feat(消息): 添加消息点赞功能

- 在MessageController中添加点赞接口
- 在MessageRepository中添加点赞数更新方法
- 在IMessageService和MessageService中实现点赞逻辑
- 初始化测试数据时设置点赞数默认值为0
- 完善相关文档注释

src/main/java/com/qf/myafterprojecy/service/MessageService.java

@@ -16,11 +16,13 @@ import java.util.Date;
 import java.util.List;
 import java.util.Optional;
 
+import org.springframework.transaction.annotation.Transactional;
+
 @Service
 public class MessageService implements IMessageService {
-    
+
     private static final Logger logger = LoggerFactory.getLogger(MessageService.class);
-    
+
     @Autowired
     private MessageRepository messageRepository;
 
@@ -42,7 +44,7 @@ public class MessageService implements IMessageService {
             logger.warn("获取消息时ID无效: {}", id);
             return ResponseMessage.failure("消息ID无效");
         }
-        
+
         try {
             logger.info("根据ID查询消息: {}", id);
             Optional<Message> messageOptional = messageRepository.findById(id);
@@ -59,31 +61,33 @@ public class MessageService implements IMessageService {
     }
 
     @Override
+    @Transactional(rollbackFor = Exception.class)
     public ResponseMessage<Message> saveMessage(MessageDto messageDto) {
         // 参数校验
         if (messageDto == null) {
             logger.warn("保存消息时参数为空");
             throw new IllegalArgumentException("MessageDto cannot be null");
         }
-        
+
         // 业务逻辑校验
         if (StringUtils.isEmpty(messageDto.getContent())) {
             logger.warn("保存消息时内容为空");
             throw new IllegalArgumentException("Message content cannot be empty");
         }
-        
+
         if (StringUtils.isEmpty(messageDto.getNickname())) {
             logger.warn("保存消息时昵称为空");
             throw new IllegalArgumentException("Message nickname cannot be empty");
         }
-        
+
         // 调用Repository保存数据
         try {
             logger.info("保存消息: {}", messageDto.getNickname());
             Message message = new Message();
             BeanUtils.copyProperties(messageDto, message);
             message.setCreatedAt(new Date()); // 设置创建时间
-            
+            message.setLikes(0); // 设置点赞数初始值为0
+
             // 如果是回复，确保parentid有效
             if (messageDto.getParentid() != null && messageDto.getParentid() > 0) {
                 if (!messageRepository.existsById(messageDto.getParentid())) {
@@ -91,7 +95,7 @@ public class MessageService implements IMessageService {
                     return ResponseMessage.failure("回复的父消息不存在");
                 }
             }
-            
+
             Message savedMessage = messageRepository.save(message);
             logger.info("消息保存成功: {}", savedMessage.getMessageid());
             return ResponseMessage.success(savedMessage, "保存成功", true);
@@ -102,12 +106,13 @@ public class MessageService implements IMessageService {
     }
 
     @Override
+    @Transactional(rollbackFor = Exception.class)
     public ResponseMessage<Message> deleteMessage(Integer id) {
         if (id == null || id <= 0) {
             logger.warn("删除消息时ID无效: {}", id);
             return ResponseMessage.failure("消息ID无效");
         }
-        
+
         try {
             logger.info("删除消息: {}", id);
             if (messageRepository.existsById(id)) {
@@ -136,7 +141,7 @@ public class MessageService implements IMessageService {
             logger.warn("根据文章ID查询消息时ID无效: {}", articleId);
             return ResponseMessage.failure("文章ID无效");
         }
-        
+
         try {
             logger.info("根据文章ID查询消息: {}", articleId);
             List<Message> messages = messageRepository.findByArticleid(articleId);
@@ -175,13 +180,32 @@ public class MessageService implements IMessageService {
         }
     }
 
+    // 点赞数增加
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public ResponseMessage<Message> likeMessage(Integer id) {
+        if (id == null || id <= 0) {
+            logger.warn("点赞消息时ID无效: {}", id);
+            return ResponseMessage.failure("消息ID无效");
+        }
+        try {
+            logger.info("点赞消息: {}", id);
+            messageRepository.incrementLikes(id);
+            Message likedMessage = messageRepository.findById(id).orElse(null);
+            return ResponseMessage.success(likedMessage, "点赞成功", true);
+        } catch (DataAccessException e) {
+            logger.error("点赞消息失败: {}", id, e);
+            return ResponseMessage.failure("点赞消息失败：" + e.getMessage());
+        }
+    }
+
     @Override
     public ResponseMessage<List<Message>> searchMessagesByNickname(String nickname) {
         if (StringUtils.isEmpty(nickname)) {
             logger.warn("根据昵称查询消息时昵称为空");
             return ResponseMessage.failure("昵称不能为空");
         }
-        
+
         try {
             logger.info("根据昵称查询消息: {}", nickname);
             List<Message> messages = messageRepository.findByNicknameContaining(nickname);
@@ -191,8 +215,10 @@ public class MessageService implements IMessageService {
             return ResponseMessage.failure("查询消息失败：" + e.getMessage());
         }
     }
-    //删除所有评论
+
+    // 删除所有评论
     @Override
+    @Transactional(rollbackFor = Exception.class)
     public ResponseMessage<Void> deleteAllMessages() {
         try {
             logger.info("删除所有消息");
@@ -203,13 +229,14 @@ public class MessageService implements IMessageService {
             return ResponseMessage.failure("删除消息失败：" + e.getMessage());
         }
     }
+
     @Override
     public ResponseMessage<Long> getMessageCountByArticleId(Integer articleId) {
         if (articleId == null || articleId <= 0) {
             logger.warn("获取文章评论数量时ID无效: {}", articleId);
             return ResponseMessage.failure("文章ID无效");
         }
-        
+
         try {
             logger.info("获取文章评论数量: {}", articleId);
             Long count = messageRepository.countByArticleId(articleId);