TCP通信

服务器端:

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

public class TcpServer
{
	public static void main(String[] args) throws Exception
	{
		ServerSocket ss = new ServerSocket(5000);
		
		Socket socket = ss.accept();
		
		InputStream is = socket.getInputStream();
		
		OutputStream os = socket.getOutputStream();
		
		byte[] buffer = new byte[200];
		
		int length = is.read(buffer);
		
		System.out.println(new String(buffer, 0 ,length));
		
		os.write("welcome".getBytes());
		
		is.close();
		os.close();
		socket.close();
	}
}

 

客户端：

import java.io.InputStream;
import java.io.OutputStream;
import java.net.Socket;

public class TcpClient
{
	public static void main(String[] args) throws Exception
	{
		Socket socket = new Socket("127.0.0.1", 5000);
		OutputStream os = socket.getOutputStream();
		os.write("hello world".getBytes());
		InputStream is = socket.getInputStream();
		byte[] bytes = new byte[200];
		int length = is.read(bytes);
		System.out.println(new String(bytes,0,length));
		is.close();
		os.close();
		socket.close();
	}
}