¿Cómo crear una conexión Tcp en el arranque de primavera para aceptar conexiones?

spring-boot spring-integration

Question

He pasado por this y he entendido que necesito crear un TcpReceivingChannelAdapter para aceptar conexiones. Pero no sé cómo proceder con eso.

¿Podría alguien guiarme sobre esto?

Answer 1

Vea la muestra de tcp-client-server para algunos punteros usando la configuración XML.

Para la configuración de Java; Aquí hay una aplicación de arranque de primavera simple ...

package com.example;
import java.net.Socket;
import javax.net.SocketFactory;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.integration.annotation.ServiceActivator;
import org.springframework.integration.annotation.Transformer;
import org.springframework.integration.channel.DirectChannel;
import org.springframework.integration.ip.tcp.TcpReceivingChannelAdapter;
import org.springframework.integration.ip.tcp.connection.AbstractServerConnectionFactory;
import org.springframework.integration.ip.tcp.connection.TcpNetServerConnectionFactory;
import org.springframework.integration.transformer.ObjectToStringTransformer;
import org.springframework.messaging.MessageChannel;
@SpringBootApplication
public class So39290834Application {
public static void main(String[] args) throws Exception {
ConfigurableApplicationContext context = SpringApplication.run(So39290834Application.class, args);
Socket socket = SocketFactory.getDefault().createSocket("localhost", 9999);
socket.getOutputStream().write("foo/r/n".getBytes());
socket.close();
Thread.sleep(1000);
context.close();
}
@Bean
public TcpNetServerConnectionFactory cf() {
return new TcpNetServerConnectionFactory(9999);
}
@Bean
public TcpReceivingChannelAdapter inbound(AbstractServerConnectionFactory cf) {
TcpReceivingChannelAdapter adapter = new TcpReceivingChannelAdapter();
adapter.setConnectionFactory(cf);
adapter.setOutputChannel(tcpIn());
return adapter;
}
@Bean
public MessageChannel tcpIn() {
return new DirectChannel();
}
@Transformer(inputChannel = "tcpIn", outputChannel = "serviceChannel")
@Bean
public ObjectToStringTransformer transformer() {
return new ObjectToStringTransformer();
}
@ServiceActivator(inputChannel = "serviceChannel")
public void service(String in) {
System.out.println(in);
}
}