import java.io.BufferedWriter;

import java.io.IOException;

import java.io.OutputStreamWriter;

import java.net.ServerSocket;

import java.net.Socket;

/**

 * 最簡單的服務器端代碼

 * @author Administrator

 *

 */

public class BasicSocketServer {

    public static void main(String[] args) {

       try {

           //建立服務器端套接字

           ServerSocket serverSocket = new   ServerSocket(8888);  //TCP端口一共多少個??

           //監聽，等待客戶端請求，并愿意接收連接。

           System.out.println("服務端建立監聽");

           Socket socket = serverSocket.accept();

           //通過流向客戶端發送數據

//         ObjectOutputStream oos = new   ObjectOutputStream(socket.getOutputStream());

//         oos.writeObject("aaaaa");

//         oos.close();

           BufferedWriter bw   = new BufferedWriter(new   OutputStreamWriter(socket.getOutputStream()));

           bw.write("hhhh");

           bw.close();

           socket.close();

       } catch (IOException e) {

           // TODO Auto-generated catch block

           e.printStackTrace();

       }

    }

import java.io.BufferedReader;

import java.io.InputStreamReader;

import java.net.InetAddress;

import java.net.Socket;

/**

 * 最簡單的Socket客戶端

 * @author Administrator

 *

 */

public class BasicSocketClient {

    public static void main(String[] args) {

       try {

           //指定的是所要連接的服務器的IP和端口。而不是自己機器的端口。發送端口是隨機的。

           Socket socket = new Socket(InetAddress.getLocalHost(),8888);

//         ObjectInputStream ois = new   ObjectInputStream(socket.getInputStream());

//         String string = (String) ois.readObject();

//         System.out.println(string);

           BufferedReader br   = new BufferedReader(new   InputStreamReader(socket.getInputStream()));

           System.out.println(br.readLine());

           br.close();

           socket.close();

       } catch (Exception e) {

           e.printStackTrace();

       }

    }

}