100之间");
+        }
+        try {
+            Page<Products> productPage = new Page<>(page, size);
+            Page<Products> resultPage = productsMapper.selectPage(productPage, null);
+            return ResultUtils.success(resultPage.getRecords());
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "分页查询商品失败", e);
+        }
+    }
+
+    @Override
+    public Result<List<Products>> getProductsByShopId(Long shopId) {
+        if (ValidateUtil.isEmpty(shopId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "店铺ID不能为空");
+        }
+        try {
+            List<Products> products = productsMapper.selectList(
+                    new QueryWrapper<Products>().eq("shop_id", shopId));
+            return ResultUtils.success(products);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询商品失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> batchUpdateProductStatus(List<Long> ids, Integer status) {
+        if (ValidateUtil.isEmpty(ids)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "商品ID列表不能为空");
+        }
+        if (ids.isEmpty()) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "商品ID列表不能为空");
+        }
+        if (ValidateUtil.isEmpty(status)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "商品状态不能为空");
+        }
+        try {
+            // 检查所有商品是否存在
+            for (Long id : ids) {
+                if (ValidateUtil.isEmpty(id)) {
+                    throw new BusinessException(ErrorCode.INVALID_PARAM, "商品ID列表中存在空值");
+                }
+                Products existing = productsMapper.selectById(id);
+                if (existing == null) {
+                    throw new BusinessException(ErrorCode.NOT_FOUND, "商品ID为" + id + "的商品不存在");
+                }
+            }
+            // 批量更新状态
+            for (Long id : ids) {
+                Products product = new Products();
+                product.setId(id);
+                product.setStatus(status);
+                productsMapper.updateById(product);
+            }
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "批量更新商品状态失败", e);
+        }
+    }
+
+    @Override
+    public Result<List<Products>> searchProducts(String keyword, int page, int size) {
+        if (ValidateUtil.isEmpty(keyword)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "搜索关键词不能为空");
+        }
+        if (page < 1) {
+            throw new BusinessException(ErrorCode.INVALID_PARAM, "页码不能小于1");
+        }
+        if (size < 1 || size > 100) {
+            throw new BusinessException(ErrorCode.INVALID_PARAM, "每页数量必须在1-100之间");
+        }
+        try {
+            Page<Products> productPage = new Page<>(page, size);
+            QueryWrapper<Products> queryWrapper = new QueryWrapper<>();
+            queryWrapper.like("product_name", keyword)
+                    .or().like("description", keyword);
+            Page<Products> resultPage = productsMapper.selectPage(productPage, queryWrapper);
+            return ResultUtils.success(resultPage.getRecords());
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "搜索商品失败", e);
+        }
+    }
+}

src/main/java/com/qf/backend/service/impl/RefundsServiceImpl.java

@@ -0,0 +1,215 @@
+package com.qf.backend.service.impl;
+
+import java.util.List;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.qf.backend.entity.Refunds;
+import com.qf.backend.exception.BusinessException;
+import com.qf.backend.exception.ErrorCode;
+import com.qf.backend.mapper.RefundsMapper;
+import com.qf.backend.service.RefundsService;
+import com.qf.backend.util.RefundNumberFenerator;
+import com.qf.backend.util.ValidateUtil;
+
+/**
+ * 退款服务实现类
+ */
+@Service
+public class RefundsServiceImpl extends ServiceImpl<RefundsMapper, Refunds> implements RefundsService {
+
+    @Autowired
+    private RefundsMapper refundsMapper;
+
+    @Override
+    public List<Refunds> getRefundsByOrderId(Long orderId) {
+        if (ValidateUtil.isEmpty(orderId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单ID不能为空");
+        }
+        try {
+            return refundsMapper.selectList(
+                    new QueryWrapper<Refunds>().eq("order_id", orderId));
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询退款记录失败", e);
+        }
+    }
+
+    @Override
+    public Refunds getRefundByNumber(String refundNumber) {
+        if (ValidateUtil.isEmpty(refundNumber)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "退款单号不能为空");
+        }
+        try {
+            return refundsMapper.selectOne(
+                    new QueryWrapper<Refunds>().eq("refund_number", refundNumber));
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询退款记录失败", e);
+        }
+    }
+
+    @Override
+    public boolean createRefund(Refunds refunds) {
+        if (ValidateUtil.isEmpty(refunds)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "退款信息不能为空");
+        }
+        if (ValidateUtil.isEmpty(refunds.getOrderId())) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "订单ID不能为空");
+        }
+        if (refunds.getRefundAmount() == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "退款金额不能为空");
+        }
+        // 生成退款单号 基于时间戳 + 随机数 / 序列号（最常用）
+        refunds.setRefundNo(RefundNumberFenerator.generateRefundNumber());
+        try {
+            int result = refundsMapper.insert(refunds);
+            return result > 0;
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "创建退款记录失败", e);
+        }
+    }
+
+    @Override
+    public boolean updateRefund(Refunds refunds) {
+        if (ValidateUtil.isEmpty(refunds)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "退款信息不能为空");
+        }
+        if (ValidateUtil.isEmpty(refunds.getId())) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "退款ID不能为空");
+        }
+        try {
+            // 检查退款记录是否存在
+            Refunds existing = refundsMapper.selectById(refunds.getId());
+            if (existing == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "退款记录不存在");
+            }
+            int result = refundsMapper.updateById(refunds);
+            return result > 0;
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新退款记录失败", e);
+        }
+    }
+
+    @Override
+    public boolean deleteRefund(Long id) {
+        if (ValidateUtil.isEmpty(id)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "退款ID不能为空");
+        }
+        try {
+            // 检查退款记录是否存在
+            Refunds existing = refundsMapper.selectById(id);
+            if (existing == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "退款记录不存在");
+            }
+            int result = refundsMapper.deleteById(id);
+            return result > 0;
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "删除退款记录失败", e);
+        }
+    }
+
+    @Override
+    public Refunds getRefundById(Long id) {
+        if (ValidateUtil.isEmpty(id)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "退款ID不能为空");
+        }
+        try {
+            Refunds refund = refundsMapper.selectById(id);
+            if (refund == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "退款记录不存在");
+            }
+            return refund;
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询退款记录失败", e);
+        }
+    }
+
+    @Override
+    public List<Refunds> getRefundsByUserId(Long userId) {
+        if (ValidateUtil.isEmpty(userId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "用户ID不能为空");
+        }
+        try {
+            return refundsMapper.selectList(
+                    new QueryWrapper<Refunds>().eq("user_id", userId));
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询退款记录失败", e);
+        }
+    }
+
+    @Override
+    public List<Refunds> getRefundsByStatus(Integer status) {
+        if (ValidateUtil.isEmpty(status)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "退款状态不能为空");
+        }
+        try {
+            return refundsMapper.selectList(
+                    new QueryWrapper<Refunds>().eq("status", status));
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询退款记录失败", e);
+        }
+    }
+
+    @Override
+    public boolean updateRefundStatus(Long refundId, Integer status) {
+        if (ValidateUtil.isEmpty(refundId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "退款ID不能为空");
+        }
+        if (ValidateUtil.isEmpty(status)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "退款状态不能为空");
+        }
+        try {
+            // 检查退款记录是否存在
+            Refunds existing = refundsMapper.selectById(refundId);
+            if (existing == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "退款记录不存在");
+            }
+            // 更新状态
+            existing.setRefundStatus(status);
+            int result = refundsMapper.updateById(existing);
+            return result > 0;
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新退款状态失败", e);
+        }
+    }
+
+    @Override
+    public List<Refunds> listRefundsByPage(int page, int size) {
+        if (page < 1) {
+            throw new BusinessException(ErrorCode.INVALID_PARAM, "页码不能小于1");
+        }
+        if (size < 1 || size > 100) {
+            throw new BusinessException(ErrorCode.INVALID_PARAM, "每页数量必须在1-100之间");
+        }
+        try {
+            Page<Refunds> refundPage = new Page<>(page, size);
+            Page<Refunds> resultPage = refundsMapper.selectPage(refundPage, null);
+            return resultPage.getRecords();
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "分页查询退款记录失败", e);
+        }
+    }
+}

src/main/java/com/qf/backend/service/impl/RolePermissionsServiceImpl.java

@@ -0,0 +1,212 @@
+package com.qf.backend.service.impl;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.qf.backend.entity.RolePermissions;
+import com.qf.backend.exception.BusinessException;
+import com.qf.backend.exception.ErrorCode;
+import com.qf.backend.mapper.RolePermissionsMapper;
+import com.qf.backend.service.RolePermissionsService;
+import com.qf.backend.util.ValidateUtil;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * 角色权限关联服务实现类
+ */
+@Service
+public class RolePermissionsServiceImpl extends ServiceImpl<RolePermissionsMapper, RolePermissions> implements RolePermissionsService {
+
+    @Autowired
+    private RolePermissionsMapper rolePermissionsMapper;
+
+    @Override
+    public List<RolePermissions> getRolePermissionsByRoleId(Long roleId) {
+        if (ValidateUtil.isEmpty(roleId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "角色ID不能为空");
+        }
+        try {
+            return rolePermissionsMapper.selectList(
+                    new QueryWrapper<RolePermissions>().eq("role_id", roleId));
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询角色权限关联失败", e);
+        }
+    }
+
+    @Override
+    public List<RolePermissions> getRolePermissionsByPermissionId(Long permissionId) {
+        if (ValidateUtil.isEmpty(permissionId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "权限ID不能为空");
+        }
+        try {
+            return rolePermissionsMapper.selectList(
+                    new QueryWrapper<RolePermissions>().eq("permission_id", permissionId));
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询角色权限关联失败", e);
+        }
+    }
+
+    @Override
+    public boolean addPermissionToRole(Long roleId, Long permissionId) {
+        if (ValidateUtil.isEmpty(roleId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "角色ID不能为空");
+        }
+        if (ValidateUtil.isEmpty(permissionId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "权限ID不能为空");
+        }
+        try {
+            // 检查是否已经存在该关联关系
+            RolePermissions existing = rolePermissionsMapper.selectOne(
+                    new QueryWrapper<RolePermissions>()
+                            .eq("role_id", roleId)
+                            .eq("permission_id", permissionId));
+            if (existing != null) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "该角色已拥有此权限");
+            }
+            RolePermissions rolePermission = new RolePermissions();
+            rolePermission.setRoleId(roleId);
+            rolePermission.setPermissionId(permissionId);
+            int result = rolePermissionsMapper.insert(rolePermission);
+            return result > 0;
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "添加角色权限关联失败", e);
+        }
+    }
+
+    @Override
+    public boolean removePermissionFromRole(Long roleId, Long permissionId) {
+        if (ValidateUtil.isEmpty(roleId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "角色ID不能为空");
+        }
+        if (ValidateUtil.isEmpty(permissionId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "权限ID不能为空");
+        }
+        try {
+            // 检查关联关系是否存在
+            RolePermissions existing = rolePermissionsMapper.selectOne(
+                    new QueryWrapper<RolePermissions>()
+                            .eq("role_id", roleId)
+                            .eq("permission_id", permissionId));
+            if (existing == null) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "角色与权限的关联关系不存在");
+            }
+            int result = rolePermissionsMapper.delete(
+                    new QueryWrapper<RolePermissions>()
+                            .eq("role_id", roleId)
+                            .eq("permission_id", permissionId));
+            return result > 0;
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "移除角色权限关联失败", e);
+        }
+    }
+
+    @Override
+    public boolean batchAddPermissionsToRole(Long roleId, List<Long> permissionIds) {
+        if (ValidateUtil.isEmpty(roleId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "角色ID不能为空");
+        }
+        if (ValidateUtil.isEmpty(permissionIds)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "权限ID列表不能为空");
+        }
+        if (permissionIds.isEmpty()) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "权限ID列表不能为空");
+        }
+        try {
+            for (Long permissionId : permissionIds) {
+                if (ValidateUtil.isEmpty(permissionId)) {
+                    throw new BusinessException(ErrorCode.INVALID_PARAM, "权限ID列表中存在空值");
+                }
+                // 检查是否已经存在该关联关系
+                RolePermissions existing = rolePermissionsMapper.selectOne(
+                        new QueryWrapper<RolePermissions>()
+                                .eq("role_id", roleId)
+                                .eq("permission_id", permissionId));
+                if (existing == null) {
+                    RolePermissions rolePermission = new RolePermissions();
+                    rolePermission.setRoleId(roleId);
+                    rolePermission.setPermissionId(permissionId);
+                    rolePermissionsMapper.insert(rolePermission);
+                }
+            }
+            return true;
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "批量添加角色权限关联失败", e);
+        }
+    }
+
+    @Override
+    public boolean clearRolePermissions(Long roleId) {
+        if (ValidateUtil.isEmpty(roleId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "角色ID不能为空");
+        }
+        try {
+            // 检查角色是否有权限关联
+            List<RolePermissions> existingPermissions = rolePermissionsMapper.selectList(
+                    new QueryWrapper<RolePermissions>().eq("role_id", roleId));
+            if (existingPermissions.isEmpty()) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "该角色没有关联的权限");
+            }
+            int result = rolePermissionsMapper.delete(
+                    new QueryWrapper<RolePermissions>().eq("role_id", roleId));
+            return result > 0;
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "清除角色权限关联失败", e);
+        }
+    }
+
+    @Override
+    public boolean checkRoleHasPermission(Long roleId, Long permissionId) {
+        if (ValidateUtil.isEmpty(roleId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "角色ID不能为空");
+        }
+        if (ValidateUtil.isEmpty(permissionId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "权限ID不能为空");
+        }
+        try {
+            RolePermissions rolePermission = rolePermissionsMapper.selectOne(
+                    new QueryWrapper<RolePermissions>()
+                            .eq("role_id", roleId)
+                            .eq("permission_id", permissionId));
+            return rolePermission != null;
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "检查角色权限关系失败", e);
+        }
+    }
+
+    @Override
+    public List<Long> listPermissionIdsByRoleId(Long roleId) {
+        if (ValidateUtil.isEmpty(roleId)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "角色ID不能为空");
+        }
+        try {
+            List<RolePermissions> rolePermissions = rolePermissionsMapper.selectList(
+                    new QueryWrapper<RolePermissions>().eq("role_id", roleId));
+            List<Long> permissionIds = new ArrayList<>();
+            for (RolePermissions rp : rolePermissions) {
+                permissionIds.add(rp.getPermissionId());
+            }
+            return permissionIds;
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询角色权限ID列表失败", e);
+        }
+    }
+}

