由于升级标头无效，Spring 启动 Websockets 握手失败：null

Question

我正在使用 spring boot 2.1.6 RELEASE，尝试使用 Stomp websockets 进行推送通知。我从这里参考： https: //github.com/netgloo/spring-boot-samples/tree/master/spring-boot-web-socket-user-notification

在我当地一切正常。当部署到具有 HTTPS 连接的服务器时，我在日志中看到的只是此内容。

Handshake failed due to invalid Upgrade header: null

并在浏览器上

Websocket.js:6 WebSocket connection to 'wss://dev.myserver.in/ws/055/chbvjkl4/websocket' failed

我浏览了数十篇 stackoverflow 帖子，几乎每个人都在使用代理服务器。我没有使用任何代理服务器。（请告诉我是否应该使用它以及为什么）

代码片段：

@Configuration
@EnableWebSocketMessageBroker
public class WebSocketConfig implements WebSocketMessageBrokerConfigurer {

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

}

这是我现在允许 websocket 请求的方式

@Override
    public void configure(WebSecurity web) throws Exception {

        // Tell Spring to ignore securing the handshake endpoint. This allows the
        // handshake to take place unauthenticated
        web.ignoring().antMatchers("/ws/**");

    }

将在特定操作上调用的推送通知服务：

@Service
public class PushNotificationService {

    @Autowired
    private SimpMessagingTemplate simpMessagingTemplate;
    
    /**
     * Send notification to users subscribed on channel "/user/queue/notify".
     * The message will be sent only to the user with the given username.
     * 
     * @param notification The notification message.
     * @param username     The username for the user to send notification.
     */
    public void sendPushNotification(Notifications notification, String username) {
        simpMessagingTemplate.convertAndSendToUser(username, "/queue/notify", notification);
        return;
    }
}

在前端：

function connect() {
        // Create and init the SockJS object
        var socket = new SockJS('/ws');
        var stompClient = Stomp.over(socket);

        // Subscribe the '/notify' channel
        stompClient.connect({}, function(frame) {
          stompClient.subscribe('/user/queue/notify', function(notification) {
            notify(JSON.parse(notification.body));

          });
        });

这是通知

function notify(message) {
    let notificationTitle = message.status;
    let body = message.createdOn;
    let link = message.url;
    if(Notification.permission === "granted") {
        showPushNotification(notificationTitle,body,link);
    }
    else {
        Notification.requestPermission(permission => {
            if(permission === 'granted') {
                showPushNotification(notificationTitle,body,link);
            }
        });
    }
}

Answer 1

如果你不使用代理nginx，你应该配置 spring boot 支持https。