Question

使用SockJS java客户端，我正在尝试连接到Spring sockjs服务器，并且正在获得大约20Kb的消息（没有标头）的错误1009。 Javascript库工作正常。

Transport closed with CloseStatus[code=1009, reason=The decoded text message was too big 
for the output buffer and the endpoint does not support partial messages] in WebSocketClientSockJsSession
[id='9fa30eb453e14a8c8612e1064640646a, url=ws://127.0.0.1:8083/user]

我在服务器上有几个配置类（我现在不知道如果我配置这些东西的时间超过了必要的次数）：

@Configuration
@EnableWebSocket
public class WebSocketTransportConfig implements WebSocketConfigurer {
    // Important web socket setup. If big message is coming through, it may overflow the buffer and this will lead in disconnect.
    // All messages that are coming through normally (including snapshots) must be order of magnitude smaller, or connection will be broken
    // sometimes
    // There is also MaxBinaryMessageSize that we do not employ as we use Stomp, but for completeness it is also set to same values.
    // Javadoc http://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/web/socket/adapter/jetty/JettyWebSocketSession.html#setTextMessageSizeLimit-int-

    public static final int MAX_TEXT_MESSAGE_SIZE = 2048000; // 2 Megabytes.
    public static final int BUFFER_SIZE = MAX_TEXT_MESSAGE_SIZE * 5;


    private static final Logger LOGGER = LogManager.getLogger(WebSocketTransportConfig.class);

    @Override
    public void registerWebSocketHandlers(WebSocketHandlerRegistry registry) {

    }

    @Bean
    public DefaultHandshakeHandler handshakeHandler() {
        LOGGER.info("Websocket buffer size: " + BUFFER_SIZE + " bytes.");
        WebSocketPolicy policy = new WebSocketPolicy(WebSocketBehavior.SERVER);
        policy.setMaxTextMessageBufferSize(BUFFER_SIZE);
        policy.setMaxTextMessageSize(MAX_TEXT_MESSAGE_SIZE);
        policy.setMaxBinaryMessageBufferSize(BUFFER_SIZE);
        policy.setMaxBinaryMessageSize(MAX_TEXT_MESSAGE_SIZE);
        policy.setInputBufferSize( BUFFER_SIZE);
        policy.setIdleTimeout(600000);

        return new DefaultHandshakeHandler(
                new JettyRequestUpgradeStrategy(new WebSocketServerFactory(policy)));
    }
}

和

@Configuration
@EnableWebSocketMessageBroker
@EnableScheduling
public class WebSocketBrokerConfig extends WebSocketMessageBrokerConfigurationSupport implements WebSocketMessageBrokerConfigurer {


    @Override
    public void configureWebSocketTransport(WebSocketTransportRegistration registry) {
        // Increase buffers. 
        // Too little buffers may result in fatal errros when transmitting relatively large messages.
        registry.setMessageSizeLimit(WebSocketTransportConfig.MAX_TEXT_MESSAGE_SIZE);
        registry.setSendBufferSizeLimit(WebSocketTransportConfig.BUFFER_SIZE);
        super.configureWebSocketTransport(registry);
    }
}

根据Stomp spring web socket message exceeds size limit应该有帮助但是在连接Java Spring SockJS客户端时，我仍然会收到错误1009（太大的消息）。

我怀疑我可能有两个问题之一：

Java SockJS客户端也必须配置为RECEIVE更大的消息。
或者，我在服务器上仍然配置错误。

如何在Java SockJS Spring客户端上增加缓冲区大小？

Answer 1

我偶然发现了同样的问题。它完全是关于客户端的配置，而不是服务器。您可以创建 WebSocketContainer 实例并对其进行配置。

WebSocketContainer container = ContainerProvider.getWebSocketContainer();
container.setDefaultMaxBinaryMessageBufferSize(your_size);
container.setDefaultMaxTextMessageBufferSize(your_size);
WebSocketClient transport = new StandardWebSocketClient(container);
WebSocketStompClient stompClient = new WebSocketStompClient(transport);

your_size - 以字节为单位的大小。

Answer 2

如果您这样做：

SockJsClient sockJsClient = new SockJsClient(transports);
    WebSocketStompClient stompClient = new WebSocketStompClient(sockJsClient);

尝试：

stompClient.setInboundMessageSizeLimit(your_message_size_limit);

Java SockJS Spring客户端和消息大小

2 个答案: