Spring websocket建立连接被卡在“打开的连接”上

Question

我在我的项目中使用spring-boot-websocket（spring-boot版本1.5.10）。我已经将其配置如下，

@Configuration
@EnableWebSocketMessageBroker
public class WebSocketConfig extends WebSocketMessageBrokerConfigurationSupport
        implements WebSocketMessageBrokerConfigurer {

    @Value( "${rabbitmq.host}" )
    private String rabbitmqHost;
    @Value( "${rabbitmq.stomp.port}" )
    private int rabbitmqStompPort;
    @Value( "${rabbitmq.username}" )
    private String rabbitmqUserName;
    @Value( "${rabbitmq.password}" )
    private String rabbitmqPassword;

    @Override
    public void configureMessageBroker( MessageBrokerRegistry registry )
    {
        registry.enableStompBrokerRelay("/topic", "/queue").setRelayHost(rabbitmqHost).setRelayPort(rabbitmqStompPort)
                .setSystemLogin(rabbitmqUserName).setSystemPasscode(rabbitmqPassword);
        registry.setApplicationDestinationPrefixes("/app");
    }

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

    @Bean
    @Override
    public WebSocketHandler subProtocolWebSocketHandler()
    {
        return new CustomSubProtocolWebSocketHandler(clientInboundChannel(), clientOutboundChannel());
    }

    @Override
    public void configureWebSocketTransport( WebSocketTransportRegistration registry )
    {
        super.configureWebSocketTransport(registry);
    }

    @Override
    public boolean configureMessageConverters( List<MessageConverter> messageConverters )
    {
        return super.configureMessageConverters(messageConverters);
    }

    @Override
    public void configureClientInboundChannel( ChannelRegistration registration )
    {
        super.configureClientInboundChannel(registration);
    }

    @Override
    public void configureClientOutboundChannel( ChannelRegistration registration )
    {
        super.configureClientOutboundChannel(registration);
    }

    @Override
    public void addArgumentResolvers( List<HandlerMethodArgumentResolver> argumentResolvers )
    {
        super.addArgumentResolvers(argumentResolvers);
    }

    @Override
    public void addReturnValueHandlers( List<HandlerMethodReturnValueHandler> returnValueHandlers )
    {
        super.addReturnValueHandlers(returnValueHandlers);
    }

}

public class CustomSubProtocolWebSocketHandler extends SubProtocolWebSocketHandler {

    private static final Logger LOGGER = LoggerFactory.getLogger(CustomSubProtocolWebSocketHandler.class);

    @Autowired
    private UserCommons userCommons;

    CustomSubProtocolWebSocketHandler(MessageChannel clientInboundChannel,
                                      SubscribableChannel clientOutboundChannel) {
        super(clientInboundChannel, clientOutboundChannel);
    }

    @Override
    public void afterConnectionEstablished(WebSocketSession session) throws Exception {
        LOGGER.info("************************************************************************************************************************New webSocket connection was established: {}", session);
        String token = session.getUri().getQuery().replace("token=", "");
        try
        {
            String user = Jwts.parser().setSigningKey(TokenConstant.SECRET)
                    .parseClaimsJws(token.replace(TokenConstant.TOKEN_PREFIX, "")).getBody().getSubject();
            Optional<UserModel> userModelOptional = userCommons.getUserByEmail(user);
            if( !userModelOptional.isPresent() )
            {
                LOGGER.error(
                        "************************************************************************************************************************Invalid token is passed with web socket request");
                throw new DataException(GeneralConstants.EXCEPTION, "Invalid user", HttpStatus.BAD_REQUEST);
            }
        }
        catch( Exception e )
        {
            LOGGER.error(GeneralConstants.ERROR, e);
        }
        super.afterConnectionEstablished(session);
    }

    @Override
    public void afterConnectionClosed(WebSocketSession session, CloseStatus closeStatus) throws Exception {
        LOGGER.error("************************************************************************************************************************webSocket connection was closed");
        LOGGER.error("Reason for closure {} Session: {} ", closeStatus.getReason(),session.getId() );
        super.afterConnectionClosed(session, closeStatus);
    }

    @Override
    public void handleTransportError(WebSocketSession session, Throwable exception) throws Exception {

        LOGGER.error("************************************************************************************************************************Connection closed unexpectedly");
        LOGGER.error(GeneralConstants.ERROR, exception);
        super.handleTransportError(session, exception);
    }
}

从客户端，我正在创建一个SockJS对象以建立连接，

let url = `/ws?token=${localStorage.getItem("access_token")}`;
        // Web Socket connection
        /* eslint-disable */
        let sockJS = new SockJS(url);
        let stompClient = Stomp.over(sockJS);
        debugger
        this.setState({
            stompObject : stompClient,
        });

但是在后端日志中，大多数情况下，连接并没有始终如一地被建立，在连接日志中，我可以看到该连接已建立并创建了会话。但是，在浏览器控制台中，我可以看到客户端向服务器发送消息，但服务器未确认该消息。

Opening the connection

有时，当我刷新浏览器10至15次时，连接建立成功。我的配置有任何错误吗？

谢谢。

Answer 1

鉴于您可以“刷新10或15次，然后建立连接，”，如果您要处理Cookie问题，我很好奇？我知道Chrome以这种方式而闻名。无论如何，请关闭所有浏览器窗口并停止浏览器，然后启动浏览器，并告诉它清除浏览历史记录，然后尝试连接。另外，请确保您已阅读实际使用的spring-boot版本的spring-boot文档版本，并在问题和寻找答案时指定了SB版本。