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feat(comment): 新增删除评论功能

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- 新增删除评论接口，支持物理删除评论及关联内容
- 添加权限校验，仅允许评论创建者删除评论- 使用编程式事务保证删除操作的原子性- 删除评论后清理 Redis 缓存（ZSet 和 String 类型）
- 发送 MQ 消息异步更新计数、删除关联数据及本地缓存
- 新增 DeleteCommentReqVO 请求参数类校验评论 ID
- 补充 KeyValueRpcService 删除评论内容方法
- 新增相关 MQ Topic 常量及响应码枚举
- 更新 HTTP 接口测试用例
This commit is contained in:
Hanserwei
2025-11-09 14:12:24 +08:00
parent 93ca81a15b
commit 85e0238857
8 changed files with 177 additions and 4 deletions
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10
han-note-comment/han-note-comment-biz/src/main/java/com/hanserwei/hannote/comment/biz/constants/MQConstants.java
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@@ -22,6 +22,16 @@ public interface MQConstants {
*/
String TOPIC_COMMENT_LIKE_OR_UNLIKE = "CommentLikeUnlikeTopic";
/**
* Topic: 删除本地缓存 —— 评论详情
*/
String TOPIC_DELETE_COMMENT_LOCAL_CACHE = "DeleteCommentDetailLocalCacheTopic";
/**
* Topic: 删除评论
*/
String TOPIC_DELETE_COMMENT = "DeleteCommentTopic";
/**
* Tag 标签：点赞
*/

6
han-note-comment/han-note-comment-biz/src/main/java/com/hanserwei/hannote/comment/biz/controller/CommentController.java
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@@ -51,4 +51,10 @@ public class CommentController {
return commentService.unlikeComment(unLikeCommentReqVO);
}
@PostMapping("/delete")
@ApiOperationLog(description = "删除评论")
public Response<?> deleteComment(@Validated @RequestBody DeleteCommentReqVO deleteCommentReqVO) {
return commentService.deleteComment(deleteCommentReqVO);
}
}

1
han-note-comment/han-note-comment-biz/src/main/java/com/hanserwei/hannote/comment/biz/enums/ResponseCodeEnum.java
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@@ -17,6 +17,7 @@ public enum ResponseCodeEnum implements BaseExceptionInterface {
PARENT_COMMENT_NOT_FOUND("COMMENT-20000", "此父评论不存在"),
COMMENT_ALREADY_LIKED("COMMENT-20002", "您已经点赞过该评论"),
COMMENT_NOT_LIKED("COMMENT-20003", "您未点赞该评论，无法取消点赞"),
COMMENT_CANT_OPERATE("COMMENT-20004", "您无法操作该评论"),
;
// 异常码

18
han-note-comment/han-note-comment-biz/src/main/java/com/hanserwei/hannote/comment/biz/model/vo/DeleteCommentReqVO.java Normal file
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@@ -0,0 +1,18 @@
package com.hanserwei.hannote.comment.biz.model.vo;
import jakarta.validation.constraints.NotNull;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;
@Data
@AllArgsConstructor
@NoArgsConstructor
@Builder
public class DeleteCommentReqVO {
@NotNull(message = "评论 ID 不能为空")
private Long commentId;
}

31
han-note-comment/han-note-comment-biz/src/main/java/com/hanserwei/hannote/comment/biz/rpc/KeyValueRpcService.java
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@@ -6,14 +6,12 @@ import com.hanserwei.framework.common.constant.DateConstants;
import com.hanserwei.framework.common.response.Response;
import com.hanserwei.hannote.comment.biz.model.bo.CommentBO;
import com.hanserwei.hannote.kv.api.KeyValueFeignApi;
import com.hanserwei.hannote.kv.dto.req.BatchAddCommentContentReqDTO;
import com.hanserwei.hannote.kv.dto.req.BatchFindCommentContentReqDTO;
import com.hanserwei.hannote.kv.dto.req.CommentContentReqDTO;
import com.hanserwei.hannote.kv.dto.req.FindCommentContentReqDTO;
import com.hanserwei.hannote.kv.dto.req.*;
import com.hanserwei.hannote.kv.dto.resp.FindCommentContentRspDTO;
import jakarta.annotation.Resource;
import org.springframework.stereotype.Component;
import java.time.LocalDateTime;
import java.util.List;
import java.util.Objects;
@@ -81,4 +79,29 @@ public class KeyValueRpcService {
return response.getData();
}
/**
* 删除评论内容
*
* @param noteId 笔记ID
* @param createTime 创建时间
* @param contentId 评论内容ID
* @return 是否成功
*/
public boolean deleteCommentContent(Long noteId, LocalDateTime createTime, String contentId) {
DeleteCommentContentReqDTO deleteCommentContentReqDTO = DeleteCommentContentReqDTO.builder()
.noteId(noteId)
.yearMonth(DateConstants.DATE_FORMAT_Y_M.format(createTime))
.contentId(contentId)
.build();
// 调用 KV 存储服务
Response<?> response = keyValueFeignApi.deleteCommentContent(deleteCommentContentReqDTO);
if (!response.isSuccess()) {
throw new RuntimeException("删除评论内容失败");
}
return true;
}
}