src/main/java/com/qf/backend/service/impl/RolesServiceImpl.java

@@ -7,14 +7,22 @@ package com.qf.backend.service.impl;
 
 import java.util.List;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.qf.backend.common.Result;
+import com.qf.backend.common.ResultUtils;
 import com.qf.backend.entity.Roles;
+import com.qf.backend.exception.BusinessException;
+import com.qf.backend.exception.ErrorCode;
 import com.qf.backend.mapper.RolesMapper;
 import com.qf.backend.service.RolesService;
+import com.qf.backend.util.ValidateUtil;
 
 /**
  *
@@ -23,66 +31,224 @@ import com.qf.backend.service.RolesService;
 @Service
 public class RolesServiceImpl extends ServiceImpl<RolesMapper, Roles> implements RolesService {
 
+    private static final Logger logger = LoggerFactory.getLogger(RolesServiceImpl.class);
+    
     @Autowired
     private RolesMapper rolesMapper;
 
     // 根据角色名称查询角色
     @Override
-    public Roles getRoleByName(String roleName) {
+    public Result<Roles> getRoleByName(String roleName) {
+        logger.info("根据角色名称查询角色: {}", roleName);
+        
+        // 参数校验
+        if (ValidateUtil.isEmpty(roleName)) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "角色名称不能为空");
+        }
+        
         try {
-            if (roleName == null) {
+            Roles role = rolesMapper.selectOne(new QueryWrapper<Roles>().eq("role_name", roleName));
-                return null;
+            if (role == null) {
+                logger.warn("角色 {} 不存在", roleName);
+                throw new BusinessException(ErrorCode.ROLE_NOT_FOUND, "角色不存在: " + roleName);
             }
-            Roles roles = rolesMapper.selectOne(new QueryWrapper<Roles>().eq("role_name", roleName));
+            return ResultUtils.success(role);
-            if (roles == null) {
+        } catch (BusinessException e) {
-                return null;
+            throw e;
-            }
-            return roles;
         } catch (Exception e) {
-            return null;
+            logger.error("查询角色失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询角色失败: " + e.getMessage(), e);
         }
     }
-   
+
-    // 查询所有角色
     @Override
-    public List<Roles> listAllRoles() {
+    public Result<Boolean> createRole(Roles roles) {
-         
+        logger.info("创建角色: {}", roles);
-        throw new UnsupportedOperationException("Unimplemented method 'listAllRoles'");
+           
+        try {
+            // 使用ValidateUtil进行实体验证
+            ValidateUtil.validateEntity(roles, "roleName");
+            
+            // 检查角色名称是否已存在
+            Roles existingRole = rolesMapper.selectOne(new QueryWrapper<Roles>().eq("role_name", roles.getRoleName()));
+            if (existingRole != null) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "角色名称已存在: " + roles.getRoleName());
+            }
+            
+            int result = rolesMapper.insert(roles);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "创建角色失败");
+            }
+            return ResultUtils.success(true);
+        } catch (IllegalArgumentException e) {
+            // 转换为业务异常
+            throw new BusinessException(ErrorCode.INVALID_PARAM, e.getMessage());
+        } catch (IllegalAccessException e) {
+            logger.error("验证角色信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.BUSINESS_ERROR, "验证角色信息失败: " + e.getMessage(), e);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("创建角色失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "创建角色失败: " + e.getMessage(), e);
+        }
     }
-    // 根据ID查询角色
+
     @Override
-    public Roles getRoleById(Long id) {
+    public Result<Boolean> updateRole(Roles roles) {
-         
+        logger.info("更新角色: {}", roles);
-        throw new UnsupportedOperationException("Unimplemented method 'getRoleById'");
+           
+        try {
+            // 检查角色ID是否为空
+            if (roles == null || roles.getId() == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "角色信息或角色ID不能为空");
+            }
+            
+            // 使用ValidateUtil进行实体验证
+            ValidateUtil.validateEntity(roles, "roleName");
+            
+            // 检查角色是否存在
+            Roles existingRole = rolesMapper.selectById(roles.getId());
+            if (existingRole == null) {
+                throw new BusinessException(ErrorCode.ROLE_NOT_FOUND, "角色不存在");
+            }
+            
+            // 检查角色名称是否与其他角色重复
+            Roles nameConflictRole = rolesMapper.selectOne(
+                new QueryWrapper<Roles>().eq("role_name", roles.getRoleName()).ne("id", roles.getId())
+            );
+            if (nameConflictRole != null) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "角色名称已存在: " + roles.getRoleName());
+            }
+            
+            rolesMapper.updateInfo(roles, new UpdateWrapper<Roles>().eq("id", roles.getId()));
+            return ResultUtils.success(true);
+        } catch (IllegalArgumentException e) {
+            // 转换为业务异常
+            throw new BusinessException(ErrorCode.INVALID_PARAM, e.getMessage());
+        } catch (IllegalAccessException e) {
+            logger.error("验证角色信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.BUSINESS_ERROR, "验证角色信息失败: " + e.getMessage(), e);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("更新角色失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新角色失败: " + e.getMessage(), e);
+        }
     }
-    // 根据用户ID查询角色
+
     @Override
-    public List<Roles> listRolesByUserId(Long userId) {
+    public Result<Boolean> deleteRole(Long id) {
-         
+        logger.info("删除角色: {}", id);
-        throw new UnsupportedOperationException("Unimplemented method 'listRolesByUserId'");
+           
+        // 参数校验
+        if (id == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "角色ID不能为空");
+        }
+        
+        try {
+            // 检查角色是否存在
+            Roles role = rolesMapper.selectById(id);
+            if (role == null) {
+                throw new BusinessException(ErrorCode.ROLE_NOT_FOUND, "角色不存在");
+            }
+            
+            // 删除角色
+            int result = rolesMapper.deleteById(id);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "删除角色失败");
+            }
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("删除角色失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "删除角色失败: " + e.getMessage(), e);
+        }
     }
-     // 创建角色
+
     @Override
-    public boolean createRole(Roles roles) {
+    public Result<List<Roles>> listAllRoles() {
-         
+        logger.info("查询所有角色");
-        throw new UnsupportedOperationException("Unimplemented method 'createRole'");
+        
+        try {
+            List<Roles> rolesList = rolesMapper.selectList(null);
+            return ResultUtils.success(rolesList);
+        } catch (Exception e) {
+            logger.error("查询所有角色失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询所有角色失败: " + e.getMessage(), e);
+        }
     }
-    // 更新角色
+
     @Override
-    public boolean updateRole(Roles roles) {
+    public Result<Roles> getRoleById(Long id) {
-         
+        logger.info("根据ID查询角色: {}", id);
-        throw new UnsupportedOperationException("Unimplemented method 'updateRole'");
+           
+        // 参数校验
+        if (id == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "角色ID不能为空");
+        }
+        
+        try {
+            Roles role = rolesMapper.selectById(id);
+            if (role == null) {
+                throw new BusinessException(ErrorCode.ROLE_NOT_FOUND, "角色不存在");
+            }
+            return ResultUtils.success(role);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("查询角色失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询角色失败: " + e.getMessage(), e);
+        }
     }
-    // 批量删除角色
+
     @Override
-    public boolean batchDeleteRoles(List<Long> ids) {
+    public Result<Boolean> batchDeleteRoles(List<Long> ids) {
-         
+        logger.info("批量删除角色: {}", ids);
-        throw new UnsupportedOperationException("Unimplemented method 'batchDeleteRoles'");
+           
+        // 参数校验
+        if (ids == null || ids.isEmpty()) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "角色ID列表不能为空");
+        }
+        
+        try {
+            // 检查所有角色是否存在
+            for (Long id : ids) {
+                Roles role = rolesMapper.selectById(id);
+                if (role == null) {
+                    throw new BusinessException(ErrorCode.ROLE_NOT_FOUND, "角色不存在: " + id);
+                }
+            }
+            
+            int result = rolesMapper.deleteBatchIds(ids);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "批量删除角色失败");
+            }
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("批量删除角色失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "批量删除角色失败: " + e.getMessage(), e);
+        }
     }
-      // 删除角色
+
     @Override
-    public boolean deleteRole(Long id) {
+    public Result<List<Roles>> listRolesByUserId(Long userId) {
-         
+        logger.info("查询用户角色: 用户ID = {}", userId);
-        throw new UnsupportedOperationException("Unimplemented method 'deleteRole'");
+           
+        // 参数校验
+        if (userId == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "用户ID不能为空");
+        }
+        
+        try {
+            List<Roles> rolesList = rolesMapper.selectList(new QueryWrapper<Roles>().inSql("id", "select role_id from user_roles where user_id = " + userId));
+            return ResultUtils.success(rolesList);
+        } catch (Exception e) {
+            logger.error("查询用户角色失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询用户角色失败: " + e.getMessage(), e);
+        }
     }
 }

