我尝试使用web套接字将一些对象从java服务器传输到有角度的web页面

当我尝试将angular中的前端应用程序与java中的服务器连接起来，以便将一些对象从java发送到angular时，连接被拒绝，出现如下错误：GET net:：ERR_connection_Deced。什么会导致这种问题

角度代码：

 import * as Stomp from 'stompjs';
 import * as Socket from 'socket.io-client';

 serverUrl = 'http://localhost:8082/ws'
 notify= "/notify/activity"

initializeWebSocketConnection(){
   let ws = new Socket(this.serverUrl);
   this.stompClient = Stomp.over(ws);
   let that = this;
   this.stompClient.connect({}, function(frame) {
     that.stompClient.subscribe(this.notify, (message) => {
       this.dangerousActivity=message;
       console.log(message);
     });
   });
 }

Java代码：

 @MessageMapping("/send/message")
    public void onReceivedMesage(String message){
        this.template.convertAndSend("/notify",  new SimpleDateFormat("HH:mm:ss").format(new Date())+"- "+message);
    }

 @Override
    public void registerStompEndpoints(StompEndpointRegistry registry) {
        registry.addEndpoint("/socket")
                .setAllowedOrigins("*")
                .withSockJS();
    }

   @Override
   public void configureMessageBroker(MessageBrokerRegistry registry) {
       registry.setApplicationDestinationPrefixes("/app")
               .enableSimpleBroker("/notify");
   }

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我认为FE应用程序上的协议不正确！它应该是

ws://

而不是

http://

（serverUrl:

ws://localhost:8082/ws

）