增加评论点赞功能

src/main/java/com/youlai/boot/mini/controller/StrayAnimalNoteCommentController.java

@@ -7,6 +7,7 @@ import com.youlai.boot.common.enums.ActionTypeEnum;
 import com.youlai.boot.common.enums.LogModuleEnum;
 import com.youlai.boot.common.result.Result;
 import com.youlai.boot.framework.security.util.SecurityUtils;
+import com.youlai.boot.mini.model.form.CommentLikeForm;
 import com.youlai.boot.mini.model.form.DeleteStrayAnimalNoteCommentForm;
 import com.youlai.boot.mini.model.form.StrayAnimalNoteCommentForm;
 import com.youlai.boot.mini.model.query.AnimalNoteFirstLevelCommentQueryParam;
@@ -14,6 +15,7 @@ import com.youlai.boot.mini.model.query.AnimalNoteSecondLevelCommentQueryParam;
 import com.youlai.boot.mini.model.vo.AnimalNoteFirstLevelCommentVO;
 import com.youlai.boot.mini.model.vo.AnimalNoteSecondLevelCommentVO;
 import com.youlai.boot.mini.model.vo.StrayAnimalNoteCommentVO;
+import java.util.Map;
 import com.youlai.boot.mini.service.StrayAnimalNoteCommentService;
 import io.swagger.v3.oas.annotations.Operation;
 import io.swagger.v3.oas.annotations.tags.Tag;
@@ -76,4 +78,17 @@ public class StrayAnimalNoteCommentController {
         return Result.success(result);
     }
 
+    @Operation(summary = "评论点赞/取消点赞接口")
+    @PostMapping(value = "like/toggle")
+    @PreAuthorize("isAuthenticated()")
+    @RepeatSubmit(expire = 1)
+    @Log(module = LogModuleEnum.STRAY_ANIMAL_NOTE_COMMENT, value = ActionTypeEnum.UPDATE)
+    public Result<Map<String, Object>> toggleLike(
+        @Valid @RequestBody CommentLikeForm form
+    ) {
+        Long userId = SecurityUtils.getUserId();
+        Map<String, Object> result = strayAnimalNoteCommentService.toggleLike(form, userId);
+        return Result.success(result);
+    }
+
 }

src/main/java/com/youlai/boot/mini/mapper/MiniStrayAnimalNoteCommentLikeMapper.java

@@ -2,6 +2,7 @@ package com.youlai.boot.mini.mapper;
 
 import com.youlai.boot.mini.model.entity.MiniStrayAnimalNoteCommentLike;
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
+import org.apache.ibatis.annotations.Param;
 
 /**
 * 流浪动物笔记评论点赞表 Mapper 接口
@@ -11,4 +12,19 @@ import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 */
 public interface MiniStrayAnimalNoteCommentLikeMapper extends BaseMapper<MiniStrayAnimalNoteCommentLike> {
 
+    /**
+     * 查询用户是否点赞该评论
+     */
+    Integer selectUserLikeCount(@Param("commentId") Long commentId, @Param("userId") Long userId);
+
+    /**
+     * 新增或更新点赞记录（原子操作）
+     */
+    int insertOrUpdateLike(MiniStrayAnimalNoteCommentLike like);
+
+    /**
+     * 逻辑删除点赞记录（取消点赞）
+     */
+    int deleteLike(@Param("commentId") Long commentId, @Param("userId") Long userId, @Param("currentTime") Long currentTime);
+
 }

src/main/java/com/youlai/boot/mini/mapper/MiniStrayAnimalNoteCommentMapper.java

@@ -37,4 +37,19 @@ public interface MiniStrayAnimalNoteCommentMapper extends BaseMapper<MiniStrayAn
 
     List<MiniStrayAnimalNoteCommentLike> batchGetUserCommentLikes(@Param("noteCommentIds") List<Long> noteCommentIds, @Param("appUserId") Long appUserId);
 