src/main/java/com/qf/backend/service/impl/ShopCategoriesServiceImpl.java

@@ -0,0 +1,282 @@
+package com.qf.backend.service.impl;
+
+import java.util.List;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.qf.backend.common.Result;
+import com.qf.backend.common.ResultUtils;
+import com.qf.backend.entity.ShopCategories;
+import com.qf.backend.exception.BusinessException;
+import com.qf.backend.exception.ErrorCode;
+import com.qf.backend.mapper.ShopCategoriesMapper;
+import com.qf.backend.service.ShopCategoriesService;
+import com.qf.backend.util.ValidateUtil;
+
+@Service
+public class ShopCategoriesServiceImpl extends ServiceImpl<ShopCategoriesMapper, ShopCategories> implements ShopCategoriesService {
+
+    private static final Logger logger = LoggerFactory.getLogger(ShopCategoriesServiceImpl.class);
+    
+    @Autowired
+    private ShopCategoriesMapper shopCategoriesMapper;
+
+    @Override
+    public Result<ShopCategories> getCategoryByName(String categoryName) {
+        logger.info("根据分类名称查询分类: {}", categoryName);
+          
+        try {
+            if (ValidateUtil.isEmpty(categoryName)) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "分类名称不能为空");
+            }
+            
+            ShopCategories category = shopCategoriesMapper.selectOne(new QueryWrapper<ShopCategories>().eq("category_name", categoryName));
+            if (category == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "分类不存在: " + categoryName);
+            }
+            return ResultUtils.success(category);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("查询分类失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询分类失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<List<ShopCategories>> getSubCategoriesByParentId(Long parentId) {
+        logger.info("根据父分类ID查询子分类: {}", parentId);
+          
+        try {
+            if (parentId == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "父分类ID不能为空");
+            }
+            
+            List<ShopCategories> subCategories = shopCategoriesMapper.selectList(new QueryWrapper<ShopCategories>().eq("parent_id", parentId));
+            return ResultUtils.success(subCategories);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("查询子分类失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询子分类失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> createCategory(ShopCategories shopCategories) {
+        logger.info("创建分类: 分类对象");
+          
+        try {
+            // 使用ValidateUtil进行实体验证
+            ValidateUtil.validateEntity(shopCategories, "categoryName");
+            
+            int result = shopCategoriesMapper.insert(shopCategories);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "创建分类失败");
+            }
+            
+            logger.info("分类创建成功");
+            return ResultUtils.success(true);
+        } catch (IllegalArgumentException e) {
+            // 转换为业务异常
+            throw new BusinessException(ErrorCode.INVALID_PARAM, e.getMessage());
+        } catch (IllegalAccessException e) {
+            logger.error("验证分类信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.BUSINESS_ERROR, "验证分类信息失败: " + e.getMessage(), e);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("创建分类失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "创建分类失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> updateCategory(ShopCategories shopCategories) {
+        logger.info("更新分类信息: 分类ID = {}", shopCategories.getId());
+           
+        try {
+            if (shopCategories == null || shopCategories.getId() == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "分类信息或分类ID不能为空");
+            }
+            
+            // 检查分类是否存在
+            ShopCategories existingCategory = getCategoryByIdAndCheckExist(shopCategories.getId());
+            if (existingCategory == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "分类不存在");
+            }
+            
+            // 使用ValidateUtil进行实体验证
+            ValidateUtil.validateEntity(shopCategories, "categoryName");
+            
+            // 更新分类信息
+            int result = shopCategoriesMapper.updateById(shopCategories);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "更新分类信息失败");
+            }
+            
+            logger.info("分类信息更新成功: 分类ID = {}", shopCategories.getId());
+            return ResultUtils.success(true);
+        } catch (IllegalArgumentException e) {
+            // 转换为业务异常
+            throw new BusinessException(ErrorCode.INVALID_PARAM, e.getMessage());
+        } catch (IllegalAccessException e) {
+            logger.error("验证分类信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.BUSINESS_ERROR, "验证分类信息失败: " + e.getMessage(), e);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("更新分类信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新分类信息失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> deleteCategory(Long id) {
+        logger.info("删除分类: 分类ID = {}", id);
+          
+        try {
+            if (id == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "分类ID不能为空");
+            }
+            // 检查分类是否存在
+            ShopCategories category = getCategoryByIdAndCheckExist(id);
+            if (category == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "分类不存在");
+            }
+            
+            // 检查是否有子分类
+            List<ShopCategories> subCategories = shopCategoriesMapper.selectList(new QueryWrapper<ShopCategories>().eq("parent_id", id));
+            if (subCategories != null && !subCategories.isEmpty()) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "该分类下存在子分类，无法删除");
+            }
+            
+            int result = shopCategoriesMapper.deleteById(id);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "删除分类失败");
+            }
+            
+            logger.info("分类删除成功: 分类ID = {}", id);
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("删除分类失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "删除分类失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<List<ShopCategories>> listRootCategories() {
+        logger.info("查询所有根分类");
+          
+        try {
+            // 查询父分类ID为0或null的分类
+            List<ShopCategories> rootCategories = shopCategoriesMapper.selectList(new QueryWrapper<ShopCategories>().isNull("parent_id").or().eq("parent_id", 0));
+            logger.info("查询到 {} 个根分类", rootCategories.size());
+            return ResultUtils.success(rootCategories);
+        } catch (Exception e) {
+            logger.error("查询根分类失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询根分类失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<ShopCategories> getCategoryById(Long id) {
+        logger.info("根据ID查询分类: 分类ID = {}", id);
+          
+        try {
+            if (id == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "分类ID不能为空");
+            }
+            
+            ShopCategories category = getCategoryByIdAndCheckExist(id);
+            if (category == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "分类不存在");
+            }
+            
+            return ResultUtils.success(category);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("查询分类失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询分类失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> batchDeleteCategories(List<Long> ids) {
+        logger.info("批量删除分类: 分类ID列表 = {}", ids);
+          
+        try {
+            if (ids == null || ids.isEmpty()) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "分类ID列表不能为空");
+            }
+            
+            // 检查所有分类是否存在且没有子分类
+            for (Long id : ids) {
+                ShopCategories category = getCategoryByIdAndCheckExist(id);
+                if (category == null) {
+                    throw new BusinessException(ErrorCode.NOT_FOUND, "分类不存在: " + id);
+                }
+                
+                // 检查是否有子分类
+                List<ShopCategories> subCategories = shopCategoriesMapper.selectList(new QueryWrapper<ShopCategories>().eq("parent_id", id));
+                if (subCategories != null && !subCategories.isEmpty()) {
+                    throw new BusinessException(ErrorCode.BUSINESS_ERROR, "分类 " + id + " 下存在子分类，无法删除");
+                }
+            }
+            
+            int result = shopCategoriesMapper.deleteBatchIds(ids);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "批量删除分类失败");
+            }
+            
+            logger.info("批量删除分类成功: 删除了 {} 个分类", result);
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("批量删除分类失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "批量删除分类失败: " + e.getMessage(), e);
+        }
+    }
+
+    @Override
+    public Result<List<ShopCategories>> listAllCategoriesWithTree() {
+        logger.info("查询所有分类（树形结构）");
+          
+        try {
+            // 查询所有分类
+            List<ShopCategories> allCategories = shopCategoriesMapper.selectList(null);
+            
+            // TODO: 实现树形结构转换逻辑
+            // 这里简单返回所有分类，实际项目中需要将分类转换为树形结构
+            
+            logger.info("查询到 {} 个分类", allCategories.size());
+            return ResultUtils.success(allCategories);
+        } catch (Exception e) {
+            logger.error("查询分类树形结构失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询分类树形结构失败: " + e.getMessage(), e);
+        }
+    }
+
+    /**
+     * 根据分类ID查询分类并检查是否存在
+     * @param id 分类ID
+     * @return 分类对象，如果分类不存在则返回null
+     */
+    private ShopCategories getCategoryByIdAndCheckExist(Long id) {
+        if (id == null) {
+            return null;
+        }
+        QueryWrapper<ShopCategories> queryWrapper = new QueryWrapper<ShopCategories>().eq("id", id);
+        return shopCategoriesMapper.selectOne(queryWrapper);
+    }
+
+}

