//服務器端的程序

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

public class Server {

?? ?public static void main(String[] args) {
?? ??? ?try {
?? ??? ??? ?ServerSocket server =new ServerSocket(9887);
?? ??? ??? ?while(true)
?? ??? ??? ?{
?? ??? ??? ?Socket socket =server.accept();
?? ??? ??? ?InputStream it =socket.getInputStream();
?? ??? ??? ?InputStreamReader its=new InputStreamReader(it);
?? ??? ??? ?BufferedReader br=new BufferedReader(its);
?? ??? ??? ?System.out.println("我是服務器 ，等待客戶端輸入數(shù)據");
?? ??? ??? ?String info =null;
?? ??? ??? ?while((info=br.readLine())!=null)
?? ??? ??? ?{
?? ??? ??? ??? ?System.out.println(info);
?? ??? ??? ??? ?info=br.readLine();
?? ??? ??? ?}
?? ??? ??? ?socket.shutdownInput();
?? ??? ??? ?br.close();
?? ??? ??? ?its.close();
?? ??? ??? ?it.close();
?? ??? ??? ?socket.close();
?? ??? ??? ?server.close();
?? ??? ??? ?}
?? ??? ??? ?
?? ??? ?} catch (IOException e) {
?? ??? ??? ?
?? ??? ??? ?e.printStackTrace();
?? ??? ?}


?? ?}

}

//客戶端的程序

import java.io.*;

import java.net.Socket;
import java.net.UnknownHostException;

public class Client {

?? ?public static void main(String[] args) {
?? ??? ?
?? ??? ?try {
?? ??? ??? ?Socket socket =new Socket("localhost",9887);
?? ??? ??? ?OutputStream os =socket.getOutputStream();
?? ??? ??? ?
?? ??? ??? ?PrintWriter pw=new PrintWriter(os);
?? ??? ??? ?pw.write("用戶名");
?? ??? ??? ?pw.flush();
?? ??? ??? ?socket.shutdownOutput();
?? ??? ??? ?pw.close();
?? ??? ??? ?os.close();
?? ??? ??? ?
?? ??? ??? ?socket.close();
?? ??? ??? ?
?? ??? ?} catch (UnknownHostException e) {
?? ??? ??? ?// TODO Auto-generated catch block
?? ??? ??? ?e.printStackTrace();
?? ??? ?} catch (IOException e) {
?? ??? ??? ?// TODO Auto-generated catch block
?? ??? ??? ?e.printStackTrace();
?? ??? ?}
?? ??? ?

?? ?}

}