+    /**
+     * 原子增加评论点赞数
+     */
+    int incrementLikeCount(@Param("commentId") Long commentId);
+
+    /**
+     * 原子减少评论点赞数
+     */
+    int decrementLikeCount(@Param("commentId") Long commentId);
+
+    /**
+     * 查询评论点赞数
+     */
+    Long selectLikeCount(@Param("commentId") Long commentId);
+
 }

src/main/java/com/youlai/boot/mini/model/form/CommentLikeForm.java

@@ -0,0 +1,19 @@
+package com.youlai.boot.mini.model.form;
+
+import io.swagger.v3.oas.annotations.media.Schema;
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
+import lombok.Data;
+
+@Data
+@Schema(description = "评论点赞请求参数")
+public class CommentLikeForm {
+
+    @NotBlank(message = "评论UUID不能为空")
+    @Schema(description = "评论UUID", requiredMode = Schema.RequiredMode.REQUIRED, example = "a1b2c3d4e5f6g7h8i9j0")
+    private String commentUuid;
+
+    @NotNull(message = "操作类型不能为空")
+    @Schema(description = "操作类型：true=点赞 false=取消点赞", requiredMode = Schema.RequiredMode.REQUIRED, allowableValues = {"true", "false"})
+    private Boolean like;
+}

src/main/java/com/youlai/boot/mini/service/StrayAnimalNoteCommentService.java

@@ -3,6 +3,7 @@ package com.youlai.boot.mini.service;
 import com.baomidou.mybatisplus.core.metadata.IPage;
 import com.baomidou.mybatisplus.extension.service.IService;
 import com.youlai.boot.mini.model.entity.MiniStrayAnimalNoteComment;
+import com.youlai.boot.mini.model.form.CommentLikeForm;
 import com.youlai.boot.mini.model.form.DeleteStrayAnimalNoteCommentForm;
 import com.youlai.boot.mini.model.form.StrayAnimalNoteCommentForm;
 import com.youlai.boot.mini.model.query.AnimalNoteFirstLevelCommentQueryParam;
@@ -11,6 +12,7 @@ import com.youlai.boot.mini.model.vo.AnimalNoteFirstLevelCommentVO;
 import com.youlai.boot.mini.model.vo.AnimalNoteSecondLevelCommentVO;
 import com.youlai.boot.mini.model.vo.StrayAnimalNoteCommentVO;
 import jakarta.validation.Valid;
+import java.util.Map;
 
 public interface StrayAnimalNoteCommentService extends IService<MiniStrayAnimalNoteComment> {
 
@@ -22,4 +24,6 @@ public interface StrayAnimalNoteCommentService extends IService<MiniStrayAnimalN
 
     IPage<AnimalNoteSecondLevelCommentVO> getSecondLevelCommentList(AnimalNoteSecondLevelCommentQueryParam queryParam, Long userId);
 
+    Map<String, Object> toggleLike(CommentLikeForm form, Long userId);
+
 }

src/main/java/com/youlai/boot/mini/service/impl/StrayAnimalNoteCommentServiceImpl.java

@@ -15,6 +15,7 @@ import com.youlai.boot.mini.mapper.MiniStrayAnimalNoteMapper;
 import com.youlai.boot.mini.model.entity.MiniStrayAnimalNote;
 import com.youlai.boot.mini.model.entity.MiniStrayAnimalNoteComment;
 import com.youlai.boot.mini.model.entity.MiniStrayAnimalNoteCommentLike;
+import com.youlai.boot.mini.model.form.CommentLikeForm;
 import com.youlai.boot.mini.model.form.DeleteStrayAnimalNoteCommentForm;
 import com.youlai.boot.mini.model.form.StrayAnimalNoteCommentForm;
 import com.youlai.boot.mini.model.query.AnimalNoteFirstLevelCommentQueryParam;
@@ -33,6 +34,7 @@ import org.springframework.transaction.annotation.Transactional;
 import java.util.*;
 import java.util.function.Function;
 import java.util.stream.Collectors;
+import com.baomidou.mybatisplus.core.toolkit.IdWorker;
 
 @Slf4j
 @Service
@@ -281,4 +283,61 @@ public class StrayAnimalNoteCommentServiceImpl extends ServiceImpl<MiniStrayAnim
         return result;
     }
 