src/main/java/com/qf/backend/service/impl/ShopRatingsServiceImpl.java

@@ -0,0 +1,373 @@
+package com.qf.backend.service.impl;
+
+import java.util.List;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.qf.backend.common.Result;
+import com.qf.backend.common.ResultUtils;
+import com.qf.backend.entity.ShopRatings;
+import com.qf.backend.exception.BusinessException;
+import com.qf.backend.exception.ErrorCode;
+import com.qf.backend.mapper.ShopRatingsMapper;
+import com.qf.backend.service.ShopRatingsService;
+import com.qf.backend.util.ValidateUtil;
+
+@Service
+public class ShopRatingsServiceImpl extends ServiceImpl<ShopRatingsMapper, ShopRatings> implements ShopRatingsService {
+
+    private static final Logger logger = LoggerFactory.getLogger(ShopRatingsServiceImpl.class);
+    
+    @Autowired
+    private ShopRatingsMapper shopRatingsMapper;
+
+    // 根据店铺ID查询评分
+    @Override
+    public Result<List<ShopRatings>> getRatingsByShopId(Long shopId) {
+        logger.info("根据店铺ID查询评分: {}", shopId);
+          
+        try {
+            if (shopId == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "店铺ID不能为空");
+            }
+            
+            QueryWrapper<ShopRatings> queryWrapper = new QueryWrapper<ShopRatings>().eq("shop_id", shopId);
+            List<ShopRatings> ratingsList = shopRatingsMapper.selectList(queryWrapper);
+            logger.info("查询到 {} 个评分", ratingsList.size());
+            return ResultUtils.success(ratingsList);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("查询评分失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询评分失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 根据用户ID查询评分
+    @Override
+    public Result<List<ShopRatings>> getRatingsByUserId(Long userId) {
+        logger.info("根据用户ID查询评分: {}", userId);
+          
+        try {
+            if (userId == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "用户ID不能为空");
+            }
+            
+            QueryWrapper<ShopRatings> queryWrapper = new QueryWrapper<ShopRatings>().eq("user_id", userId);
+            List<ShopRatings> ratingsList = shopRatingsMapper.selectList(queryWrapper);
+            logger.info("查询到 {} 个评分", ratingsList.size());
+            return ResultUtils.success(ratingsList);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("查询评分失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询评分失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 创建评分
+    @Override
+    public Result<Boolean> createRating(ShopRatings shopRatings) {
+        logger.info("创建评分: 评分对象");
+          
+        try {
+            // 使用ValidateUtil进行实体验证
+            ValidateUtil.validateEntity(shopRatings, "shopId", "userId", "rating");
+            
+            // 检查评分范围
+            if (shopRatings.getRating() < 1 || shopRatings.getRating() > 5) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "评分必须在1-5之间");
+            }
+            
+            int result = shopRatingsMapper.insert(shopRatings);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "创建评分失败");
+            }
+            
+            logger.info("评分创建成功");
+            return ResultUtils.success(true);
+        } catch (IllegalArgumentException e) {
+            // 转换为业务异常
+            throw new BusinessException(ErrorCode.INVALID_PARAM, e.getMessage());
+        } catch (IllegalAccessException e) {
+            logger.error("验证评分信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.BUSINESS_ERROR, "验证评分信息失败: " + e.getMessage(), e);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("创建评分失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "创建评分失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 更新评分信息
+    @Override
+    public Result<Boolean> updateRating(ShopRatings shopRatings) {
+        logger.info("更新评分信息: 评分ID = {}", shopRatings.getId());
+           
+        try {
+            if (shopRatings == null || shopRatings.getId() == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "评分信息或评分ID不能为空");
+            }
+            
+            // 检查评分是否存在
+            ShopRatings existingRating = getRatingByIdAndCheckExist(shopRatings.getId());
+            if (existingRating == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "评分不存在");
+            }
+            
+            // 使用ValidateUtil进行实体验证
+            ValidateUtil.validateEntity(shopRatings, "shopId", "userId", "rating");
+            
+            // 检查评分范围
+            if (shopRatings.getRating() < 1 || shopRatings.getRating() > 5) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "评分必须在1-5之间");
+            }
+            
+            // 更新评分信息
+            int result = shopRatingsMapper.updateById(shopRatings);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "更新评分信息失败");
+            }
+            
+            logger.info("评分信息更新成功: 评分ID = {}", shopRatings.getId());
+            return ResultUtils.success(true);
+        } catch (IllegalArgumentException e) {
+            // 转换为业务异常
+            throw new BusinessException(ErrorCode.INVALID_PARAM, e.getMessage());
+        } catch (IllegalAccessException e) {
+            logger.error("验证评分信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.BUSINESS_ERROR, "验证评分信息失败: " + e.getMessage(), e);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("更新评分信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新评分信息失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 删除评分
+    @Override
+    public Result<Boolean> deleteRating(Long id) {
+        logger.info("删除评分: 评分ID = {}", id);
+          
+        try {
+            if (id == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "评分ID不能为空");
+            }
+            // 检查评分是否存在
+            ShopRatings rating = getRatingByIdAndCheckExist(id);
+            if (rating == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "评分不存在");
+            }
+            
+            int result = shopRatingsMapper.deleteById(id);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "删除评分失败");
+            }
+            
+            logger.info("评分删除成功: 评分ID = {}", id);
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("删除评分失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "删除评分失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 根据评分ID查询评分
+    @Override
+    public Result<ShopRatings> getRatingById(Long id) {
+        logger.info("根据ID查询评分: 评分ID = {}", id);
+          
+        try {
+            if (id == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "评分ID不能为空");
+            }
+            
+            ShopRatings rating = getRatingByIdAndCheckExist(id);
+            if (rating == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "评分不存在");
+            }
+            
+            return ResultUtils.success(rating);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("查询评分失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询评分失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 获取店铺平均评分
+    @Override
+    public Result<Double> getAverageRatingByShopId(Long shopId) {
+        logger.info("获取店铺平均评分: 店铺ID = {}", shopId);
+          
+        try {
+            if (shopId == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "店铺ID不能为空");
+            }
+            
+            // 使用QueryWrapper查询所有评分
+            QueryWrapper<ShopRatings> queryWrapper = new QueryWrapper<ShopRatings>().eq("shop_id", shopId);
+            List<ShopRatings> ratingsList = shopRatingsMapper.selectList(queryWrapper);
+            
+            // 计算平均评分
+            Double averageRating = 0.0;
+            if (ratingsList != null && !ratingsList.isEmpty()) {
+                int totalRating = 0;
+                for (ShopRatings rating : ratingsList) {
+                    totalRating += rating.getRating();
+                }
+                averageRating = (double) totalRating / ratingsList.size();
+            }
+            
+            logger.info("店铺平均评分: {}", averageRating);
+            return ResultUtils.success(averageRating);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("获取店铺平均评分失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "获取店铺平均评分失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 获取店铺评分数量
+    @Override
+    public Result<Integer> getRatingCountByShopId(Long shopId) {
+        logger.info("获取店铺评分数量: 店铺ID = {}", shopId);
+          
+        try {
+            if (shopId == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "店铺ID不能为空");
+            }
+            
+            // 使用QueryWrapper查询评分数量
+            QueryWrapper<ShopRatings> queryWrapper = new QueryWrapper<ShopRatings>().eq("shop_id", shopId);
+            Long ratingCount = shopRatingsMapper.selectCount(queryWrapper);
+            
+            logger.info("店铺评分数量: {}", ratingCount);
+            return ResultUtils.success(ratingCount != null ? ratingCount.intValue() : 0);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("获取店铺评分数量失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "获取店铺评分数量失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 根据评分星级查询店铺评分
+    @Override
+    public Result<List<ShopRatings>> getRatingsByShopIdAndRating(Long shopId, Integer rating) {
+        logger.info("根据评分星级查询店铺评分: 店铺ID = {}, 评分 = {}", shopId, rating);
+          
+        try {
+            if (shopId == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "店铺ID不能为空");
+            }
+            if (rating == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "评分不能为空");
+            }
+            
+            // 检查评分范围
+            if (rating < 1 || rating > 5) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "评分必须在1-5之间");
+            }
+            
+            QueryWrapper<ShopRatings> queryWrapper = new QueryWrapper<ShopRatings>()
+                .eq("shop_id", shopId)
+                .eq("rating", rating);
+            List<ShopRatings> ratingsList = shopRatingsMapper.selectList(queryWrapper);
+            logger.info("查询到 {} 个评分", ratingsList.size());
+            return ResultUtils.success(ratingsList);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("根据评分星级查询店铺评分失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "根据评分星级查询店铺评分失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 检查用户是否已对店铺评分
+    @Override
+    public Result<Boolean> checkUserHasRated(Long shopId, Long userId) {
+        logger.info("检查用户是否已对店铺评分: 店铺ID = {}, 用户ID = {}", shopId, userId);
+          
+        try {
+            if (shopId == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "店铺ID不能为空");
+            }
+            if (userId == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "用户ID不能为空");
+            }
+            
+            QueryWrapper<ShopRatings> queryWrapper = new QueryWrapper<ShopRatings>()
+                .eq("shop_id", shopId)
+                .eq("user_id", userId);
+            ShopRatings rating = shopRatingsMapper.selectOne(queryWrapper);
+            boolean hasRated = rating != null;
+            logger.info("用户是否已评分: {}", hasRated);
+            return ResultUtils.success(hasRated);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("检查用户是否已对店铺评分失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "检查用户是否已对店铺评分失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 分页查询店铺评分
+    @Override
+    public Result<List<ShopRatings>> listRatingsByShopIdAndPage(Long shopId, int page, int size) {
+        logger.info("分页查询店铺评分: 店铺ID = {}, 页码 = {}, 每页大小 = {}", shopId, page, size);
+          
+        try {
+            if (shopId == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "店铺ID不能为空");
+            }
+            
+            // 参数校验
+            if (page < 1) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "页码不能小于1");
+            }
+            if (size < 1 || size > 100) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "每页大小必须在1-100之间");
+            }
+            
+            // 使用MyBatis-Plus的分页功能
+            Page<ShopRatings> ratingPage = new Page<>(page, size);
+            QueryWrapper<ShopRatings> queryWrapper = new QueryWrapper<ShopRatings>().eq("shop_id", shopId);
+            Page<ShopRatings> resultPage = shopRatingsMapper.selectPage(ratingPage, queryWrapper);
+            
+            logger.info("分页查询成功: 共 {} 条记录, 第 {} 页", resultPage.getTotal(), page);
+            return ResultUtils.success(resultPage.getRecords());
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("分页查询店铺评分失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "分页查询店铺评分失败: " + e.getMessage(), e);
+        }
+    }
+
+    /**
+     * 根据评分ID查询评分并检查是否存在
+     * @param id 评分ID
+     * @return 评分对象，如果评分不存在则返回null
+     */
+    private ShopRatings getRatingByIdAndCheckExist(Long id) {
+        if (id == null) {
+            return null;
+        }
+        QueryWrapper<ShopRatings> queryWrapper = new QueryWrapper<ShopRatings>().eq("id", id);
+        return shopRatingsMapper.selectOne(queryWrapper);
+    }
+
+}

src/main/java/com/qf/backend/service/impl/ShopsServiceImpl.java

@@ -0,0 +1,335 @@
+package com.qf.backend.service.impl;
+
+import java.util.List;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.qf.backend.common.Result;
+import com.qf.backend.common.ResultUtils;
+import com.qf.backend.entity.Shops;
+import com.qf.backend.exception.BusinessException;
+import com.qf.backend.exception.ErrorCode;
+import com.qf.backend.mapper.ShopsMapper;
+import com.qf.backend.service.ShopsService;
+import com.qf.backend.util.ValidateUtil;
+
+@Service
+public class ShopsServiceImpl extends ServiceImpl<ShopsMapper, Shops> implements ShopsService {
+
+    private static final Logger logger = LoggerFactory.getLogger(ShopsServiceImpl.class);
+    
+    @Autowired
+    private ShopsMapper shopsMapper;
+
+    // 根据店铺名称查询店铺
+    @Override
+    public Result<List<Shops>> getShopsByName(String shopName) {
+        logger.info("根据店铺名称查询店铺: {}", shopName);
+          
+        try {
+            if (ValidateUtil.isEmpty(shopName)) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "店铺名称不能为空");
+            }
+            
+            QueryWrapper<Shops> queryWrapper = new QueryWrapper<Shops>().like("shop_name", shopName);
+            List<Shops> shopsList = shopsMapper.selectList(queryWrapper);
+            logger.info("查询到 {} 个店铺", shopsList.size());
+            return ResultUtils.success(shopsList);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("查询店铺失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询店铺失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 根据用户ID查询店铺
+    @Override
+    public Result<Shops> getShopByUserId(Long userId) {
+        logger.info("根据用户ID查询店铺: {}", userId);
+          
+        try {
+            if (userId == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "用户ID不能为空");
+            }
+            
+            QueryWrapper<Shops> queryWrapper = new QueryWrapper<Shops>().eq("user_id", userId);
+            Shops shop = shopsMapper.selectOne(queryWrapper);
+            if (shop == null) {
+                throw new BusinessException(ErrorCode.SHOP_NOT_FOUND, "店铺不存在: 用户ID = " + userId);
+            }
+            return ResultUtils.success(shop);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("查询店铺失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询店铺失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 创建店铺
+    @Override
+    public Result<Boolean> createShop(Shops shops) {
+        logger.info("创建店铺: 店铺对象");
+          
+        try {
+            // 使用ValidateUtil进行实体验证
+            ValidateUtil.validateEntity(shops, "shopName", "userId", "categoryId");
+            
+            int result = shopsMapper.insert(shops);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "创建店铺失败");
+            }
+            
+            logger.info("店铺创建成功");
+            return ResultUtils.success(true);
+        } catch (IllegalArgumentException e) {
+            // 转换为业务异常
+            throw new BusinessException(ErrorCode.INVALID_PARAM, e.getMessage());
+        } catch (IllegalAccessException e) {
+            logger.error("验证店铺信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.BUSINESS_ERROR, "验证店铺信息失败: " + e.getMessage(), e);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("创建店铺失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "创建店铺失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 更新店铺信息
+    @Override
+    public Result<Boolean> updateShop(Shops shops) {
+        logger.info("更新店铺信息: 店铺ID = {}", shops.getId());
+           
+        try {
+            if (shops == null || shops.getId() == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "店铺信息或店铺ID不能为空");
+            }
+            
+            // 检查店铺是否存在
+            Shops existingShop = getShopByIdAndCheckExist(shops.getId());
+            if (existingShop == null) {
+                throw new BusinessException(ErrorCode.SHOP_NOT_FOUND, "店铺不存在");
+            }
+            
+            // 使用ValidateUtil进行实体验证
+            ValidateUtil.validateEntity(shops, "shopName", "categoryId");
+            
+            // 更新店铺信息
+            int result = shopsMapper.updateById(shops);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "更新店铺信息失败");
+            }
+            
+            logger.info("店铺信息更新成功: 店铺ID = {}", shops.getId());
+            return ResultUtils.success(true);
+        } catch (IllegalArgumentException e) {
+            // 转换为业务异常
+            throw new BusinessException(ErrorCode.INVALID_PARAM, e.getMessage());
+        } catch (IllegalAccessException e) {
+            logger.error("验证店铺信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.BUSINESS_ERROR, "验证店铺信息失败: " + e.getMessage(), e);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("更新店铺信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新店铺信息失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 删除店铺
+    @Override
+    public Result<Boolean> deleteShop(Long id) {
+        logger.info("删除店铺: 店铺ID = {}", id);
+          
+        try {
+            if (id == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "店铺ID不能为空");
+            }
+            // 检查店铺是否存在
+            Shops shop = getShopByIdAndCheckExist(id);
+            if (shop == null) {
+                throw new BusinessException(ErrorCode.SHOP_NOT_FOUND, "店铺不存在");
+            }
+            
+            int result = shopsMapper.deleteById(id);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "删除店铺失败");
+            }
+            
+            logger.info("店铺删除成功: 店铺ID = {}", id);
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("删除店铺失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "删除店铺失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 根据店铺ID查询店铺
+    @Override
+    public Result<Shops> getShopById(Long id) {
+        logger.info("根据ID查询店铺: 店铺ID = {}", id);
+          
+        try {
+            if (id == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "店铺ID不能为空");
+            }
+            
+            Shops shop = getShopByIdAndCheckExist(id);
+            if (shop == null) {
+                throw new BusinessException(ErrorCode.SHOP_NOT_FOUND, "店铺不存在");
+            }
+            
+            return ResultUtils.success(shop);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("查询店铺失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询店铺失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 分页查询店铺
+    @Override
+    public Result<List<Shops>> listShopsByPage(int page, int size) {
+        logger.info("分页查询店铺: 页码 = {}, 每页大小 = {}", page, size);
+          
+        try {
+            // 参数校验
+            if (page < 1) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "页码不能小于1");
+            }
+            if (size < 1 || size > 100) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "每页大小必须在1-100之间");
+            }
+            
+            // 使用MyBatis-Plus的分页功能
+            Page<Shops> shopPage = new Page<>(page, size);
+            Page<Shops> resultPage = shopsMapper.selectPage(shopPage, null);
+            
+            logger.info("分页查询成功: 共 {} 条记录, 第 {} 页", resultPage.getTotal(), page);
+            return ResultUtils.success(resultPage.getRecords());
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("分页查询店铺失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "分页查询店铺失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 根据店铺分类ID查询店铺
+    @Override
+    public Result<List<Shops>> getShopsByCategoryId(Long categoryId) {
+        logger.info("根据店铺分类ID查询店铺: 分类ID = {}", categoryId);
+          
+        try {
+            if (categoryId == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "分类ID不能为空");
+            }
+            
+            QueryWrapper<Shops> queryWrapper = new QueryWrapper<Shops>().eq("category_id", categoryId);
+            List<Shops> shopsList = shopsMapper.selectList(queryWrapper);
+            logger.info("查询到 {} 个店铺", shopsList.size());
+            return ResultUtils.success(shopsList);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("根据分类ID查询店铺失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "根据分类ID查询店铺失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 更新店铺状态
+    @Override
+    public Result<Boolean> updateShopStatus(Long shopId, Integer status) {
+        logger.info("更新店铺状态: 店铺ID = {}, 状态 = {}", shopId, status);
+          
+        try {
+            if (shopId == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "店铺ID不能为空");
+            }
+            if (status == null) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "店铺状态不能为空");
+            }
+            
+            // 检查店铺是否存在
+            Shops shop = getShopByIdAndCheckExist(shopId);
+            if (shop == null) {
+                throw new BusinessException(ErrorCode.SHOP_NOT_FOUND, "店铺不存在");
+            }
+            
+            // 更新店铺状态
+            shop.setStatus(status);
+            int result = shopsMapper.updateById(shop);
+            if (result <= 0) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "更新店铺状态失败");
+            }
+            
+            logger.info("店铺状态更新成功: 店铺ID = {}, 新状态 = {}", shopId, status);
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("更新店铺状态失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新店铺状态失败: " + e.getMessage(), e);
+        }
+    }
+
+    // 搜索店铺
+    @Override
+    public Result<List<Shops>> searchShops(String keyword, int page, int size) {
+        logger.info("搜索店铺: 关键词 = {}, 页码 = {}, 每页大小 = {}", keyword, page, size);
+          
+        try {
+            if (ValidateUtil.isEmpty(keyword)) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "搜索关键词不能为空");
+            }
+            
+            // 参数校验
+            if (page < 1) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "页码不能小于1");
+            }
+            if (size < 1 || size > 100) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "每页大小必须在1-100之间");
+            }
+            
+            // 使用MyBatis-Plus的分页功能
+            Page<Shops> shopPage = new Page<>(page, size);
+            QueryWrapper<Shops> queryWrapper = new QueryWrapper<Shops>()
+                .like("shop_name", keyword)
+                .or().like("description", keyword);
+            Page<Shops> resultPage = shopsMapper.selectPage(shopPage, queryWrapper);
+            
+            logger.info("搜索成功: 共 {} 条记录, 第 {} 页", resultPage.getTotal(), page);
+            return ResultUtils.success(resultPage.getRecords());
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("搜索店铺失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "搜索店铺失败: " + e.getMessage(), e);
+        }
+    }
+
+    /**
+     * 根据店铺ID查询店铺并检查是否存在
+     * @param id 店铺ID
+     * @return 店铺对象，如果店铺不存在则返回null
+     */
+    private Shops getShopByIdAndCheckExist(Long id) {
+        if (id == null) {
+            return null;
+        }
+        QueryWrapper<Shops> queryWrapper = new QueryWrapper<Shops>().eq("id", id);
+        return shopsMapper.selectOne(queryWrapper);
+    }
+
+}

src/main/java/com/qf/backend/service/impl/UserDetailsServiceImpl.java

@@ -0,0 +1,158 @@
+package com.qf.backend.service.impl;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.qf.backend.common.Result;
+import com.qf.backend.common.ResultUtils;
+import com.qf.backend.entity.UserDetails;
+import com.qf.backend.exception.BusinessException;
+import com.qf.backend.exception.ErrorCode;
+import com.qf.backend.mapper.UserDetailsMapper;
+import com.qf.backend.service.UserDetailsService;
+
+/**
+ * 用户详情服务实现类
+ */
+@Service
+public class UserDetailsServiceImpl extends ServiceImpl<UserDetailsMapper, UserDetails> implements UserDetailsService {
+
+    @Autowired
+    private UserDetailsMapper userDetailsMapper;
+
+    @Override
+    public Result<UserDetails> getUserDetailsByUserId(Long userId) {
+        if (userId == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "用户ID不能为空");
+        }
+        try {
+            UserDetails userDetails = userDetailsMapper.selectOne(
+                    new QueryWrapper<UserDetails>().eq("user_id", userId));
+            return ResultUtils.success(userDetails);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询用户详情失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> createUserDetails(UserDetails userDetails) {
+        if (userDetails == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "用户详情信息不能为空");
+        }
+        if (userDetails.getUserId() == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "用户ID不能为空");
+        }
+        try {
+            // 检查是否已存在该用户的详情
+            UserDetails existing = userDetailsMapper.selectOne(
+                    new QueryWrapper<UserDetails>().eq("user_id", userDetails.getUserId()));
+            if (existing != null) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "该用户已存在详情信息");
+            }
+            int result = userDetailsMapper.insert(userDetails);
+            return ResultUtils.success(result > 0);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "创建用户详情失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> updateUserDetails(UserDetails userDetails) {
+        if (userDetails == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "用户详情信息不能为空");
+        }
+        if (userDetails.getId() == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "用户详情ID不能为空");
+        }
+        try {
+            // 检查用户详情是否存在
+            UserDetails existing = userDetailsMapper.selectById(userDetails.getId());
+            if (existing == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "用户详情不存在");
+            }
+            int result = userDetailsMapper.updateById(userDetails);
+            return ResultUtils.success(result > 0);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新用户详情失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> deleteUserDetailsByUserId(Long userId) {
+        if (userId == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "用户ID不能为空");
+        }
+        try {
+            // 检查用户详情是否存在
+            UserDetails existing = userDetailsMapper.selectOne(
+                    new QueryWrapper<UserDetails>().eq("user_id", userId));
+            if (existing == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "用户详情不存在");
+            }
+            int result = userDetailsMapper.delete(
+                    new QueryWrapper<UserDetails>().eq("user_id", userId));
+            return ResultUtils.success(result > 0);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "删除用户详情失败", e);
+        }
+    }
+
+    @Override
+    public Result<UserDetails> getUserDetailsById(Long id) {
+        if (id == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "用户详情ID不能为空");
+        }
+        try {
+            UserDetails userDetails = userDetailsMapper.selectById(id);
+            if (userDetails == null) {
+                throw new BusinessException(ErrorCode.NOT_FOUND, "用户详情不存在");
+            }
+            return ResultUtils.success(userDetails);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询用户详情失败", e);
+        }
+    }
+
+    // @Override
+    // public Result<Boolean> updateContactInfo(Long userId, String phone, String email) {
+    //     if (userId == null) {
+    //         throw new BusinessException(ErrorCode.MISSING_PARAM, "用户ID不能为空");
+    //     }
+    //     if (ValidateUtil.isEmpty(phone) && ValidateUtil.isEmpty(email)) {
+    //         throw new BusinessException(ErrorCode.MISSING_PARAM, "手机号和邮箱不能同时为空");
+    //     }
+    //     try {
+    //         // 检查用户详情是否存在
+    //         UserDetails existing = userDetailsMapper.selectOne(
+    //                 new QueryWrapper<UserDetails>().eq("user_id", userId));
+    //         if (existing == null) {
+    //             throw new BusinessException(ErrorCode.NOT_FOUND, "用户详情不存在");
+    //         }
+    //         // 更新联系方式
+    //         if (phone != null) {
+    //             existing.setPhone(phone);
+    //         }
+    //         if (email != null) {
+    //             existing.setEmail(email);
+    //         }
+    //         int result = userDetailsMapper.updateById(existing);
+    //         return ResultUtils.success(result > 0);
+    //     } catch (BusinessException e) {
+    //         throw e;
+    //     } catch (Exception e) {
+    //         throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新用户联系方式失败", e);
+    //     }
+    // }
+}

src/main/java/com/qf/backend/service/impl/UserLoginServiceImpl.java

@@ -0,0 +1,121 @@
+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+
+package com.qf.backend.service.impl;
+
+import java.util.ArrayList;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import com.qf.backend.common.Result;
+import com.qf.backend.common.ResultUtils;
+import com.qf.backend.dto.LoginUser;
+import com.qf.backend.entity.Permissions;
+import com.qf.backend.entity.Roles;
+import com.qf.backend.entity.UserRoles;
+import com.qf.backend.entity.Users;
+import com.qf.backend.exception.ErrorCode;
+import com.qf.backend.service.PermissionsService;
+import com.qf.backend.service.RolePermissionsService;
+import com.qf.backend.service.RolesService;
+import com.qf.backend.service.UserLoginService;
+import com.qf.backend.service.UserRolesService;
+import com.qf.backend.service.UsersService;
+import com.qf.backend.util.ValidateUtil;
+
+
+
+/**
+ *
+ * @author 30803
+ */
+@Service
+public class UserLoginServiceImpl implements UserLoginService {
+    private Logger logger = LoggerFactory.getLogger(UserLoginServiceImpl.class);
+    @Autowired
+    private UsersService usersServiceImpl;
+    @Autowired
+    private UserRolesService userRolesServiceImpl;
+    @Autowired
+    private RolesService rolesServiceImpl;
+    @Autowired
+    private RolePermissionsService rolePermissionsServiceImpl;
+    @Autowired
+    private PermissionsService permissionsServiceImpl;
+    /**
+     * 用户登录
+     * @param username 用户名
+     * @param password 密码
+     * @return 登录结果
+     */
+    @Override
+    public Result<LoginUser> login(String username, String password) {
+        logger.info("用户登录，用户名：{}", username);
+        // 1. 校验用户名和密码是否为空
+        try{
+        if (ValidateUtil.isEmpty(username) || ValidateUtil.isEmpty(password)) {
+            throw new IllegalArgumentException("用户名或密码不能为空");
+        } 
+        // 加密密码
+        String encryptedPassword = ValidateUtil.encryptPassword(password);
+        // 2. 登录
+        Result<Users> result = usersServiceImpl.login(username, encryptedPassword);
+        if (result == null || result.getData() == null) {
+            throw new IllegalArgumentException("用户名不存在或密码错误");
+        }
+        
+        Users user = result.getData();
+        // 3. 获取用户角色
+        Result<List<UserRoles>> userRolesResult = userRolesServiceImpl.getUserRolesByUserId(user.getId());
+        if (userRolesResult == null || userRolesResult.getData() == null) {
+            throw new IllegalArgumentException("获取用户角色失败");
+        }
+        
+        List<UserRoles> userRoles = userRolesResult.getData();
+        Set<String> roleNames = new HashSet<>();
+        Set<Long> roleIds = new HashSet<>();
+        
+        // 4. 获取角色名称和角色ID
+        for (UserRoles ur : userRoles) {
+            Roles role = rolesServiceImpl.getById(ur.getRoleId());
+            if (role != null) {
+                roleNames.add(role.getRoleName());
+                roleIds.add(role.getId());
+            }
+        }
+        
+        // 5. 获取用户权限
+        Set<String> permissionCodes = new HashSet<>();
+        for (Long roleId : roleIds) {
+            List<Long> permissionIds = rolePermissionsServiceImpl.listPermissionIdsByRoleId(roleId);
+            for (Long permissionId : permissionIds) {
+                Permissions permission = permissionsServiceImpl.getById(permissionId);
+                if (permission != null) {
+                    permissionCodes.add(permission.getPermissionCode());
+                }
+            }
+        }
+        
+        // 6. 构建LoginUser对象
+        LoginUser loginUser = new LoginUser();
+        loginUser.setId(user.getId());
+        loginUser.setUsername(user.getUsername());
+        loginUser.setRoles(new ArrayList<>(roleNames));
+        loginUser.setPermissions(new ArrayList<>(permissionCodes));
+
+        return ResultUtils.success(loginUser);
+        } catch (Exception e) {
+            logger.error("用户登录失败，用户名：{}", username, e);
+            return ResultUtils.fail(ErrorCode.SYSTEM_ERROR, e.getMessage());
+        }
+    }
+
+}

