我试图创建一个独立的Java应用程序作为一个websocket客户端使用这个Spring与Stomp和Sockjs，考虑到Spring规范和spring-portafolio的例子，我得到这个错误：
15:18:01.342 [main] DEBUG com.example.client.WebSocketClientTest - Connecting to : ws://localhost:8080/socket/hello
15:18:01.541 [WebSocketClient-AsyncIO-1] ERROR com.example.client.MyStompSessionHandler - Transport error
org.springframework.messaging.simp.stomp.ConnectionLostException: Connection closed
at org.springframework.messaging.simp.stomp.DefaultStompSession.afterConnectionClosed(DefaultStompSession.java:483) [spring-messaging-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.web.socket.messaging.WebSocketStompClient$WebSocketTcpConnectionHandlerAdapter.afterConnectionClosed(WebSocketStompClient.java:354) [spring-websocket-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.web.socket.sockjs.client.AbstractClientSockJsSession.afterTransportClosed(AbstractClientSockJsSession.java:321) [spring-websocket-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.web.socket.sockjs.client.WebSocketTransport$ClientSockJsWebSocketHandler.afterConnectionClosed(WebSocketTransport.java:172) [spring-websocket-4.3.2.RELEASE.jar:4.3.2.RELEASE]
at org.springframework.web.socket.adapter.standard.StandardWebSocketHandlerAdapter.onClose(StandardWebSocketHandlerAdapter.java:141) [spring-websocket-4.3.2.RELEASE.jar:4.3.2.RELEASE]...
我在java客户端的代码是：
StandardWebSocketClient webSocketClient = new StandardWebSocketClient();
List<Transport> transports = new ArrayList<>();
transports.add(new WebSocketTransport(webSocketClient));
SockJsClient sockJsClient = new SockJsClient(transports);
ThreadPoolTaskScheduler taskScheduler = new ThreadPoolTaskScheduler();
taskScheduler.afterPropertiesSet();
String stompUrl = "ws://localhost:8080/socket/hello";
WebSocketStompClient stompClient = new WebSocketStompClient(sockJsClient);
stompClient.setMessageConverter(new StringMessageConverter());
stompClient.setTaskScheduler(taskScheduler);
stompClient.setDefaultHeartbeat(new long[] {0, 0});
StompSessionHandler sessionHandler = new MyStompSessionHandler();
stompClient.connect(stompUrl, sessionHandler);
stompClient.setTaskScheduler(taskScheduler);
服务器端是使用SpringMVCStomp和SockJs制作的，服务器与javascript客户端完美配合，这是我使用的配置：
public void configureMessageBroker(MessageBrokerRegistry config) {
config.enableSimpleBroker("/topic");
config.setApplicationDestinationPrefixes("/app");
}
public void registerStompEndpoints(StompEndpointRegistry registry) {
registry.addEndpoint("/hello")
.setHandshakeHandler(new DefaultHandshakeHandler(new TomcatRequestUpgradeStrategy()))
.withSockJS();
}
我做错了什么？有人能告诉我如何修复它，或者如何创建一个Java客户端来连接Spring websocket服务器吗？
提前感谢…
我也遇到了同样的问题。原因是接收到太大的消息，默认的STOMP Spring/TomcatWS客户端无法处理，因为它无法进行部分消息传递。这个StackOverflow答案对我有用（我设置了MAX_TEXT_MESSAGE_BUFFER_SIZE=20*1024*1024）：
WebSocketContainer container = ContainerProvider.getWebSocketContainer();
container.setDefaultMaxTextMessageBufferSize(MAX_TEXT_MESSAGE_BUFFER_SIZE);
WebSocketClient wsClient = new StandardWebSocketClient(container);
设置in的MessageSizeLimit没有效果：
WebSocketStompClient stompClient = new WebSocketStompClient(sockJsClient);
stompClient.setInboundMessageSizeLimit(Integer.MAX_VALUE);
