Question

我正在使用spring-integration-ip-4.3.12。

要控制音频设备，我会通过以太网接口向此设备发送一些命令，例如setVolumeValue / getVolumeValue或setMuteState / getMuteState。对于通信，我使用spring-integration-ip。

我创建了一个tcp客户端（TcpConfig.java），然后通过MessagingGateway（TcpCommunicationHandler.java）将消息发送到外部Tcp-Server。该命令以SET的命令0x02和GET命令的0x04符号开头，所有符号都以0x03结尾。响应消息具有相同的结尾唱。为此，我为序列化程序和反序列化程序添加了ByteArraySingleTerminatorSerializer。

现在，当我通过按下按钮发送一些消息时。之后我收到一条错误信息。见下文。

请你帮我找一下这个例外的原因吗？

TcpConfig.java：

      @Bean
      public AbstractClientConnectionFactory connectionFactory() {
        final String hostName = configuration.getHostName();
        final int port = configuration.getPort();
        LOGGER.debug("[cx.service.crestron] TcpNetClientConnectionFactory trying to connect to {}:{}", hostName, port);
        return new TcpNetClientConnectionFactory(hostName, port);
      }

      @Bean
      @ServiceActivator(inputChannel = "toTcp")
      public MessageHandler tcpOutGate(AbstractClientConnectionFactory connectionFactory) throws Exception {
        LOGGER.debug("[cx.service.crestron] creating new TcpOutboundGateway as MessageHandler..");
        final TcpOutboundGateway gate = new TcpOutboundGateway();
        connectionFactory.setSerializer(serializer());
        connectionFactory.setDeserializer(serializer());
        connectionFactory.setSingleUse(true);
        gate.setRequiresReply(true);
        gate.setConnectionFactory(connectionFactory);
        return gate;
      }

      @Bean
      public ByteArraySingleTerminatorSerializer serializer() {
        return new ByteArraySingleTerminatorSerializer((byte) 0x03);
      }

TcpCommunicationHandler.java

@MessagingGateway(defaultRequestChannel = "toTcp")
public interface TcpCommunicationHandler extends AutoCloseable, Closeable {

  public abstract byte[] executeCommand(final String command);

}

错误日志：

2017-11-17 16:36:29.111 ERROR 1656 --- [JavaFX Application Thread] o.s.i.ip.tcp.TcpOutboundGateway          : Tcp Gateway exception

org.springframework.integration.MessageTimeoutException: Timed out waiting for response
    at org.springframework.integration.ip.tcp.TcpOutboundGateway.handleRequestMessage(TcpOutboundGateway.java:146)
    at org.springframework.integration.handler.AbstractReplyProducingMessageHandler.handleMessageInternal(AbstractReplyProducingMessageHandler.java:109)
    at org.springframework.integration.handler.AbstractMessageHandler.handleMessage(AbstractMessageHandler.java:127)
    at org.springframework.integration.dispatcher.AbstractDispatcher.tryOptimizedDispatch(AbstractDispatcher.java:116)
    at org.springframework.integration.dispatcher.UnicastingDispatcher.doDispatch(UnicastingDispatcher.java:148)
    at org.springframework.integration.dispatcher.UnicastingDispatcher.dispatch(UnicastingDispatcher.java:121)
    at org.springframework.integration.channel.AbstractSubscribableChannel.doSend(AbstractSubscribableChannel.java:89)
    at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:425)
    at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:375)
    at org.springframework.messaging.core.GenericMessagingTemplate.doSend(GenericMessagingTemplate.java:115)
    at org.springframework.messaging.core.GenericMessagingTemplate.doSendAndReceive(GenericMessagingTemplate.java:150)
    at org.springframework.messaging.core.GenericMessagingTemplate.doSendAndReceive(GenericMessagingTemplate.java:45)
    at org.springframework.messaging.core.AbstractMessagingTemplate.sendAndReceive(AbstractMessagingTemplate.java:42)
    at org.springframework.integration.core.MessagingTemplate.sendAndReceive(MessagingTemplate.java:97)
    at org.springframework.integration.core.MessagingTemplate.sendAndReceive(MessagingTemplate.java:38)
    at org.springframework.messaging.core.AbstractMessagingTemplate.convertSendAndReceive(AbstractMessagingTemplate.java:79)
    at org.springframework.messaging.core.AbstractMessagingTemplate.convertSendAndReceive(AbstractMessagingTemplate.java:70)
    at org.springframework.integration.gateway.MessagingGatewaySupport.doSendAndReceive(MessagingGatewaySupport.java:449)
    at org.springframework.integration.gateway.MessagingGatewaySupport.sendAndReceive(MessagingGatewaySupport.java:422)
    at org.springframework.integration.gateway.GatewayProxyFactoryBean.invokeGatewayMethod(GatewayProxyFactoryBean.java:478)
    at org.springframework.integration.gateway.GatewayProxyFactoryBean.doInvoke(GatewayProxyFactoryBean.java:433)
    at org.springframework.integration.gateway.GatewayProxyFactoryBean.invoke(GatewayProxyFactoryBean.java:424)
    at org.springframework.integration.gateway.GatewayCompletableFutureProxyFactoryBean.invoke(GatewayCompletableFutureProxyFactoryBean.java:65)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)

在repsonse消息期间的Tcp网关异常

0 个答案: