feat(分类属性): 实现分类属性管理功能

新增分类属性相关实体、DTO、仓库、服务及控制器
扩展文章服务以支持按属性查询文章
重构文章实体将typeid改为attributeid
添加按标题查询文章功能

src/main/java/com/qf/myafterprojecy/pojo/Article.java

@@ -22,8 +22,8 @@ public class Article {
     private String content;
 
     @NotNull(message = "类别id不能为空")
-    @Column(name = "typeid")
-    private Integer typeid;
+    @Column(name = "attributeid")
+    private Integer attributeid;
 
     @Column(name = "img")
     private String img;
@@ -42,6 +42,14 @@ public class Article {
     // Getters and Setters
 
 
+    public Integer getAttributeid() {
+        return attributeid;
+    }
+
+    public void setAttributeid(Integer attributeid) {
+        this.attributeid = attributeid;
+    }
+
     public Integer getArticleid() {
         return articleid;
     }
@@ -66,14 +74,6 @@ public class Article {
         this.content = content;
     }
 
-    public Integer getTypeid() {
-        return typeid;
-    }
-
-    public void setTypeid(Integer typeid) {
-        this.typeid = typeid;
-    }
-
     public LocalDateTime getCreatedAt() {
         return createdAt;
     }

src/main/java/com/qf/myafterprojecy/pojo/Category_attribute.java

@@ -1,4 +1,42 @@
 package com.qf.myafterprojecy.pojo;
 
-public class category_attribute {
+import javax.persistence.*;
+
+@Entity
+@Table(name = "category_attribute")
+public class Category_attribute {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "attributeid")
+    private Integer attributeid;
+
+    @Column(name = "categoryid")
+    private Integer categoryid;
+
+    @Column(name = "attributename")
+    private String attributename;
+
+    public Integer getAttributeid() {
+        return attributeid;
+    }
+
+    public void setAttributeid(Integer attributeid) {
+        this.attributeid = attributeid;
+    }
+
+    public Integer getCategoryid() {
+        return categoryid;
+    }
+
+    public void setCategoryid(Integer categoryid) {
+        this.categoryid = categoryid;
+    }
+
+    public String getAttributename() {
+        return attributename;
+    }
+
+    public void setAttributename(String attributename) {
+        this.attributename = attributename;
+    }
 }

src/main/java/com/qf/myafterprojecy/pojo/dto/CategoryAttributeDto.java

@@ -0,0 +1,30 @@
+package com.qf.myafterprojecy.pojo.dto;
+
+import javax.validation.constraints.NotBlank;
+import javax.validation.constraints.NotNull;
+
+public class CategoryAttributeDto {
+    
+    @NotNull(message = "分类ID不能为空")
+    private Integer categoryid;
+    
+    @NotBlank(message = "属性名称不能为空")
+    private String attributename;
+    
+    // Getters and Setters
+    public Integer getCategoryid() {
+        return categoryid;
+    }
+    
+    public void setCategoryid(Integer categoryid) {
+        this.categoryid = categoryid;
+    }
+    
+    public String getAttributename() {
+        return attributename;
+    }
+    
+    public void setAttributename(String attributename) {
+        this.attributename = attributename;
+    }
+}