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java简单聊天程序代码 java简单聊天程序代码辩答PPT( 五 )

IT技术程序


socket = new Socket(serverAddress, port);
reader = new BufferedReader(new InputStreamReader(socket.getInputStream()));
writer = new PrintWriter(socket.getOutputStream(), true);
this.name = name;
}
public void start() throws IOException {
System.out.println("欢迎来到聊天室java简单聊天程序代码！");
new Thread(new IncomingMessageHandler()).start();
new Thread(new OutgoingMessageHandler()).start();
}
private class IncomingMessageHandler implements Runnable {
@Override
public void run() {
try {
while (true) {
String message = reader.readLine();
if (message == null) {
break;
}
System.out.println(message);
}
} catch (IOException e) {
e.printStackTrace();
} finally {
close();
}
}
}
private class OutgoingMessageHandler implements Runnable {
@Override
public void run() {
BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
try {
while (true) {
String message = reader.readLine();
if (message.equals("quit")) {
break;
}
writer.println(name + ": " + message);
}
} catch (IOException e) {
e.printStackTracejava简单聊天程序代码；
} finally {
close();
}
}
}
用JAVA 编写简单网络聊天程序/**
* 基于UDP协议java简单聊天程序代码的聊天程序
*
*2007.9.18
* */
//导入包
import java.awt.*;
import java.awt.event.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
import java.net.*;
public class Chat extends JFrame implements ActionListener
{
//广播地址或者对方java简单聊天程序代码的地址
public static final String sendIP = "172.18.8.255";
//发送端口9527
public static final int sendPort = 9527;
JPanel p = new JPanel();
List lst = new List();//消息显示
JTextField txtIP = new JTextField(18); //填写IP地址
JTextField txtMSG = new JTextField(20); //填写发送消息
JLabel lblIP = new JLabel("IP地址:");
JLabel lblMSG = new JLabel("消息:");
JButton btnSend = new JButton("发送");
byte [] buf;
//定义DatagramSocket的对象必须进行异常处理
//发送和接收数据报包的套接字
DatagramSocket ds = null;
//=============构造函数=====================
public Chat()
{
CreateInterFace();
//注册消息框监听器
txtMSG.addActionListener(this);
btnSend.addActionListener(this);
try
{
//端口:9527
ds =new DatagramSocket(sendPort);
}
catch(Exception ex)
{
ex.printStackTrace();
}
//============接受消息============
//匿名类
new Thread(new Runnable()
{
public void run()
{
byte buf[] = new byte[1024];
//表示接受数据报包
while(true)
{
try
{
DatagramPacket dp = new DatagramPacket(buf,1024,InetAddress.getByName(txtIP.getText()),sendPort);
ds.receive(dp);
lst.add("【消息来自】◆" + dp.getAddress().getHostAddress() + "◆"+"【说】:" + new String (buf,0,dp.getLength()) /*+ dp.getPort()*/,0);
}
catch(Exception e)
{
if(ds.isClosed())
{
e.printStackTrace();
}
}
}
}
}).start();
//关闭窗体事件
this.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent w)
{
System.out.println("test");
int n=JOptionPane.showConfirmDialog(null,"是否要退出?","退出",JOptionPane.YES_NO_OPTION);
if(n==JOptionPane.YES_OPTION)
{
dispose();
System.exit(0);
ds.close();//关闭ds对象//关闭数据报套接字

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