Java 仿QQ聊天源代码介绍，本源码实现了群聊和私聊。

截图如下：

代码文件清单如下：

Client.java、ClientThread.java、Server.java、ServerThread.java共四个java文件

因为本人的能力有限，如果你觉得那里有不合理的地方可以给我留言或者q我

下面是Client.java代码内容：

package cc;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.io.IOException;

import java.io.OutputStream;

import java.io.PrintWriter;

import java.net.Inet4Address;

import java.net.Socket;

import java.net.UnknownHostException;

import javax.swing.JButton;

import javax.swing.JColorChooser;

import javax.swing.JComboBox;

import javax.swing.JFileChooser;

import javax.swing.JFrame;

import javax.swing.JOptionPane;

import javax.swing.JPanel;

import javax.swing.JScrollPane;

import javax.swing.JTextArea;

import javax.swing.JTextField;

import javax.swing.UIManager;

public class Client extends JFrame implements ActionListener {

private JPanel jp;

private JButton connect, send, exit;

private JTextArea ja;

private Socket socket = null;

public JTextArea getJa() {

return ja;

}

public void setJa(JTextArea ja) {

this.ja = ja;

}

private JTextField juser, jmess;

private JScrollPane jsp;

private JComboBox jcb;

public JComboBox getJcb() {

return jcb;

}

public void setJcb(JComboBox jcb) {

this.jcb = jcb;

}

public Client() {

try {

UIManager

.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");

} catch (Exception e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

into();

this.setBounds(100, 200, 390, 350);

this.setDefaultCloseOperation(EXIT_ON_CLOSE);

}

public void into() {

jp = new JPanel();

jp.setLayout(null);

this.add(jp);

juser = new JTextField();

juser.setBounds(60, 15, 150, 20);

jp.add(juser);

connect = new JButton("Connect");

connect.addActionListener(this);

connect.setBounds(220, 15, 80, 20);

jp.add(connect);

ja = new JTextArea();

ja.setLineWrap(true);

ja.setSize(350, 220);

jsp = new JScrollPane(ja, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,

JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);

jsp.setBounds(20, 40, 340, 220);

jp.add(jsp);

// 添加用于发送信息的文本框

jmess = new JTextField();

jmess.setBounds(15, 275, 130, 20);

jp.add(jmess);

// 添加用户名称的下拉菜单

jcb = new JComboBox();

jcb.addItem("USERS");

jcb.setBounds(152, 275, 80, 20);

jp.add(jcb);

// 添加发送按钮

send = new JButton("发送");

send.setBounds(235, 273, 60, 25);

send.addActionListener(this);

send.setEnabled(false);

jp.add(send);

// 添加推出按钮

exit = new JButton("退出");

exit.setBounds(300, 273, 60, 25);

exit.addActionListener(this);

exit.setEnabled(false);

jp.add(exit);

}

public static void main(String[] args) {

new Client().setVisible(true);

}

@Override

public void actionPerformed(ActionEvent e) {

String name = e.getActionCommand();

if (name.equals("Connect")) {

if (juser.getText().equals("")) {

JOptionPane jop = new JOptionPane();

jop.showMessageDialog(this, "用户名不能为空！！");

System.out.println("用户名为空！！");

} else {

try {

// 获取ip和用户名格式 USERS:iP:user

socket = new Socket("127.0.0.1", 8090);

// scoket=new Socket(loclhost, 8090)

String ip = Inet4Address.getLocalHost().getHostAddress();

StringBuffer sr = new StringBuffer("USERS:");

sr.append(ip).append(":").append(juser.getText().trim());

OutputStream os = socket.getOutputStream();

PrintWriter pw = new PrintWriter(os);

pw.println(sr.toString());

pw.flush();

ClientThread ct = new ClientThread(this, socket);

ct.start();

send.setEnabled(true);

exit.setEnabled(true);

connect.setEnabled(false);

} catch (UnknownHostException e1) {

// TODO Auto-generated catch block

e1.printStackTrace();

} catch (IOException e1) {

// TODO Auto-generated catch block

e1.printStackTrace();

}

}

}

if (name.equals("发送")) {

System.out.println(socket.toString());

// 群聊

StringBuffer mess = new StringBuffer("MESS");

System.out.println("以下是信息！");

System.out.println(jcb.getSelectedItem().toString());

if (jcb.getSelectedItem().toString().equals("USER")) {

mess.append(":").append("USERS").append(":")

.append(juser.getText().trim()).append(":")

.append(jmess.getText().trim());

try {

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

System.out.println(mess.toString());

pw.println(mess.toString());

pw.flush();

} catch (IOException e1) {

// TODO Auto-generated catch block

e1.printStackTrace();

}

jmess.setText("");

} else {

mess.append(":").append(jcb.getSelectedItem().toString()).append(":")

.append(juser.getText().trim()).append(":")

.append(jmess.getText().trim());

try {

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

System.out.println("我是私聊"+mess.toString());

pw.println(mess.toString());

pw.flush();

} catch (IOException e1) {

// TODO Auto-generated catch block

e1.printStackTrace();

}

jmess.setText("");

}

}

}

}