src/main/java/com/qf/backend/service/impl/UsersRolesServiceImpl.java

@@ -0,0 +1,174 @@
+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+
+package com.qf.backend.service.impl;
+
+import java.util.List;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
+import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
+import com.qf.backend.common.Result;
+import com.qf.backend.common.ResultUtils;
+import com.qf.backend.entity.UserRoles;
+import com.qf.backend.exception.BusinessException;
+import com.qf.backend.exception.ErrorCode;
+import com.qf.backend.mapper.UserRolesMapper;
+import com.qf.backend.service.UserRolesService;
+
+
+
+
+/**
+ *
+ * @author 30803
+ */
+@Service
+public class UsersRolesServiceImpl extends ServiceImpl<UserRolesMapper, UserRoles> implements UserRolesService {
+    @Autowired
+    private UserRolesMapper userRolesMapper;
+    
+    @Override
+    public Result<List<UserRoles>> getUserRolesByUserId(Long userId) {
+        if (userId == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "用户ID不能为空");
+        }
+        try {
+            List<UserRoles> userRoles = userRolesMapper.selectList(new QueryWrapper<UserRoles>().eq("user_id", userId));
+            return ResultUtils.success(userRoles);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询用户角色信息失败", e);
+        }
+    }
+
+    @Override
+    public Result<List<UserRoles>> getUserRolesByRoleId(Long roleId) {
+        if (roleId == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "角色ID不能为空");
+        }
+        try {
+            List<UserRoles> userRoles = userRolesMapper.selectList(new QueryWrapper<UserRoles>().eq("role_id", roleId));
+            return ResultUtils.success(userRoles);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询角色用户信息失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> addRoleToUser(Long userId, Long roleId) {
+        if (userId == null || roleId == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "用户ID和角色ID不能为空");
+        }
+        try {
+            // 检查是否已经存在该关联关系
+            UserRoles existing = userRolesMapper.selectOne(new QueryWrapper<UserRoles>().eq("user_id", userId).eq("role_id", roleId));
+            if (existing != null) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "用户已拥有该角色");
+            }
+            UserRoles userRoles = new UserRoles();
+            userRoles.setUserId(userId);
+            userRoles.setRoleId(roleId);
+            int result = userRolesMapper.insert(userRoles);
+            return ResultUtils.success(result > 0);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "添加用户角色关联失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> removeRoleFromUser(Long userId, Long roleId) {
+        if (userId == null || roleId == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "用户ID和角色ID不能为空");
+        }
+        try {
+            // 检查关联关系是否存在
+            UserRoles existing = userRolesMapper.selectOne(new QueryWrapper<UserRoles>().eq("user_id", userId).eq("role_id", roleId));
+            if (existing == null) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "用户与角色的关联关系不存在");
+            }
+            int result = userRolesMapper.delete(new QueryWrapper<UserRoles>().eq("user_id", userId).eq("role_id", roleId));
+            return ResultUtils.success(result > 0);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "移除用户角色关联失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> batchAddRolesToUser(Long userId, List<Long> roleIds) {
+        if (userId == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "用户ID不能为空");
+        }
+        if (roleIds == null || roleIds.isEmpty()) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "角色ID列表不能为空");
+        }
+        try {
+            for (Long roleId : roleIds) {
+                if (roleId == null) {
+                    throw new BusinessException(ErrorCode.INVALID_PARAM, "角色ID列表中存在空值");
+                }
+                // 检查是否已经存在该关联关系
+                UserRoles existing = userRolesMapper.selectOne(new QueryWrapper<UserRoles>().eq("user_id", userId).eq("role_id", roleId));
+                if (existing == null) {
+                    UserRoles userRoles = new UserRoles();
+                    userRoles.setUserId(userId);
+                    userRoles.setRoleId(roleId);
+                    userRolesMapper.insert(userRoles);
+                }
+            }
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "批量添加用户角色关联失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> clearUserRoles(Long userId) {
+        if (userId == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "用户ID不能为空");
+        }
+        try {
+            // 检查用户是否有角色关联
+            List<UserRoles> existingRoles = userRolesMapper.selectList(new QueryWrapper<UserRoles>().eq("user_id", userId));
+            if (existingRoles.isEmpty()) {
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "该用户没有关联的角色");
+            }
+            int result = userRolesMapper.delete(new QueryWrapper<UserRoles>().eq("user_id", userId));
+            return ResultUtils.success(result > 0);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "清除用户角色关联失败", e);
+        }
+    }
+
+    @Override
+    public Result<Boolean> checkUserHasRole(Long userId, Long roleId) {
+        if (userId == null || roleId == null) {
+            throw new BusinessException(ErrorCode.MISSING_PARAM, "用户ID和角色ID不能为空");
+        }
+        try {
+            // 修改selectInfo为selectOne，因为selectInfo方法可能不存在
+            UserRoles userRoles = userRolesMapper.selectOne(new QueryWrapper<UserRoles>().eq("user_id", userId).eq("role_id", roleId));
+            return ResultUtils.success(userRoles != null);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "检查用户角色关系失败", e);
+        }
+    }
+    
+}

src/main/java/com/qf/backend/service/impl/UsersServiceImpl.java

@@ -2,190 +2,325 @@ package com.qf.backend.service.impl;
 
 import java.util.List;
 
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
 import org.springframework.stereotype.Service;
 
 import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
 import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
+import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.qf.backend.common.Result;
 import com.qf.backend.common.ResultUtils;
 import com.qf.backend.entity.Users;
+import com.qf.backend.exception.BusinessException;
 import com.qf.backend.exception.ErrorCode;
 import com.qf.backend.mapper.UsersMapper;
 import com.qf.backend.service.UsersService;
+import com.qf.backend.util.ValidateUtil;
 
 @Service
 public class UsersServiceImpl extends ServiceImpl<UsersMapper, Users> implements UsersService {
 
+    private static final Logger logger = LoggerFactory.getLogger(UsersServiceImpl.class);
+    
     @Autowired
     private UsersMapper usersMapper;
 
     // 根据用户名查询用户
     @Override
     public Result<Users> getUserByUsername(String username) {
+        logger.info("根据用户名查询用户: {}", username);
           
         try {
-            if (username == null || username.isEmpty()) {
+            if (ValidateUtil.isEmpty(username)) {
-                return ResultUtils.fail(ErrorCode.INVALID_PARAM);
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "用户名不能为空");
             }
+            
             Users users = usersMapper.selectByUsername(username);
             if (users == null) {
-                return ResultUtils.fail(ErrorCode.USER_NOT_FOUND);
+                throw new BusinessException(ErrorCode.USER_NOT_FOUND, "用户不存在: " + username);
             }
             return ResultUtils.success(users);
+        } catch (BusinessException e) {
+            throw e;
         } catch (Exception e) {
-            return ResultUtils.fail(ErrorCode.DATABASE_ERROR);
+            logger.error("查询用户失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询用户失败: " + e.getMessage(), e);
         }
     }
 
     // 根据邮箱查询用户
     @Override
     public Result<Users> getUserByEmail(String email) {
+        logger.info("根据邮箱查询用户: {}", email);
           
         try {
-            if (email == null || email.isEmpty()) {
+            if (ValidateUtil.isEmpty(email)) {
-                return ResultUtils.fail(ErrorCode.INVALID_PARAM);
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "邮箱不能为空");
             }
+            
+            // 使用ValidateUtil进行邮箱格式校验
+            if (!ValidateUtil.isValidEmail(email)) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "邮箱格式不正确");
+            }
+            
             Users users = usersMapper.selectByEmail(email);
             if (users == null) {
-                return ResultUtils.fail(ErrorCode.USER_NOT_FOUND);
+                throw new BusinessException(ErrorCode.USER_NOT_FOUND, "用户不存在: " + email);
             }
             return ResultUtils.success(users);
+        } catch (BusinessException e) {
+            throw e;
         } catch (Exception e) {
-            return ResultUtils.fail(ErrorCode.DATABASE_ERROR);
+            logger.error("查询用户失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询用户失败: " + e.getMessage(), e);
+        }
+    }
+    // 登录
+    @Override
+    public  Result<Users> login(String username, String password) {
+        logger.info("登录: 用户名 = {}", username);
+        try {
+            if (ValidateUtil.isEmpty(username) || ValidateUtil.isEmpty(password)) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "用户名或密码不能为空");
+            }
+            
+            // 校验用户名是否存在
+            Users user = usersMapper.login(username, password);
+            if (user == null) {
+                throw new BusinessException(ErrorCode.USER_NOT_FOUND, "用户名不存在或密码错误");
+            }
+            
+            return ResultUtils.success(user);
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("登录失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "登录失败: " + e.getMessage(), e);
         }
     }
-
     //创建用户
     @Override
     public Result<Boolean> createUser(Users users) {
+        logger.info("创建用户: 用户对象");
           
         try {
-            // 调用封装的验证方法
+            // 使用ValidateUtil进行实体验证
-            Result<Boolean> validationResult = validateUserBeforeCreate(users);
+            ValidateUtil.validateEntity(users, "username", "email", "password");
-            if (validationResult != null) {
+            
-                return validationResult;
-            }
             // 加密密码
             users.setPassword(new BCryptPasswordEncoder().encode(users.getPassword()));
+            
             int result = usersMapper.insert(users);
             if (result <= 0) {
-                return ResultUtils.fail(ErrorCode.DATABASE_ERROR);
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "创建用户失败");
             }
-            return ResultUtils.success();
+            
+            logger.info("用户创建成功");
+            return ResultUtils.success(true);
+        } catch (IllegalArgumentException e) {
+            // 转换为业务异常
+            throw new BusinessException(ErrorCode.INVALID_PARAM, e.getMessage());
+        } catch (IllegalAccessException e) {
+            logger.error("验证用户信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.BUSINESS_ERROR, "验证用户信息失败: " + e.getMessage(), e);
+        } catch (BusinessException e) {
+            throw e;
         } catch (Exception e) {
-            return ResultUtils.fail(ErrorCode.DATABASE_ERROR);
+            logger.error("创建用户失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "创建用户失败: " + e.getMessage(), e);
         }
     }
 
