Stomp java客户端

如果使用STOMP客户端进行服务器端编码时出现任何错误，我想向客户端发送警报。我在谷歌上搜索过，没有找到任何例子，但我找到了

我已经在controller中编写了以下代码

WebSocketClient transport = new StandardWebSocketClient();
WebSocketStompClient stompClient = new WebSocketStompClient(transport);
stompClient.setMessageConverter(new StringMessageConverter());
String url = "ws://localhost:8080/SpringMVCStompClient/alert";
StompSessionHandler handler = new MySessionHandler();
stompClient.connect(url, handler);

MyHandler代码是：

public class MySessionHandler extends StompSessionHandlerAdapter {
    @Override
    public void afterConnected(StompSession session, StompHeaders connectedHeaders) {
        Alert alert= new Alert();
        alert.setName("Server");
        alert.setMessage("Message from server");
        session.send("/topic/alert", alert);
    }
}

当我试图执行时，这个执行不会进入MyHandler类。这样做对吗
帮助我如何向客户发送警报

Websocket XML配置

<websocket:message-broker application-destination-prefix="/app">
        <websocket:stomp-endpoint path="/alert">
            <websocket:sockjs/>
        </websocket:stomp-endpoint>
        <websocket:simple-broker prefix="/topic"/>
    </websocket:message-broker>

客户端js代码服务

(function(angular, SockJS, Stomp) {
  angular.module("alertApp.services").service("AlertService", function($q, $timeout) {

    var service = {}, listener = $q.defer(), socket = {
      client: null,
      stomp: null
    };

    service.SOCKET_URL = "/SpringMVCStompClient/alert";
    service.ALERT_TOPIC = "/topic/alert";
    service.ALERT_BROKER = "/app/alert";

    service.receive = function() {
      return listener.promise;
    };

    service.send = function(alert) {
      socket.stomp.send(service.ALERT_BROKER, { priority: 9}, JSON.stringify({
        message: alert.message,
        name: alert.name
      }));
    };

    service.disconnect = function() {
        socket.stomp.disconnect();
    };

    var startListener = function() {
      socket.stomp.subscribe(service.ALERT_TOPIC, function(data) {
          listener.notify(JSON.parse(data.body));
      });
    };

    service.initialize = function() {
      socket.client = new SockJS(service.SOCKET_URL);
      socket.stomp = Stomp.over(socket.client);
      socket.stomp.connect({}, startListener);
    };

    return service;
  });
})(angular, SockJS, Stomp);

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为什么不简单地使用SimpMessageTemplate呢？我已经尝试过SimpleMessageTemplate，它遵循本文档。我没有从服务器收到任何警报。你能用配置和客户端代码更新你的问题吗？我已经按照本教程创建了聊天应用程序。现在，我正在尝试将该聊天应用程序转换为生成提醒，而不是聊天消息。感谢@Sergi SimpleMessageTemplate为我工作。使用SimpleMessageTemplate和STOMP java客户端向客户端发送消息有什么区别？

(function(angular, SockJS, Stomp) {
  angular.module("alertApp.services").service("AlertService", function($q, $timeout) {

    var service = {}, listener = $q.defer(), socket = {
      client: null,
      stomp: null
    };

    service.SOCKET_URL = "/SpringMVCStompClient/alert";
    service.ALERT_TOPIC = "/topic/alert";
    service.ALERT_BROKER = "/app/alert";

    service.receive = function() {
      return listener.promise;
    };

    service.send = function(alert) {
      socket.stomp.send(service.ALERT_BROKER, { priority: 9}, JSON.stringify({
        message: alert.message,
        name: alert.name
      }));
    };

    service.disconnect = function() {
        socket.stomp.disconnect();
    };

    var startListener = function() {
      socket.stomp.subscribe(service.ALERT_TOPIC, function(data) {
          listener.notify(JSON.parse(data.body));
      });
    };

    service.initialize = function() {
      socket.client = new SockJS(service.SOCKET_URL);
      socket.stomp = Stomp.over(socket.client);
      socket.stomp.connect({}, startListener);
    };

    return service;
  });
})(angular, SockJS, Stomp);