JAVA代码编写一简单网络聊天程序

要求：聊天室服务器、聊天室客户端；客户端之间可以聊天。

因为我是初级选手，想借此程序分析学习java，所以代码最好多一点注释...

分数有限，望大家不吝赐教!!问题补充：

需要图形用户界面哦，最好用swing组件

服务器端:采用多线程,可以向客户广播:当前聊天室人数,客户名称列表,客户进入离开提示; 客户端:可以设定昵称,性别,客户间可以私聊

服务器端:

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

import java.io.*;

import https://www.360docs.net/doc/0c7660444.html,.*;

public class Server extends JFrame implements ActionListener{

JPanel contentPane;

JLabel jLabel2 = new JLabel();

JTextField jTextField2 = new JTextField("4700");

JButton jButton1 = new JButton();

JLabel jLabel3 = new JLabel();

JTextField jTextField3 = new JTextField();

JButton jButton2 = new JButton();

JScrollPane jScrollPane1 = new JScrollPane();

JTextArea jTextArea1 = new JTextArea();

ServerSocket server = null;

Socket socket = null;BufferedReader instr =null;PrintWriter os=null ;

//Construct the frame

public Server() {

jbInit();

}

class MyThread extends Thread{//该线程负责接受数据

public void run(){

try{

while(true){

this.sleep(100);

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

if(instr.ready()){ //检查是否有数据

jTextArea1.append("客户端: "+instr.readLine()+"\n");

}

}

}catch(Exception ex){}

}

public void actionPerformed(ActionEvent e){

if(e.getSource()==jButton1){

int port=Integer.parseInt(jTextField2.getText().trim());

listenClient(port);

}

if(e.getSource()==jButton2){

String s=this.jTextField3.getText().trim();

sendData(s);

}

}

private void listenClient(int port){//侦听

try{

if(jButton1.getText().trim().equals("侦听")){

server = new ServerSocket(port);

jButton1.setText("正在侦听...");

socket=server.accept();//等待，一直到客户端连接才望下执行

sendData("已经成功连接。。。");

jButton1.setText("正在聊天...");

jTextArea1.append("客户端已经连接到服务器\n");

MyThread t=new MyThread();

t.start();

}

}catch(Exception ex){

}

}

private void sendData(String s){//发送数据

try{

os= new PrintWriter(socket.getOutputStream());

os.println(s);

os.flush();

if(!s.equals("已经成功连接。。。"))

this.jTextArea1.append("Server:"+s+"\n");

}catch(Exception ex){

}

}

//Component initialization

private void jbInit() {

contentPane = (JPanel) this.getContentPane();

contentPane.setLayout(null);

this.setSize(new Dimension(540, 340));

this.setTitle("服务器");

jLabel2.setBounds(new Rectangle(22, 27, 72, 28)); jLabel2.setText("端口号");

jLabel2.setFont(new java.awt.Font("宋体", 0, 14)); jTextField2.setBounds(new Rectangle(113, 27, 315, 24));

jButton1.setBounds(new Rectangle(440, 28, 73, 25)); jButton1.setFont(new java.awt.Font("Dialog", 0, 14)); jButton1.setBorder(BorderFactory.createEtchedBorder()); jButton1.setActionCommand("jButton1");

jButton1.setText("侦听");

jLabel3.setBounds(new Rectangle(23, 57, 87, 28)); jLabel3.setText("请输入信息");

jLabel3.setFont(new java.awt.Font("宋体", 0, 14)); jTextField3.setBounds(new Rectangle(114, 60, 314, 24)); jTextField3.setText("");

jButton2.setText("发送");

jButton2.setActionCommand("jButton1");

jButton2.setBorder(BorderFactory.createEtchedBorder()); jButton2.setFont(new java.awt.Font("Dialog", 0, 14)); jButton2.setBounds(new Rectangle(440, 58, 73, 25)); jScrollPane1.setBounds(new Rectangle(23, 92, 493, 189));

contentPane.add(jTextField2, null);

contentPane.add(jButton1, null);

contentPane.add(jLabel3, null);

contentPane.add(jTextField3, null);

contentPane.add(jButton2, null);

contentPane.add(jScrollPane1, null);

contentPane.add(jLabel2, null);

jScrollPane1.getViewport().add(jTextArea1, null);

jButton1.addActionListener(this);

jButton2.addActionListener(this);

this.addWindowListener(new WindowAdapter(){

public void windowClosing(WindowEvent e){

try{

socket.close();

instr.close();

System.exit(0);

}catch(Exception ex){

}

}

});

}

public static void main(String arg[]){

JFrame.setDefaultLookAndFeelDecorated(true);

