Update MusicObj.java

Author: Coloryr

core/objs/music/MusicObj.java

@@ -1,6 +1,8 @@
 package com.coloryr.allmusic.server.core.objs.music;
 
-public class MusicObj {
+import org.jspecify.annotations.NonNull;
+
+public class MusicObj implements Comparable {
     /**
      * 音乐编号
      */
@@ -9,4 +11,17 @@ public class MusicObj {
      * 音乐API
      */
     public String api;
+
+    @Override
+    public int compareTo(@NonNull Object o) {
+        if (o instanceof MusicObj) {
+            MusicObj obj = (MusicObj) o;
+            int result = this.id.compareTo(obj.id);
+            if (result != 0) {
+                return result;
+            }
+            return this.api.compareTo(obj.api);
+        }
+        return 0;
+    }
 }