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我想设置Spring TCP Server-Client应用程序。我需要一个服务器监听端口上的传入消息，例如6666，并且客户端在不同的端口上发送消息，例如7777.我遵循documentation，但我坚持客户期望的问题收到回复，但实际上，另一端只会收到来自客户端的消息，不会发送任何回应。所以，基本上，我不断收到此错误：Spring Integration TCP
o.s.i.ip.tcp.TcpOutboundGateway : Tcp Gateway exception
org.springframework.integration.MessageTimeoutException: Timed out waiting for response
我发现this答案类似的问题，所以我想答案在我的代码整合。这是我的配置类：
@EnableIntegration
@IntegrationComponentScan
@Configuration
public class Config {
private int port = 6666;
@MessagingGateway(defaultRequestChannel = "toTcp")
public interface Gateway {
String viaTcp(String in);
}
@Bean
@ServiceActivator(inputChannel = "toTcp")
public TcpOutboundGateway tcpOutGate(AbstractClientConnectionFactory connectionFactory) {
TcpOutboundGateway gate = new TcpOutboundGateway();
gate.setConnectionFactory(connectionFactory);
gate.setOutputChannelName("resultToString");
gate.setRequiresReply(false);
return gate;
}
@Bean
public TcpInboundGateway tcpInGate(AbstractServerConnectionFactory connectionFactory) {
TcpInboundGateway inGate = new TcpInboundGateway();
inGate.setConnectionFactory(connectionFactory);
inGate.setRequestChannel(fromTcp());
return inGate;
}
@Bean
public ByteArrayRawSerializer serializer() {
return new ByteArrayRawSerializer();
}
@Bean
public MessageChannel fromTcp() {
return new DirectChannel();
}
@MessageEndpoint
public static class Echo {
@Transformer(inputChannel = "fromTcp", outputChannel = "toEcho")
public String convert(byte[] bytes) {
return new String(bytes);
}
@ServiceActivator(inputChannel = "toEcho")
public String upCase(String in) {
System.out.println("Server received: " + in);
return in.toUpperCase();
}
@Transformer(inputChannel = "resultToString")
public String convertResult(byte[] bytes) {
return new String(bytes);
}
}
@Bean
public AbstractClientConnectionFactory clientCF() {
TcpNetClientConnectionFactory tcpNet = new TcpNetClientConnectionFactory("localhost", 7777);
tcpNet.setDeserializer(serializer());
tcpNet.setSerializer(serializer());
tcpNet.setSingleUse(true);
tcpNet.setTaskExecutor(new NullExecutor());
return tcpNet;
}
@Bean
public AbstractServerConnectionFactory serverCF() {
TcpNetServerConnectionFactory tcp = new TcpNetServerConnectionFactory(this.port);
tcp.setSerializer(serializer());
tcp.setDeserializer(serializer());
return tcp;
}
public class NullExecutor implements Executor {
public void execute(Runnable command) {}
}
}
这是我如何使用客户端发送消息：
@Autowired
private Gateway gateway;
gateway.viaTcp("Some message");
我怎样才能安装客户端，因此它不等待为了回应？