websocket会自动断开，断开时，发送通知公告无法推送 #457

jeecg-boot/jeecg-boot-module-system/src/main/java/org/jeecg/modules/message/websocket/WebSocket.java

@@ -13,6 +13,8 @@ import javax.websocket.server.ServerEndpoint;
 
 import org.springframework.stereotype.Component;
 
+import com.alibaba.fastjson.JSONObject;
+
 import lombok.extern.slf4j.Slf4j;
 
 @Component
@@ -48,7 +50,11 @@ public class WebSocket {
     
     @OnMessage
     public void onMessage(String message) {
-    	log.info("【websocket消息】收到客户端消息:"+message);
+    	//log.info("【websocket消息】收到客户端消息:"+message);
+    	JSONObject obj = new JSONObject();
+    	obj.put("cmd", "heartcheck");//业务类型
+    	obj.put("msgTxt", "心跳响应");//消息内容
+    	session.getAsyncRemote().sendText(obj.toJSONString());
     }
     
     // 此为广播消息