網絡編程-udp通信1

package com.taylor.tcp;

import java.io.IOException;
import java.io.InputStream;
import java.net.ServerSocket;
import java.net.Socket;

import org.junit.Test;

public class TcpServer {
	@Test
	public void fun() throws IOException {
		ServerSocket ss = new ServerSocket(10006);
		Socket s = ss.accept();
		
		String ip = s.getInetAddress().getHostAddress();
		System.out.println(ip+"...........connect");
		
		InputStream in =s.getInputStream();
		byte[] b = new byte[1024];
		int leng = in.read(b);
		System.out.println(new String(b,0,leng));
		s.close();	//先關客戶端，後關服務端
		ss.close();
		
	}
}

package com.taylor.tcp;

import java.io.IOException;
import java.io.OutputStream;
import java.net.Socket;
import java.net.UnknownHostException;

import org.junit.Test;

public class TcpClient {
	@Test
	public void fun() throws UnknownHostException, IOException {
		Socket s = new Socket("172.20.10.5", 10006);
		OutputStream out = s.getOutputStream();
		out.write("wo shi ni da ye".getBytes());
		s.close();
	}
}