fix bug

services/mogo-service-api/src/main/java/com/mogo/service/connection/IMogoOnWebSocketMessageListener.java

@@ -3,21 +3,25 @@ package com.mogo.service.connection;
 /**
  * 消息回调
  */
-public interface IMogoOnWebSocketMessageListener< T > {
+public interface IMogoOnWebSocketMessageListener<T> {
 
-    default WebSocketMsgType getDownLinkType(){
+    default WebSocketMsgType getDownLinkType() {
         return null;
     }
 
-    default WebSocketMsgType getUpLinkType(){
+    default WebSocketMsgType getUpLinkType() {
         return null;
     }
 
-    default void onMsgReceived(T obj){
+    default Class<T> target() {
+        return null;
+    }
+
+    default void onMsgReceived(T obj) {
 
     }
 
-    default void onError(String errorMsg){
+    default void onError(String errorMsg) {
 
     }
 }