feat(singer): 添加歌手评论和收藏功能

- 在 CommentServiceImpl 中增加对歌手评论的处理逻辑- 在 SingerServiceImpl 中实现歌手收藏和取消收藏的功能
- 在前端 SingerDetail 组件中添加歌手的评论数、收藏数显示和相关操作

music-houduan/src/main/java/com/test/musichouduan/service/impl/CommentServiceImpl.java

@@ -11,6 +11,7 @@ import com.test.musichouduan.exception.BusinessException;
 import com.test.musichouduan.repository.CommentRepository;
 import com.test.musichouduan.repository.MusicRepository;
 import com.test.musichouduan.repository.PlaylistRepository;
+import com.test.musichouduan.repository.SingerRepository;
 import com.test.musichouduan.repository.UserRepository;
 import com.test.musichouduan.service.CommentService;
 import org.springframework.messaging.simp.SimpMessagingTemplate; // 添加导入
@@ -48,6 +49,9 @@ public class CommentServiceImpl implements CommentService {
     @Autowired
     private PlaylistRepository playlistRepository;
 
+    @Autowired
+    private SingerRepository singerRepository;
+
     @Autowired
     private SimpMessagingTemplate messagingTemplate; // 注入 SimpMessagingTemplate
 
@@ -131,6 +135,12 @@ public class CommentServiceImpl implements CommentService {
                 playlist.setCommentCount((int) commentCount);
                 playlistRepository.save(playlist);
             });
+        } else if (savedComment.getTargetType() == 3) { // 3 代表歌手
+            singerRepository.findById(savedComment.getTargetId()).ifPresent(singer -> {
+                long commentCount = commentRepository.countByTargetIdAndTargetType(savedComment.getTargetId(), 3);
+                singer.setCommentCount((int) commentCount);
+                singerRepository.save(singer);
+            });
         }
 
         // 将新评论转换为DTO
@@ -176,6 +186,12 @@ public class CommentServiceImpl implements CommentService {
                 playlist.setCommentCount((int) commentCount);
                 playlistRepository.save(playlist);
             });
+        } else if (comment.getTargetType() == 3) {
+            singerRepository.findById(comment.getTargetId()).ifPresent(singer -> {
+                long commentCount = commentRepository.countByTargetIdAndTargetType(comment.getTargetId(), 3);
+                singer.setCommentCount((int) commentCount);
+                singerRepository.save(singer);
+            });
         }
 
         // 如果是父评论，同时删除子评论
@@ -279,6 +295,27 @@ public class CommentServiceImpl implements CommentService {
         // 删除评论
         commentRepository.delete(comment);
 
+        // 更新相关实体的评论数
+        if (comment.getTargetType() == 1) {
+            musicRepository.findById(comment.getTargetId()).ifPresent(music -> {
+                long commentCount = commentRepository.countByTargetIdAndTargetType(comment.getTargetId(), 1);
+                music.setCommentCount((int) commentCount);
+                musicRepository.save(music);
+            });
+        } else if (comment.getTargetType() == 2) {
+            playlistRepository.findById(comment.getTargetId()).ifPresent(playlist -> {
+                long commentCount = commentRepository.countByTargetIdAndTargetType(comment.getTargetId(), 2);
+                playlist.setCommentCount((int) commentCount);
+                playlistRepository.save(playlist);
+            });
+        } else if (comment.getTargetType() == 3) {
+            singerRepository.findById(comment.getTargetId()).ifPresent(singer -> {
+                long commentCount = commentRepository.countByTargetIdAndTargetType(comment.getTargetId(), 3);
+                singer.setCommentCount((int) commentCount);
+                singerRepository.save(singer);
+            });
+        }
+
         // 如果是父评论，同时删除子评论
         if (comment.getParentId() == null) {
             List<Comment> children = commentRepository.findByParentIdOrderByCreateTimeAsc(id);

music-houduan/src/main/java/com/test/musichouduan/service/impl/SingerServiceImpl.java

@@ -237,6 +237,10 @@ public class SingerServiceImpl implements SingerService {
         // 收藏歌手
         userSingerRepository.collectSinger(user.getId(), singer.getId());
 
+        // 更新收藏数
+        singer.setCollectCount(singer.getCollectCount() + 1);
+        singerRepository.save(singer);
+
         return true;
     }
 
@@ -260,6 +264,10 @@ public class SingerServiceImpl implements SingerService {
         // 取消收藏歌手
         userSingerRepository.uncollectSinger(user.getId(), singer.getId());
 
+        // 更新收藏数
+        singer.setCollectCount(singer.getCollectCount() - 1);
+        singerRepository.save(singer);
+
         return true;
     }
 

music-qianduan/src/views/SingerDetail.vue

@@ -183,6 +183,12 @@ const toggleCollect = async () => {
     const res = await toggleCollectSinger(singerId.value)
     if (res.code === 200) {
       isCollected.value = !isCollected.value
+      // 更新收藏数
+      if (isCollected.value) {
+        singer.value.collectCount++
+      } else {
+        singer.value.collectCount--
+      }
       ElMessage.success(isCollected.value ? '收藏成功' : '已取消收藏')
     } else {
       ElMessage.error(res.message || '操作失败')
@@ -274,6 +280,8 @@ const submitComment = async (isReply = false) => {
         commentContent.value = ''
       }
       ElMessage.success('评论已发送')
+      // 更新评论数
+      singer.value.commentCount++
     } else {
       ElMessage.error(res.message || '评论失败')
     }
@@ -295,6 +303,8 @@ const deleteComment = async (commentId) => {
     const res = await apiDeleteComment(commentId)
     if (res.code === 200) {
       comments.value = comments.value.filter(c => c.id !== commentId)
+      // 更新评论数
+      singer.value.commentCount--
       ElMessage.success('评论已删除')
     } else {
       ElMessage.error(res.message || '删除失败')
@@ -414,6 +424,14 @@ onUnmounted(() => {
               <div class="stat-value">{{ formatFans(singer.fansCount || 0) }}</div>
               <div class="stat-label">粉丝数</div>
             </div>
+            <div class="stat-item">
+              <div class="stat-value">{{ singer.collectCount || 0 }}</div>
+              <div class="stat-label">收藏数</div>
+            </div>
+            <div class="stat-item">
+              <div class="stat-value">{{ singer.commentCount || 0 }}</div>
+              <div class="stat-label">评论数</div>
+            </div>
           </div>
           <div class="singer-intro">{{ singer.introduction }}</div>
 
@@ -500,7 +518,7 @@ onUnmounted(() => {
 
 
 
-        <el-tab-pane label="评论">
+        <el-tab-pane :label="`评论(${singer.commentCount || 0})`">
           <!-- 评论输入框 -->
           <div class="comment-input">
             <el-input