「聊天程序java」聊天程序设计
本篇文章给大家谈谈聊天程序java，以及聊天程序设计对应的知识点，希望对各位有所帮助，不要忘了收藏本站喔。
本文目录一览：
- 1、java实现聊天程序的以下功能
- 2、java聊天程序
- 3、用JAVA 编写简单网络聊天程序
- 4、用java怎么开发聊天软件?
- 5、怎么用Java实现网络聊天程序？
- 6、如何用Java编写一个聊天室程序，可以支持单聊和多聊？
java实现聊天程序的以下功能
此类问题先上CSDN 下载哪边搜索。。里面有很多你想要的聊天软件Java写的。。
java聊天程序
服务器端:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;
import java.net.*;
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 java.net.*;
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
用JAVA 编写简单网络聊天程序
/**
* 基于UDP协议的聊天程序
*
* 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
}
}
});
}
//界面设计布局
public void CreateInterFace()
{
this.add(lst,BorderLayout.CENTER);
this.add(p,BorderLayout.SOUTH);
p.add(lblIP);
p.add(txtIP);
p.add(lblMSG);
p.add(txtMSG);
p.add(btnSend);
txtIP.setText(sendIP);
//背景颜色
lst.setBackground(Color.yellow);
//JAVA默认风格
this.setUndecorated(true);
this.getRootPane().setWindowDecorationStyle(JRootPane.FRAME);
this.setSize(600,500);
this.setTitle("〓聊天室〓");
this.setResizable(false);//不能改变窗体大小
this.setLocationRelativeTo(null);//窗体居中
this.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
this.setVisible(true);
txtMSG.requestFocus();//消息框得到焦点
}
//===============================Main函数===============================
public static void main(String[]args)
{
new Chat();
}
//================================发送消息===============================
//消息框回车发送消息事件
public void actionPerformed(ActionEvent e)
{
//得到文本内容
buf = txtMSG.getText().getBytes();
//判断消息框是否为空
if (txtMSG.getText().length()==0)
{
JOptionPane.showMessageDialog(null,"发送消息不能为空","提示",JOptionPane.WARNING_MESSAGE);
}
else{
try
{
InetAddress address = InetAddress.getByName(sendIP);
DatagramPacket dp = new DatagramPacket(buf,buf.length,InetAddress.getByName(txtIP.getText()),sendPort);
ds.send(dp);
}
catch(Exception ex)
{
ex.printStackTrace();
}
}
txtMSG.setText("");//清空消息框
//点发送按钮发送消息事件
if(e.getSource()==btnSend)
{
buf = txtMSG.getText().getBytes();
try
{
DatagramPacket dp = new DatagramPacket(buf,buf.length,InetAddress.getByName(txtIP.getText()),sendPort);
}
catch(Exception ex)
{
ex.printStackTrace();
}
txtMSG.setText("");//清空消息框
txtMSG.requestFocus();
}
}
}
用java怎么开发聊天软件?
Java 语言独特的运行机制使得它具有良好的二进制的可移植性,利用 Java,开发人员可以编写出与具体平台无关,普遍适用的应用程序,大大降低 了开发
怎么用Java实现网络聊天程序？
用服务器不断监听是否有客户端连接。
然后有连接的话把客户端的信息加入到连接表中
最后两个客户端分别发信息先给服务器 然后由服务器转发
如何用Java编写一个聊天室程序，可以支持单聊和多聊？
聊天程序又叫即时通讯系统
分类两部分：客户端和服务端
客户端：用户聊天的界面
服务端：接收消息并转发到指定用户
其中服务端和客户端用tcp或者udp连接，使用socket编程完成通信。
按着这个思路可以开发出一套聊天程序
客户端常用界面 bs版本的又layim
服务端 openfire或者自己实现
关于聊天程序java和聊天程序设计的介绍到此就结束了，不知道你从中找到你需要的信息了吗 ？如果你还想了解更多这方面的信息，记得收藏关注本站。
发布于：2022-11-28，除非注明，否则均为原创文章，转载请注明出处。