     // 更新用户信息
     @Override
     public Result<Boolean> updateUser(Users users) {
-          
+        logger.info("更新用户信息: 用户ID = {}", users.getId());
+           
         try {
-            // 调用封装的验证方法
+            if (users == null || users.getId() == null) {
-            Result<Boolean> validationResult = validateUserBeforeCreate(users);
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "用户信息或用户ID不能为空");
-            if (validationResult != null) {
-                return validationResult;
             }
-            // 更新用户信息
+            
-            int result = usersMapper.updateInfo(users, new UpdateWrapper<Users>().set("username", users.getUsername()).set("email", users.getEmail()).set("phone", users.getPhone()).set("avatar", users.getAvatar()).eq("id", users.getId()));
+            // 检查用户是否存在
+            Users existingUser = getUserByIdAndCheckExist(users.getId());
+            if (existingUser == null) {
+                throw new BusinessException(ErrorCode.USER_NOT_FOUND, "用户不存在");
+            }
+            
+            // 使用ValidateUtil进行实体验证
+            ValidateUtil.validateEntity(users, "username", "email");
+            
+            // 更新用户信息，不包含密码更新
+            int result = usersMapper.updateInfo(users, new UpdateWrapper<Users>()
+                .set("username", users.getUsername())
+                .set("email", users.getEmail())
+                .set("phone", users.getPhone())
+                .set("avatar", users.getAvatar())
+                .eq("id", users.getId()));
+            
             if (result <= 0) {
-                return ResultUtils.fail(ErrorCode.DATABASE_ERROR);
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "更新用户信息失败");
             }
-            return ResultUtils.success();
+            
+            logger.info("用户信息更新成功: 用户ID = {}", users.getId());
+            return ResultUtils.success(true);
+        } catch (IllegalArgumentException e) {
+            // 转换为业务异常
+            throw new BusinessException(ErrorCode.INVALID_PARAM, e.getMessage());
+        } catch (IllegalAccessException e) {
+            logger.error("验证用户信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.BUSINESS_ERROR, "验证用户信息失败: " + e.getMessage(), e);
+        } catch (BusinessException e) {
+            throw e;
         } catch (Exception e) {
-            return ResultUtils.fail(ErrorCode.DATABASE_ERROR);
+            logger.error("更新用户信息失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新用户信息失败: " + e.getMessage(), e);
         }
     }
 
     // 删除用户
     @Override
     public Result<Boolean> deleteUser(Long id) {
+        logger.info("删除用户: 用户ID = {}", id);
           
         try {
             if (id == null) {
-                return ResultUtils.fail(ErrorCode.MISSING_PARAM);
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "用户ID不能为空");
             }
             // 检查用户是否存在
             Users users = getUserByIdAndCheckExist(id);
             if (users == null) {
-                return ResultUtils.fail(ErrorCode.USER_NOT_FOUND);
+                throw new BusinessException(ErrorCode.USER_NOT_FOUND, "用户不存在");
             }
+            
             int result = usersMapper.deleteById(id);
             if (result <= 0) {
-                return ResultUtils.fail(ErrorCode.DATABASE_ERROR);
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "删除用户失败");
             }
-            return ResultUtils.success();
+            
+            logger.info("用户删除成功: 用户ID = {}", id);
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
         } catch (Exception e) {
-            return ResultUtils.fail(ErrorCode.DATABASE_ERROR);
+            logger.error("删除用户失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "删除用户失败: " + e.getMessage(), e);
         }
     }
 
     // 查询所有用户
     @Override
     public Result<List<Users>> listAllUsers() {
+        logger.info("查询所有用户列表");
           
         try {
             List<Users> usersList = usersMapper.selectList(null);
-            if (usersList == null || usersList.isEmpty()) {
+            logger.info("查询到 {} 个用户", usersList.size());
-                return ResultUtils.fail(ErrorCode.NOT_FOUND);
-            }
             return ResultUtils.success(usersList);
         } catch (Exception e) {
-            return ResultUtils.fail(ErrorCode.DATABASE_ERROR);
+            logger.error("查询用户列表失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询用户列表失败: " + e.getMessage(), e);
         }
     }
 
     // 分页查询用户
     @Override
     public Result<List<Users>> listUsersByPage(int page, int size) {
+        logger.info("分页查询用户: 页码 = {}, 每页大小 = {}", page, size);
           
-        throw new UnsupportedOperationException("Unimplemented method 'listUsersByPage'");
+        try {
+            // 参数校验
+            if (page < 1) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "页码不能小于1");
+            }
+            if (size < 1 || size > 100) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "每页大小必须在1-100之间");
+            }
+            
+            // 使用MyBatis-Plus的分页功能
+            Page<Users> userPage = new Page<>(page, size);
+            Page<Users> resultPage = usersMapper.selectPage(userPage, null);
+            
+            logger.info("分页查询成功: 共 {} 条记录, 第 {} 页", resultPage.getTotal(), page);
+            return ResultUtils.success(resultPage.getRecords());
+        } catch (BusinessException e) {
+            throw e;
+        } catch (Exception e) {
+            logger.error("分页查询用户失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "分页查询用户失败: " + e.getMessage(), e);
+        }
     }
 
     // 根据ID查询用户
     @Override
     public Result<Users> getUserById(Long id) {
+        logger.info("根据ID查询用户: 用户ID = {}", id);
           
         try {
             if (id == null) {
-                return ResultUtils.fail(ErrorCode.MISSING_PARAM);
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "用户ID不能为空");
             }
+            
             Users users = getUserByIdAndCheckExist(id);
             if (users == null) {
-                return ResultUtils.fail(ErrorCode.USER_NOT_FOUND);
+                throw new BusinessException(ErrorCode.USER_NOT_FOUND, "用户不存在");
             }
+            
             return ResultUtils.success(users);
+        } catch (BusinessException e) {
+            throw e;
         } catch (Exception e) {
-            return ResultUtils.fail(ErrorCode.DATABASE_ERROR);
+            logger.error("查询用户失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "查询用户失败: " + e.getMessage(), e);
         }
     }
 
     // 更新用户密码
     @Override
     public Result<Boolean> updatePassword(Long id, String newPassword) {
+        logger.info("更新用户密码: 用户ID = {}", id);
           
         try {
-            if (id == null || newPassword == null || newPassword.isEmpty()) {
+            if (id == null) {
-                return ResultUtils.fail(ErrorCode.MISSING_PARAM);
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "用户ID不能为空");
             }
+            if (ValidateUtil.isEmpty(newPassword)) {
+                throw new BusinessException(ErrorCode.MISSING_PARAM, "新密码不能为空");
+            }
+            
+            // 密码强度校验
+            if (newPassword.length() < 6) {
+                throw new BusinessException(ErrorCode.INVALID_PARAM, "密码长度不能少于6个字符");
+            }
+            
             Users users = getUserByIdAndCheckExist(id);
             if (users == null) {
-                return ResultUtils.fail(ErrorCode.USER_NOT_FOUND);
+                throw new BusinessException(ErrorCode.USER_NOT_FOUND, "用户不存在");
             }
+            
             // 加密新密码
             users.setPassword(new BCryptPasswordEncoder().encode(newPassword));
+            
             // 更新密码
-            int result = usersMapper.updateInfo(users, new UpdateWrapper<Users>().set("password", users.getPassword()).eq("id", id));
+            int result = usersMapper.updateInfo(users, new UpdateWrapper<Users>()
+                .set("password", users.getPassword())
+                .eq("id", id));
+            
             if (result <= 0) {
-                return ResultUtils.fail(ErrorCode.DATABASE_ERROR);
+                throw new BusinessException(ErrorCode.BUSINESS_ERROR, "更新密码失败");
             }
-            return ResultUtils.success();
+            
+            logger.info("用户密码更新成功: 用户ID = {}", id);
+            return ResultUtils.success(true);
+        } catch (BusinessException e) {
+            throw e;
         } catch (Exception e) {
-            return ResultUtils.fail(ErrorCode.DATABASE_ERROR);
+            logger.error("更新用户密码失败: {}", e.getMessage(), e);
+            throw new BusinessException(ErrorCode.DATABASE_ERROR, "更新用户密码失败: " + e.getMessage(), e);
         }
     }
 
@@ -202,43 +337,4 @@ public class UsersServiceImpl extends ServiceImpl<UsersMapper, Users> implements
         return usersMapper.selectOne(queryWrapper);
     }
 
-    /**
-     * 验证用户信息是否合法且不存在重复
-     *
-     * @param users 用户对象
-     * @return 验证失败时返回错误Result，验证成功时返回null
-     */
-    private Result<Boolean> validateUserBeforeCreate(Users users) {
-        // 检查用户对象是否为空
-        if (users == null) {
-            return ResultUtils.fail(ErrorCode.MISSING_PARAM);
-        }
-        // 检查必要字段是否为空
-        if (users.getUsername() == null || users.getUsername().isEmpty()) {
-            return ResultUtils.fail(ErrorCode.MISSING_PARAM);
-        }
-        if (users.getEmail() == null || users.getEmail().isEmpty()) {
-            return ResultUtils.fail(ErrorCode.MISSING_PARAM);
-        }
-        if (users.getPassword() == null || users.getPassword().isEmpty()) {
-            return ResultUtils.fail(ErrorCode.MISSING_PARAM);
-        }
-        // 检查用户名是否已存在
-        Users existingUserByUsername = usersMapper.selectByUsername(users.getUsername());
-        if (existingUserByUsername != null) {
-            return ResultUtils.fail(ErrorCode.USER_EXISTED);
-        }
-        // 检查邮箱是否已存在
-        Users existingUserByEmail = usersMapper.selectByEmail(users.getEmail());
-        if (existingUserByEmail != null) {
-            return ResultUtils.fail(ErrorCode.USER_EXISTED);
-        }
-        // 检查手机号是否已存在
-        Users existingUserByPhone = usersMapper.selectByPhone(users.getPhone());
-        if (existingUserByPhone != null) {
-            return ResultUtils.fail(ErrorCode.USER_EXISTED);
-        }
-        return null; // 验证通过
-    }
-
 }

src/main/java/com/qf/backend/util/JwtUtils.java

@@ -0,0 +1,120 @@
+package com.qf.backend.util;
+
+import java.nio.charset.StandardCharsets;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.function.Function;
+
+import javax.crypto.SecretKey;
+
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.security.core.userdetails.UserDetails;
+import org.springframework.stereotype.Component;
+
+import io.jsonwebtoken.Claims;
+import io.jsonwebtoken.Jwts;
+import io.jsonwebtoken.security.Keys;
+
+/**
+ * JWT工具类，用于生成和验证token（JJWT 0.12.x 版本）
+ * 支持 Java 17+ 和 Jakarta EE（Spring Boot 3.x）
+ */
+@Component
+public class JwtUtils {
+
+    @Value("${jwt.secret:default_secret_key_for_development}")
+    private String secret;
+
+    @Value("${jwt.expiration:3600000}")
+    private long expiration;
+
+    @Value("${jwt.token-prefix:Bearer}")
+    private String tokenPrefix;
+
+    /**
+     * 获取签名密钥
+     */
+    private SecretKey getSignInKey() {
+        byte[] keyBytes = secret.getBytes(StandardCharsets.UTF_8);
+        return Keys.hmacShaKeyFor(keyBytes);
+    }
+
+    /**
+     * 从token中获取用户名
+     */
+    public String getUsernameFromToken(String token) {
+        return getClaimFromToken(token, Claims::getSubject);
+    }
+
+    /**
+     * 从token中获取过期时间
+     */
+    public Date getExpirationDateFromToken(String token) {
+        return getClaimFromToken(token, Claims::getExpiration);
+    }
+
+    /**
+     * 从token中获取指定的claim
+     */
+    public <T> T getClaimFromToken(String token, Function<Claims, T> claimsResolver) {
+        final Claims claims = getAllClaimsFromToken(token);
+        return claimsResolver.apply(claims);
+    }
+
+    /**
+     * 获取token中的所有claims
+     */
+    private Claims getAllClaimsFromToken(String token) {
+        return Jwts.parser()
+                .verifyWith(getSignInKey())
+                .build()
+                .parseSignedClaims(token)
+                .getPayload();
+    }
+
+    /**
+     * 检查token是否过期
+     */
+    private Boolean isTokenExpired(String token) {
+        final Date expiration = getExpirationDateFromToken(token);
+        return expiration.before(new Date());
+    }
+
+    /**
+     * 生成token
+     */
+    public String generateToken(UserDetails userDetails) {
+        Map<String, Object> claims = new HashMap<>();
+        claims.put("authorities", userDetails.getAuthorities());
+        return doGenerateToken(claims, userDetails.getUsername());
+    }
+
+    /**
+     * 生成token的核心方法
+     */
+    private String doGenerateToken(Map<String, Object> claims, String subject) {
+        return Jwts.builder()
+                .claims(claims)  // 使用新的 claims() 方法
+                .subject(subject)  // 使用新的 subject() 方法
+                .issuedAt(new Date(System.currentTimeMillis()))
+                .expiration(new Date(System.currentTimeMillis() + expiration))  // 使用新的 expiration() 方法
+                .signWith(getSignInKey(), Jwts.SIG.HS256)  // 使用新的签名方式
+                .compact();
+    }
+
+    /**
+     * 验证token
+     */
+    public Boolean validateToken(String token, UserDetails userDetails) {
+        final String username = getUsernameFromToken(token);
+        return (username.equals(userDetails.getUsername()) && !isTokenExpired(token));
+    }
+
+    /**
+     * 获取token前缀
+     */
+    public String getTokenPrefix() {
+        return tokenPrefix;
+    }
+}