8
han-note-comment/han-note-comment-biz/src/main/java/com/hanserwei/hannote/comment/biz/service/CommentService.java
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@@ -46,4 +46,12 @@ public interface CommentService extends IService<CommentDO> {
* @return 响应
*/
Response<?> unlikeComment(UnLikeCommentReqVO unLikeCommentReqVO);
/**
* 删除评论
*
* @param deleteCommentReqVO 删除评论请求
* @return 响应
*/
Response<?> deleteComment(DeleteCommentReqVO deleteCommentReqVO);
}

98
han-note-comment/han-note-comment-biz/src/main/java/com/hanserwei/hannote/comment/biz/service/impl/CommentServiceImpl.java
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@@ -52,6 +52,7 @@ import org.springframework.messaging.support.MessageBuilder;
import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
import org.springframework.scripting.support.ResourceScriptSource;
import org.springframework.stereotype.Service;
import org.springframework.transaction.support.TransactionTemplate;
import java.time.LocalDateTime;
import java.util.*;
@@ -82,6 +83,8 @@ public class CommentServiceImpl extends ServiceImpl<CommentDOMapper, CommentDO>
private ThreadPoolTaskExecutor threadPoolTaskExecutor;
@Resource
private CommentLikeDOMapper commentLikeDOMapper;
@Resource
private TransactionTemplate transactionTemplate;
/**
* 评论详情本地缓存
@@ -620,6 +623,101 @@ public class CommentServiceImpl extends ServiceImpl<CommentDOMapper, CommentDO>
return Response.success();
}
@Override
@SuppressWarnings("unchecked")
public Response<?> deleteComment(DeleteCommentReqVO deleteCommentReqVO) {
// 被删除的评论 ID
Long commentId = deleteCommentReqVO.getCommentId();
// 1. 校验评论是否存在
CommentDO commentDO = commentDOMapper.selectById(commentId);
if (Objects.isNull(commentDO)) {
throw new ApiException(ResponseCodeEnum.COMMENT_NOT_FOUND);
}
// 2. 校验是否有权限删除
Long currUserId = LoginUserContextHolder.getUserId();
if (!Objects.equals(currUserId, commentDO.getUserId())) {
throw new ApiException(ResponseCodeEnum.COMMENT_CANT_OPERATE);
}
// 3. 物理删除评论、评论内容
// 编程式事务，保证多个操作的原子性
transactionTemplate.execute(status -> {
try {
// 删除评论元数据
commentDOMapper.deleteById(commentId);
// 删除评论内容
keyValueRpcService.deleteCommentContent(commentDO.getNoteId(),
commentDO.getCreateTime(),
commentDO.getContentUuid());
return null;
} catch (Exception ex) {
status.setRollbackOnly(); // 标记事务为回滚
log.error("", ex);
throw ex;
}
});
// 4. 删除 Redis 缓存（ZSet 和 String）
Integer level = commentDO.getLevel();
Long noteId = commentDO.getNoteId();
Long parentCommentId = commentDO.getParentId();
// 根据评论级别，构建对应的 ZSet Key
String redisZSetKey = Objects.equals(level, 1) ?
RedisKeyConstants.buildCommentListKey(noteId) : RedisKeyConstants.buildChildCommentListKey(parentCommentId);
// 使用 RedisTemplate 执行管道操作
redisTemplate.executePipelined(new SessionCallback<>() {
@Override
public Object execute(@NonNull RedisOperations operations) {
// 删除 ZSet 中对应评论 ID
operations.opsForZSet().remove(redisZSetKey, commentId);
// 删除评论详情
operations.delete(RedisKeyConstants.buildCommentDetailKey(commentId));
return null;
}
});
// 5. 发布广播 MQ, 将本地缓存删除
rocketMQTemplate.asyncSend(MQConstants.TOPIC_DELETE_COMMENT_LOCAL_CACHE, commentId, new SendCallback() {
@Override
public void onSuccess(SendResult sendResult) {
log.info("==> 【删除评论详情本地缓存】MQ 发送成功，SendResult: {}", sendResult);
}
@Override
public void onException(Throwable throwable) {
log.error("==> 【删除评论详情本地缓存】MQ 发送异常: ", throwable);
}
});
// 6. 发送 MQ, 异步去更新计数、删除关联评论、热度值等
// 构建消息对象，并将 DO 转成 Json 字符串设置到消息体中
Message<String> message = MessageBuilder.withPayload(JsonUtils.toJsonString(commentDO))
.build();
// 异步发送 MQ 消息，提升接口响应速度
rocketMQTemplate.asyncSend(MQConstants.TOPIC_DELETE_COMMENT, message, new SendCallback() {
@Override
public void onSuccess(SendResult sendResult) {
log.info("==> 【评论删除】MQ 发送成功，SendResult: {}", sendResult);
}
@Override
public void onException(Throwable throwable) {
log.error("==> 【评论删除】MQ 发送异常: ", throwable);
}
});
return Response.success();
}
/**
* 初始化评论点赞布隆过滤器
*