Server frm=new Server();

frm.setVisible(true);

}

}

客户端:

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

import java.io.*;

import https://www.360docs.net/doc/0c7660444.html,.*;

public class Client extends JFrame implements ActionListener{

JPanel contentPane;

JLabel jLabel1 = new JLabel();

JTextField jTextField1 = new JTextField("127.0.0.1");

JLabel jLabel2 = new JLabel();

JTextField jTextField2 = new JTextField("4700");

JButton jButton1 = new JButton();

JLabel jLabel3 = new JLabel();

JTextField jTextField3 = new JTextField();

JButton jButton2 = new JButton();

JScrollPane jScrollPane1 = new JScrollPane();

JTextArea jTextArea1 = new JTextArea();

BufferedReader instr =null;

Socket socket = null;

PrintWriter os=null;

public Client() {

jbInit();

}

class MyThread extends Thread{

public void run(){

try{

os=new PrintWriter(socket.getOutputStream());

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

while(true){

this.sleep(100);

if(instr.ready()){

jTextArea1.append("服务器: "

+instr.readLine()+"\n");

}

}

}catch(Exception ex){

}

}

}

public void actionPerformed(ActionEvent e){

if(e.getSource()==jButton1){

String ip=jTextField3.getText().trim();

int port=Integer.parseInt(jTextField2.getText().trim());

connectServer(ip,port);

}

if(e.getSource()==jButton2){

String s=this.jTextField3.getText().trim();

sendData(s);

}

}

private void connectServer(String ip,int port){//连接

try{

if(jButton1.getText().trim().equals("连接")){

jButton1.setText("连接服务器...");

socket=new Socket(ip,port);

jButton1.setText("正在聊天");

MyThread t=new MyThread();

t.start();

}

}catch(Exception ex){

}

}

private void sendData(String s){//发送数据

try{

os = new PrintWriter(socket.getOutputStream());

os.println(s);

os.flush();

this.jTextArea1.append("Server:"+s+"\n");

}catch(Exception ex){

}

}

private void jbInit() {

contentPane = (JPanel) this.getContentPane();

jLabel1.setFont(new java.awt.Font("宋体", 0, 14)); jLabel1.setText("服务器名称");

jLabel1.setBounds(new Rectangle(20, 22, 87, 28)); contentPane.setLayout(null);

this.setSize(new Dimension(540, 340));

this.setTitle("客户端");

jTextField1.setBounds(new Rectangle(114, 26, 108, 24)); jLabel2.setBounds(new Rectangle(250, 25, 72, 28)); jLabel2.setText("端口号");

jLabel2.setFont(new java.awt.Font("宋体", 0, 14)); jTextField2.setBounds(new Rectangle(320, 27, 108, 24));

jButton1.setBounds(new Rectangle(440, 28, 73, 25)); jButton1.setFont(new java.awt.Font("Dialog", 0, 14)); jButton1.setBorder(BorderFactory.createEtchedBorder()); jButton1.setActionCommand("jButton1");

jButton1.setText("连接");

jLabel3.setBounds(new Rectangle(23, 57, 87, 28)); jLabel3.setText("请输入信息");

jLabel3.setFont(new java.awt.Font("宋体", 0, 14)); jTextField3.setBounds(new Rectangle(114, 60, 314, 24));

jButton2.setText("发送");

jButton2.setActionCommand("jButton1");

jButton2.setBorder(BorderFactory.createEtchedBorder()); jButton2.setFont(new java.awt.Font("Dialog", 0, 14)); jButton2.setBounds(new Rectangle(440, 58, 73, 25)); jScrollPane1.setBounds(new Rectangle(23, 92, 493, 189));

contentPane.add(jLabel1, null);

contentPane.add(jTextField1, null);

contentPane.add(jLabel2, null);

contentPane.add(jTextField2, null);

contentPane.add(jButton1, null);

contentPane.add(jLabel3, null);

contentPane.add(jTextField3, null);

contentPane.add(jButton2, null);

contentPane.add(jScrollPane1, null);

jScrollPane1.getViewport().add(jTextArea1, null); jButton1.addActionListener(this);

jButton2.addActionListener(this);

this.addWindowListener(new WindowAdapter(){

public void windowClosing(WindowEvent e){

try{

socket.close();instr.close();os.close();System.exit(0);

}catch(Exception ex){

}

}

});

}

public static void main(String arg[]){

JFrame.setDefaultLookAndFeelDecorated(true);

Client frm=new Client();

frm.setVisible(true);

}

}

先启动服务器端,侦听端口,再启动客户端,就行了