java 如何在spring boot中创建一个Tcp Connection来接受连接？
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时间：2020-11-03 04:15:04 来源:igfitidea点击:
How to create a Tcp Connection in spring boot to accept connections?
提问by amitection
采纳答案by Gary Russell
See the tcp-client-server samplefor some pointers using XML configuration.
有关使用 XML 配置的一些指针，请参阅tcp-client-server 示例。
For Java configuration; here's a simple Spring Boot app...
对于 Java 配置；这是一个简单的 Spring Boot 应用程序...
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);
}
}