src/main/java/com/qf/backend/util/RefundNumberFenerator.java

@@ -0,0 +1,21 @@
+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+
+package com.qf.backend.util;
+
+/**
+ * 退款单号生成器
+ * @author 30803
+ */
+public class RefundNumberFenerator {
+    /**
+     * 生成退款单号
+     * @return 退款单号
+     */
+    public static String generateRefundNumber() {
+        // REF + 基于时间戳 + 随机数 / 序列号（最常用）
+        return "REF" + System.currentTimeMillis() + (int)(Math.random() * 10000);
+    }
+}

src/main/java/com/qf/backend/util/TimeUtils.java

@@ -0,0 +1,31 @@
+/*
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
+ * Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template
+ */
+
+package com.qf.backend.util;
+
+import java.sql.Date;
+import java.text.SimpleDateFormat;
+
+/**
+ * 时间工具类
+ * @author 30803
+ */
+public class TimeUtils {
+    /**
+     * 获取当前时间戳
+     * @return 当前时间戳
+     */
+    public static long getCurrentTimestamp() {
+        return System.currentTimeMillis();
+    }
+    /**
+     * 将时间戳转换为时间字符串
+     * @param timestamp 时间戳
+     * @return 时间字符串
+     */
+    public static String timestampToString(long timestamp) {
+        return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date(timestamp));
+    }
+}

src/main/java/com/qf/backend/util/ValidateUtil.java

@@ -3,10 +3,14 @@ package com.qf.backend.util;
 import java.lang.reflect.Field;
 import java.util.HashSet;
 import java.util.Set;
+import java.util.regex.Pattern;
+
+import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
 
 /**
  * 参数验证工具类
  * 用于验证字符串是否为空，以及实体类中指定关键字的属性是否为空
+ * 还包括手机号和邮箱格式验证功能
  */
 public class ValidateUtil {
     
@@ -22,7 +26,20 @@ public class ValidateUtil {
     public static boolean isEmpty(String str) {
         return str == null || str.trim().isEmpty();
     }
-    
+    /**
+     * 验证数据是否为空
+     * @param str 待验证的字符串
+     * @return 如果字符串为null或空字符串或只包含空白字符，则返回true；否则返回false
+     */
+    public static boolean isEmpty(Object obj) {
+        if (obj == null) {
+            return true;
+        }
+        if (obj instanceof String) {
+            return isEmpty((String) obj);
+        }
+        return false;
+    }
     /**
      * 检查字符串是否非空
      * @param str 待检查的字符串
@@ -33,104 +50,124 @@ public class ValidateUtil {
     }
     
     /**
-     * 验证字符串非空
+     * 验证中国大陆手机号格式
-     * @param str 待验证的字符串
+     * @param phone 手机号
-     * @param paramName 参数名，用于错误提示
+     * @return 如果手机号格式正确，则返回true；否则返回false
-     * @throws IllegalArgumentException 如果字符串为空，则抛出异常
+     * @note 支持中国大陆11位手机号，以1开头
      */
-    public static void validateString(String str, String paramName) {
+    public static boolean isValidPhone(String phone) {
-        if (isEmpty(str)) {
+        if (isEmpty(phone)) {
-            throw new IllegalArgumentException(paramName + " cannot be empty or null");
+            return false;
         }
+        // 中国大陆手机号正则表达式：1开头的11位数字
+        String regex = "^1[3-9]\\d{9}$";
+        return Pattern.matches(regex, phone);
     }
     
     /**
-     * 验证实体类中与关键字匹配的字符串属性是否为空
+     * 验证邮箱格式
+     * @param email 邮箱地址
+     * @return 如果邮箱格式正确，则返回true；否则返回false
+     * @note 支持标准邮箱格式，如example@domain.com
+     */
+    public static boolean isValidEmail(String email) {
+        if (isEmpty(email)) {
+            return false;
+        }
+        // 标准邮箱正则表达式
+        String regex = "^[a-zA-Z0-9_+&*-]+(?:\\.[a-zA-Z0-9_+&*-]+)*@(?:[a-zA-Z0-9-]+\\.)+[a-zA-Z]{2,7}$";
+        return Pattern.matches(regex, email);
+    }
+    
+    /**
+     * 验证实体类中与关键字匹配的字符串属性是否为空，以及特殊格式验证
      * @param entity 实体对象
      * @param keywords 关键字数组，用于匹配属性名
-     * @throws IllegalArgumentException 如果实体对象为null，或者匹配的属性值为空，则抛出异常
+     * @throws IllegalArgumentException 如果实体对象为null，或者匹配的属性值为空或格式不正确，则抛出异常
      * @throws IllegalAccessException 如果反射访问属性失败
      * @note 如果未提供关键字，则验证实体类中所有字符串属性都不为空
      * @note 如果提供了关键字，则验证实体类中与关键字匹配的字符串属性都不为空
      * @note 关键字匹配是不区分大小写的
-     * @note 如果实体类中不存在与关键字匹配的字符串属性，则抛出异常
+     * @note 自动识别手机号相关字段(phone, tel, mobile)并验证格式
-     * @note 如果实体类中存在多个与关键字匹配的字符串属性，只验证第一个匹配的属性
+     * @note 自动识别邮箱相关字段(email)并验证格式
-     * @note 如果实体类中存在与关键字匹配的非字符串属性，忽略该属性
      */
     public static void validateEntity(Object entity, String... keywords) throws IllegalAccessException {
         if (entity == null) {
             throw new IllegalArgumentException("Entity cannot be null");
         }
         
-        if (keywords == null || keywords.length == 0) {
-            // 如果没有提供关键字，则验证实体类中所有字符串属性都不为空
-            for (Field field : entity.getClass().getDeclaredFields()) {
-                // 设置字段可访问
-                field.setAccessible(true);
-                
-                // 检查字段是否为字符串类型
-                if (field.getType() == String.class) {
-                    String fieldValue = (String) field.get(entity);
-                    if (isEmpty(fieldValue)) {
-                        throw new IllegalArgumentException(field.getName() + " cannot be empty or null");
-                    }
-                }
-            }
-            return;
-        }
-        
-        // 将关键字转换为小写，用于不区分大小写的匹配
-        Set<String> keywordSet = new HashSet<>();
-        for (String keyword : keywords) {
-            if (isNotEmpty(keyword)) {
-                keywordSet.add(keyword.toLowerCase());
-            }
-        }
-        
         // 获取实体类的所有字段，包括私有字段
         Class<?> clazz = entity.getClass();
         Field[] fields = clazz.getDeclaredFields();
         
-        for (Field field : fields) {
+        // 将关键字转换为小写，用于不区分大小写的匹配
-            // 设置字段可访问
+        Set<String> keywordSet = new HashSet<>();
-            field.setAccessible(true);
+        if (keywords != null && keywords.length > 0) {
-            
+            for (String keyword : keywords) {
-            String fieldName = field.getName().toLowerCase();
+                if (isNotEmpty(keyword)) {
-            
+                    keywordSet.add(keyword.toLowerCase());
-            // 检查字段名是否包含关键字
-            for (String keyword : keywordSet) {
-                if (fieldName.contains(keyword)) {
-                    // 如果是字符串类型，检查是否为空
-                    if (field.getType() == String.class) {
-                        String fieldValue = (String) field.get(entity);
-                        if (isEmpty(fieldValue)) {
-                            throw new IllegalArgumentException(field.getName() + " cannot be empty or null");
-                        }
-                    }
-                    break;
                 }
             }
         }
-    }
+        
-    
+        boolean hasMatchingField = false;
-    /**
+        
-     * 通用参数验证方法
+        for (Field field : fields) {
-     * 如果是String类型，直接验证是否为空
+            // 设置字段可访问
-     * 如果是实体类，验证其与关键字匹配的属性
+            field.setAccessible(true);
-     * @param param 参数对象
+            String fieldName = field.getName().toLowerCase();
-     * @param keywords 关键字数组
+            
-     * @throws IllegalArgumentException 验证失败时抛出异常
+            // 检查是否需要验证此字段
-     * @throws IllegalAccessException 反射访问失败时抛出异常
+            boolean shouldValidate = false;
-     */
+            if (keywords == null || keywords.length == 0) {
-    public static void validateParam(Object param, String... keywords) throws IllegalAccessException {
+                // 如果没有提供关键字，则验证所有字符串属性
-        if (param == null) {
+                shouldValidate = field.getType() == String.class;
-            throw new IllegalArgumentException("Parameter cannot be null");
+            } else {
+                // 如果提供了关键字，则验证与关键字匹配的属性
+                for (String keyword : keywordSet) {
+                    if (fieldName.contains(keyword)) {
+                        shouldValidate = true;
+                        hasMatchingField = true;
+                        break;
+                    }
+                }
+            }
+            
+            if (shouldValidate && field.getType() == String.class) {
+                String fieldValue = (String) field.get(entity);
+                
+                // 检查是否为空
+                if (isEmpty(fieldValue)) {
+                    throw new IllegalArgumentException(field.getName() + " cannot be empty or null");
+                }
+                
+                // 根据字段名进行特殊格式验证
+                if (fieldName.contains("phone") || fieldName.contains("tel") || fieldName.contains("mobile")) {
+                    // 验证手机号格式
+                    if (!isValidPhone(fieldValue)) {
+                        throw new IllegalArgumentException(field.getName() + " has invalid phone format");
+                    }
+                } else if (fieldName.contains("email")) {
+                    // 验证邮箱格式
+                    if (!isValidEmail(fieldValue)) {
+                        throw new IllegalArgumentException(field.getName() + " has invalid email format");
+                    }
+                }
+            }
         }
         
-        if (param instanceof String) {
+        // 如果提供了关键字但没有匹配的字段，则抛出异常
-            validateString((String) param, "parameter");
+        if (keywords != null && keywords.length > 0 && !hasMatchingField) {
-        } else {
+            throw new IllegalArgumentException("No matching fields found for the provided keywords");
-            validateEntity(param, keywords);
+        }
+    }
+    // 密码加密
+    public static String encryptPassword(String password) {
+        try {
+            String newpasswrod = new BCryptPasswordEncoder().encode(password);
+            return newpasswrod;
+        } catch (Exception e) {
+            throw new RuntimeException("Password encryption failed", e);
         }
     }
 }

src/main/resources/META-INF/additional-spring-configuration-metadata.json

@@ -0,0 +1,5 @@
+{"properties": [{
+  "name": "jwt.expiration",
+  "type": "java.lang.String",
+  "description": "A description for 'jwt.expiration'"
+}]}

src/main/resources/application-dev.properties

@@ -0,0 +1,4 @@
+# JWT 配置 - 开发用（方便调试）
+jwt.secret=your_very_strong_secret_key_that_is_at_least_32_characters_long!
+jwt.expiration=3600000
+jwt.token-prefix=Bearer

src/main/resources/application-prod.properties

@@ -0,0 +1,4 @@
+# JWT 配置 - 生产用（敏感信息从环境变量读取）
+jwt.secret=${JWT_SECRET}
+jwt.expiration=${JWT_EXPIRATION:3600000}
+jwt.token-prefix=${JWT_TOKEN_PREFIX:Bearer}

src/main/resources/application.properties

@@ -5,3 +5,5 @@ spring.datasource.url=jdbc:mysql://localhost:3306/TaoTaoWang?useUnicode=true&cha
 spring.datasource.username=root
 spring.datasource.password=123456
 spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
+# 暂时关闭Spring Security
+spring.autoconfigure.exclude=org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration