优化音乐库获取专辑时附带md5值

src/main/resources/mappers/MusicDataDao.xml

@@ -308,13 +308,13 @@
         from music_data
         where `file` REGEXP #{regexp,jdbcType=VARCHAR}
     </select>
-    <select id="selectAllAlbum" resultType="java.lang.String">
-        SELECT album
-        FROM music_data
+    <select id="selectAllAlbum" resultType="com.yutou.nas.mybatis.model.MusicData">
+        SELECT album,`md5`
+        FROM music_data a
         group by `album`;
     </select>
-    <select id="selectAllArtist" resultType="java.lang.String">
-        SELECT artist
+    <select id="selectAllArtist" resultType="com.yutou.nas.mybatis.model.MusicData">
+        SELECT artist,`md5`
         FROM music_data
         group by `artist`;
     </select>