首页 > 解决方案 > 带有 SockJS 连接丢失问题的 Spring Websocket

问题描述

我正在使用 spring boot、angular cli 和 sockjs 开发一个 Web 应用程序。

WebSocket 实现:

@Configuration
@EnableWebSocketMessageBroker
public class WebSocketConfig extends AbstractSecurityWebSocketMessageBrokerConfigurer {

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

    @Override
    public void configureMessageBroker(MessageBrokerRegistry registry) {
        registry.enableSimpleBroker("/info", "/user", "/notif");
        registry.setApplicationDestinationPrefixes("/app");
    }
}

Angular websocket 实用程序实现:

注意:该类用于连接web socket和订阅例程!

@Injectable()
export class WebSocketUtil {

  stompClient = null;

  constructor() {
  }

  connect(subscribers: Subscriber[] = null) {
    let _this = this;
    let socket = new SockJS("https://localhost/ws");
    if (socket != null) {
      this.stompClient = Stomp.over(socket);
      if (this.stompClient != null) {
        console.log("Stomp client is connected!");

        let headers = {};
        headers["X-CSRF-TOKEN"] = ...;// csrf code

        this.stompClient.connect(headers, (frame) => {
          subscribers.forEach((subscriber) => {
            _this.stompClient.subscribe(subscriber.URL, subscriber.CALLBACK);
          });
        }, () => {
          console.log(_this.stompClient);
        });
      } else {
        throw {
          name: "StompClientNotRegistered",
          message: "Stomp client is not registered!"
        };
      }
    } else {
      throw {
        name: "SocketEstablishFailed",
        message: "Socket cannot be established!"
      };
    }
  }

  send(message) {
    this.stompClient.send(message.url, JSON.stringify(message.params));
  }
}

Angular 订阅者类实现:

注意:此类用于将订阅例程绑定到 stomp 客户端!

export class Subscriber {
  constructor(private url: string = "", private callback: any) {
  }

  get URL() {
    return this.url;
  }

  get CALLBACK() {
    return this.callback;
  }
}

WebsocketUtil 用法:

注意:这段代码是在视图初始化阶段之后调用的。

this.webSocketUtil.connect([
      new Subscriber("/notif", function (data) {
        console.log(data);
      }),
      new Subscriber("/user", function (data) {
        console.log(data);
      })
    ]);

上面的代码在 Web 浏览器(FF 和 chrome)控制台中导致以下错误:

浏览器错误!

注意:可以访问https://localhost/ws并返回“欢迎使用 SockJS!” 信息。

标签: angularspring-bootspring-websocketsockjs

解决方案


最后,我解决了以下几点的问题:

  1. 将适当的重写配置添加到 Apache2 配置中-我忽略了它:(

    ...
    
    RewriteEngine On
    RewriteCond %{HTTP:Upgrade} =websocket [NC]
    RewriteRule ^/ws/(.*)       ws://localhost:8080/ws/$1 [P,L]    
    
    ...
    
  2. 在安全配置类中为/ws请求添加 permit-all 权限:

    @Configuration @EnableWebSecurity 公共类 WebSecurityConfig 扩展 WebSecurityConfigurerAdapter {

    ...
    
    @Override
    protected void configure(HttpSecurity http) throws Exception {
        ...
        http.authorizeRequests().antMatchers("/ws/**").permitAll();
        ...
    }
    

    }

  3. 在 websocket 配置类中为 SimpTypes 添加 permit-all 权限:

    @Configuration @EnableWebSocketMessageBroker 公共类 WebSocketConfig 扩展 AbstractSecurityWebSocketMessageBrokerConfigurer { ...

    @Override
    protected void configureInbound(MessageSecurityMetadataSourceRegistry messages) {
        messages.simpTypeMatchers(SimpMessageType.CONNECT, SimpMessageType.SUBSCRIBE, SimpMessageType.HEARTBEAT,
                SimpMessageType.UNSUBSCRIBE, SimpMessageType.DISCONNECT).permitAll();
    }
    

    }


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