1 package myclient; 2  3 import java.net.*; 4 import java.util.Date; 5 import java.text.SimpleDateFormat; 6 import java.awt.event.ActionEvent; 7 import java.awt.event.ActionListener; 8 import java.io.*; 9 import java.awt.*;10 11 import javax.swing.*;12 public class Myclient1 extends JFrame implements ActionListener{13     JTextArea jta = null;14     JPanel jpl = null;15     JTextField jtf = null;//输入文本的地方16     JScrollPane jsp = null;17     JButton jbtn = null;18     //向sock管道流写信息19     PrintWriter pw = null;20     //显示发送时间21     //SimpleDateFormat sendtime = new SimpleDateFormat("HH:mm:ss");22     //time = sendtime.format(new Date());// new Date()为获取当前系统时间23     24     public static void main(String[] args) {25         // TODO Auto-generated method stub26         Myclient1 mclnt = new Myclient1();27     }28     29     public Myclient1(){30         jta = new JTextArea();31         jsp = new JScrollPane(jta);32         jtf = new JTextField(10);//输入框的长度33         jbtn = new JButton("发送");34         jbtn.addActionListener(this);35         jpl = new JPanel();36         37         jpl.add(jtf);38         jpl.add(jbtn);39          this.add(jsp,"Center");40         this.add(jpl,"South");41         this.setTitle("qq客户端");42         this.setSize(400,300);43         this.setVisible(true);44         45         46         47         try {48             49             Socket sock = new Socket("127.0.0.1",9988);50             // if connect success51             InputStreamReader isr = new InputStreamReader(sock.getInputStream());52             BufferedReader br = new BufferedReader(isr);53             54             pw = new PrintWriter(sock.getOutputStream(),true);55             56             //显示消息57             while(true){58                 //不停读取服务器发来的信息59                 String info =br.readLine();60                 jta.append("服务器说 ："+info+"\r\n");61             }62         63         } catch (Exception e) {64             // TODO: handle exception65             e.printStackTrace();66         }67     }68 69     @Override70     public void actionPerformed(ActionEvent e) {71         // TODO Auto-generated method stub72         if(e.getSource() == jbtn){73             //将服务器在jtf中写的文本发送给客户端74             String info = jtf.getText();75             jta.append("客户端说 ："+info+"\r\n");76             pw.println(info);77             //清空输入框78             jtf.setText(" ");79             80         }81     }82 83 }

/** * This is first server port 9999 *  */package com.myserver;import java.io.*;import java.net.*;import java.awt.*;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import javax.swing.*;public class Myserver1 extends JFrame implements ActionListener{        JTextArea jta = null;    JPanel jpl = null;    JTextField jtf = null;//输入文本的地方    JScrollPane jsp = null;    JButton jbtn = null;        PrintWriter pw = null;        public static void main(String[] args){                Myserver1 msrv = new Myserver1();            }    //constructor     public Myserver1(){                jta = new JTextArea();        jsp = new JScrollPane(jta);        jtf = new JTextField(10);//输入框的长度        jbtn = new JButton("发送");        jbtn.addActionListener(this);        jpl = new JPanel();                jpl.add(jtf);        jpl.add(jbtn);         this.add(jsp,"Center");        this.add(jpl,"South");        this.setTitle("qq服务器");        this.setSize(400,300);        this.setVisible(true);                try{            ServerSocket ss = new ServerSocket(9988);                        System.out.println("我是服务器，我在监听端口9988");            Socket sock = ss.accept();//返回一个socket连接            //从sock中读取数据            InputStreamReader isr = new InputStreamReader(sock.getInputStream());            BufferedReader br = new BufferedReader(isr);                        pw = new PrintWriter(sock.getOutputStream(),true);                        while(true){                String info =br.readLine();                jta.append("客户端说 ："+info+"\r\n");            }                        }catch(Exception e){            e.printStackTrace();        }    }        @Override    public void actionPerformed(ActionEvent arg0) {        // TODO Auto-generated method stub        if(arg0.getSource() == jbtn){            //将服务器在jtf中写的文本发送给客户端            String info = jtf.getText();            jta.append("服务器说 ："+info+"\r\n");            pw.println(info);            //清空输入框            jtf.setText(" ");                    }    }}