import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.net.ServerSocket;

import java.net.Socket;

public class Server {

    public static void main(String[] args) throws IOException {

        ServerSocket ss = new ServerSocket(10000);

        System.out.println("伺服中.......");

        while (true) {

            // The method blocks until a connection is made.

            // 阻塞直至建立某个连接

            Socket s = ss.accept();

            // 接收数据

            InputStream in = s.getInputStream();

            byte[] b = new byte[1024 * 1024];

            int len = in.read(b);

            String requestData = new String(b, 0, len);

            System.out.println("客户端请求数据：" + requestData);

            // 处理数据

            String responseData = requestData.toUpperCase();

            // 响应结果

            OutputStream out = s.getOutputStream();

            out.write(responseData.getBytes());

            in.close();

            out.close();

            s.close();

            // 关闭服务

            if (requestData.equalsIgnoreCase("exit")) {

                break;

            }

        }

        ss.close();

    }

}

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.net.Socket;

import java.net.UnknownHostException;

public class Client {

    public static void main(String[] args) throws UnknownHostException,

            IOException {

        Socket s = new Socket("172.16.162.238", 10000);

        // 发起请求

        OutputStream out = s.getOutputStream();

        out.write(args[0].getBytes());

        // 接收处理结果

        InputStream in = s.getInputStream();

        byte[] b = new byte[1024 * 1024];

        int len = in.read(b);

        String result = new String(b, 0, len);

        System.out.println("处理结果是：" + result);

        in.close();

        out.close();

        s.close();

    }

}