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public Map<String, Object> toggleLike(CommentLikeForm form, Long userId) {
+        // 1. 根据评论UUID查询内部主键ID
+        Long commentId = baseMapper.selectIdByUuid(form.getCommentUuid());
+        if (commentId == null) {
+            throw new MsgException("评论不存在或已删除");
+        }
+
+        long currentTime = System.currentTimeMillis();
+        boolean targetLike = form.getLike();
+        Boolean currentLiked = null;
+
+        // 2. 查询用户当前点赞状态
+        Integer count = miniStrayAnimalNoteCommentLikeMapper.selectUserLikeCount(commentId, userId);
+        if (count != null && count > 0) {
+            currentLiked = true;
+        }
+
+        // 3. 执行点赞/取消点赞操作
+        if (targetLike) {
+            // 点赞操作：不存在则新增，存在则更新为未删除状态
+            if (!Boolean.TRUE.equals(currentLiked)) {
+                MiniStrayAnimalNoteCommentLike like = new MiniStrayAnimalNoteCommentLike();
+                like.setUuid(IdWorker.get32UUID());
+                like.setNoteCommentId(commentId);
+                like.setMiniUserId(userId);
+                like.setCreateBy(userId);
+                like.setCreateTimestamp(currentTime);
+                like.setCreateTime(new Date(currentTime));
+                like.setUpdateBy(userId);
+                like.setUpdateTimestamp(currentTime);
+                like.setUpdateTime(new Date(currentTime));
+                like.setDeleted(false);
+                miniStrayAnimalNoteCommentLikeMapper.insertOrUpdateLike(like);
+
+                // 原子增加点赞数
+                baseMapper.incrementLikeCount(commentId);
+            }
+        } else {
+            // 取消点赞操作：逻辑删除
+            if (Boolean.TRUE.equals(currentLiked)) {
+                miniStrayAnimalNoteCommentLikeMapper.deleteLike(commentId, userId, currentTime);
+
+                // 原子减少点赞数
+                baseMapper.decrementLikeCount(commentId);
+            }
+        }
+
+        // 4. 查询最新点赞数返回
+        Long likeCount = baseMapper.selectLikeCount(commentId);
+        Map<String, Object> result = new HashMap<>();
+        result.put("isLiked", targetLike);
+        result.put("likeCount", likeCount != null ? likeCount : 0);
+        return result;
+    }
+
 }

src/main/resources/mapper/mini/MiniStrayAnimalNoteCommentLikeMapper.xml

@@ -5,5 +5,38 @@
 
 <mapper namespace="com.youlai.boot.mini.mapper.MiniStrayAnimalNoteCommentLikeMapper">
 
+    <!-- 查询用户是否点赞该评论 -->
+    <select id="selectUserLikeCount" resultType="java.lang.Integer">
+        SELECT COUNT(1)
+        FROM mini_stray_animal_note_comment_like
+        WHERE note_comment_id = #{commentId}
+          AND mini_user_id = #{userId}
+          AND is_deleted = 0
+    </select>
+
+    <!-- 新增或更新点赞记录（原子操作，依赖note_comment_id和mini_user_id联合唯一索引） -->
+    <insert id="insertOrUpdateLike" parameterType="com.youlai.boot.mini.model.entity.MiniStrayAnimalNoteCommentLike">
+        INSERT INTO mini_stray_animal_note_comment_like
+        (uuid, note_comment_id, mini_user_id, create_time, create_timestamp, create_by, update_time, update_timestamp, update_by, is_deleted)
+        VALUES
+        (#{uuid}, #{noteCommentId}, #{miniUserId}, #{createTime}, #{createTimestamp}, #{createBy}, #{updateTime}, #{updateTimestamp}, #{updateBy}, #{deleted})
+        ON DUPLICATE KEY UPDATE
+            is_deleted = 0,
+            update_time = VALUES(update_time),
+            update_timestamp = VALUES(update_timestamp),
+            update_by = VALUES(update_by)
+    </insert>
+
+    <!-- 逻辑删除点赞记录（取消点赞） -->
+    <update id="deleteLike">
+        UPDATE mini_stray_animal_note_comment_like
+        SET is_deleted = 1,
+            update_time = NOW(),
+            update_timestamp = #{currentTime},
+            update_by = #{userId}
+        WHERE note_comment_id = #{commentId}
+          AND mini_user_id = #{userId}
+          AND is_deleted = 0
+    </update>
 
 </mapper>

src/main/resources/mapper/mini/MiniStrayAnimalNoteCommentMapper.xml

@@ -163,4 +163,29 @@
             AND is_deleted = 0
     </select>
 
+    <!-- 原子增加评论点赞数 -->
+    <update id="incrementLikeCount">
+        UPDATE mini_stray_animal_note_comment
+        SET like_count = like_count + 1
+        WHERE id = #{commentId}
+          AND is_deleted = 0
+    </update>
+
+    <!-- 原子减少评论点赞数 -->
+    <update id="decrementLikeCount">
+        UPDATE mini_stray_animal_note_comment
+        SET like_count = like_count - 1
+        WHERE id = #{commentId}
+          AND is_deleted = 0
+          AND like_count > 0
+    </update>
+
+    <!-- 查询评论点赞数 -->
+    <select id="selectLikeCount" resultType="java.lang.Long">
+        SELECT like_count
+        FROM mini_stray_animal_note_comment
+        WHERE id = #{commentId}
+          AND is_deleted = 0
+    </select>
+
 </mapper>