小编Moh*_*han的帖子

我的 websocket 客户端是在 STOMP Java 客户端（Spring 项目）中开发的，服务器是在 Spring boot 中实现的。

当客户端/服务器握手发生时，我遇到连接升级问题。

Java客户端代码

List<Transport> transports = new ArrayList<>(1);
transports.add(new WebSocketTransport(new StandardWebSocketClient()));      

SockJsClient sockjsClient = new SockJsClient(transports);   

WebSocketStompClient stompClient = new WebSocketStompClient(sockjsClient);

stompClient.setMessageConverter(new MappingJackson2MessageConverter());

stompClient.setTaskScheduler(new ConcurrentTaskScheduler());

StompSessionHandler sessionHandler = new SessionHandler();
stompClient.connect("ws://localhost:9090/health", sessionHandler);

服务器端

@Override
public void registerStompEndpoints(StompEndpointRegistry stompEndpointRegistry) {       
    stompEndpointRegistry.addEndpoint("/health")
            .setAllowedOrigins("*")
            .withSockJS();
}
@Override
public void configureMessageBroker(MessageBrokerRegistry registry) {
    registry.enableSimpleBroker("/topic");
    registry.setApplicationDestinationPrefixes("/app");
}

连接到服务器时客户端产生异常

16：18：50.955/3771 [SimpleAsyncTaskExecutor-1]错误oswsscDefaultTransportRequest - TransportRequest之后不再有后备传输[url=ws://localhost:9090/health/29/344d627baac949f5bab5506f05f1a7eb/websocket]
javax.websocket.DeploymentException：来自服务器 [200] 的 HTTP 响应不允许 HTTP 升级到 WebSocket
               在org.apache.tomcat.websocket.WsWebSocketContainer.connectToServerRecursive（WsWebSocketContainer.java:434）
               在org.apache.tomcat.websocket.WsWebSocketContainer.connectToServerRecursive（WsWebSocketContainer.java:392）
               在 org.apache.tomcat.websocket.WsWebSocketContainer.connectToServer(WsWebSocketContainer.java:194)
               在 org.springframework.web.socket.client.standard.StandardWebSocketClient.lambda$doHandshakeInternal$0(StandardWebSocketClient.java:150) …