feat(music): 优化音乐和歌手相关数据结构和功能

- 在 MusicDTO 中添加 typeName 和 releaseDate 字段
- 在 SingerDTO 中将 type 替换为 typeId 和 typeName
- 更新 MusicServiceImpl 和 SingerServiceImpl 中的相关逻辑
- 在前端 SingerDetail 组件中使用 typeName 替换类型代码

music-houduan/src/main/java/com/test/musichouduan/dto/MusicDTO.java

@@ -86,6 +86,16 @@ public class MusicDTO {
      */
     private List<String> typeNames;
 
+    /**
+     * 音乐类型名称（字符串）
+     */
+    private String typeName;
+
+    /**
+     * 发行日期
+     */
+    private LocalDateTime releaseDate;
+
     /**
      * 是否已收藏
      */

music-houduan/src/main/java/com/test/musichouduan/dto/SingerDTO.java

@@ -33,9 +33,14 @@ public class SingerDTO {
     private String introduction;
 
     /**
-     * 歌手类型
+     * 歌手类型ID
      */
-    private SingerTypeDTO type;
+    private Long typeId;
+
+    /**
+     * 歌手类型名称
+     */
+    private String typeName;
 
     /**
      * 音乐数量

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

@@ -650,10 +650,15 @@ public class MusicServiceImpl implements MusicService {
 
         // 设置类型ID和名称列表
         if (!CollectionUtils.isEmpty(music.getTypes())) {
+            List<String> typeNames = music.getTypes().stream().map(MusicType::getName).collect(Collectors.toList());
             musicDTO.setTypeIds(music.getTypes().stream().map(MusicType::getId).collect(Collectors.toList()));
-            musicDTO.setTypeNames(music.getTypes().stream().map(MusicType::getName).collect(Collectors.toList()));
+            musicDTO.setTypeNames(typeNames);
+            musicDTO.setTypeName(String.join("、", typeNames));
         }
 
+        // 设置发行日期
+        musicDTO.setReleaseDate(music.getCreateTime());
+
         // 设置歌手ID和名称列表
         if (!CollectionUtils.isEmpty(music.getSingers())) {
             musicDTO.setSingerIds(music.getSingers().stream().map(Singer::getId).collect(Collectors.toList()));

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

@@ -217,8 +217,8 @@ public class SingerServiceImpl implements SingerService {
         singer.setCollectCount(0);
 
         // 设置歌手类型
-        if (singerDTO.getType() != null && singerDTO.getType().getId() != null) {
+        if (singerDTO.getTypeId() != null) {
-            SingerType type = singerTypeRepository.findById(singerDTO.getType().getId())
+            SingerType type = singerTypeRepository.findById(singerDTO.getTypeId())
                     .orElseThrow(() -> new BusinessException("歌手类型不存在"));
             singer.setType(type);
         }
@@ -259,8 +259,8 @@ public class SingerServiceImpl implements SingerService {
         singer.setIntroduction(singerDTO.getIntroduction());
 
         // 更新歌手类型
-        if (singerDTO.getType() != null && singerDTO.getType().getId() != null) {
+        if (singerDTO.getTypeId() != null) {
-            SingerType type = singerTypeRepository.findById(singerDTO.getType().getId())
+            SingerType type = singerTypeRepository.findById(singerDTO.getTypeId())
                     .orElseThrow(() -> new BusinessException("歌手类型不存在"));
             singer.setType(type);
         }
@@ -441,9 +441,8 @@ public class SingerServiceImpl implements SingerService {
 
         // 设置类型信息
         if (singer.getType() != null) {
-            SingerTypeDTO typeDTO = new SingerTypeDTO();
+            singerDTO.setTypeId(singer.getType().getId());
-            BeanUtils.copyProperties(singer.getType(), typeDTO);
+            singerDTO.setTypeName(singer.getType().getName());
-            singerDTO.setType(typeDTO);
         }
 
         // 设置音乐数量

music-qianduan/src/views/SingerDetail.vue

@@ -404,21 +404,6 @@ const formatFans = (count) => {
   }
 }
 
-// 获取歌手类型名称
-const getSingerTypeName = (type) => {
-  const typeMap = {
-    1: '华语男歌手',
-    2: '华语女歌手',
-    3: '华语组合',
-    4: '欧美男歌手',
-    5: '欧美女歌手',
-    6: '欧美组合',
-    7: '日韩男歌手',
-    8: '日韩女歌手',
-    9: '日韩组合'
-  }
-  return typeMap[type] || '未知'
-}
 
 // WebSocket 订阅实例
 let commentSubscription = null;
@@ -480,7 +465,7 @@ onUnmounted(() => {
         </div>
         <div class="singer-meta">
           <h1 class="singer-name">{{ singer.name }}</h1>
-          <div class="singer-type">类型：{{ getSingerTypeName(singer.type) }}</div>
+          <div class="singer-type">类型：{{ singer.typeName }}</div>
           <div class="singer-stats">
             <div class="stat-item">
               <div class="stat-value">{{ singer.musicCount }}</div>