今天为大家分享一个java语言编的QQ聊天系统，目前系统已经完成了初步功能，后续会进一步完善。整个系统界面漂亮，有完整得源码，希望大家可以喜欢。喜欢的帮忙点赞和关注。一起编程、一起进步

开发环境

开发语言为Java，开发环境Eclipse或者IDEA都可以，数据为MySQL。运行主程序，或者执行打开JAR文件即可以运行本程序。

系统框架

利用JDK自带的SWING框架开发，下载。纯窗体模式，直接运行Main文件即可以。同时带有详细得设计文档。

主要功能

程序启动方法

仿QQ聊天系统的启动如下：

1 运行QQSERVER，启动后台线程

2 运行LoginFrame.java，启动QQ登陆界面

功能需求

1）客户端：提供登录、主窗体及聊天等界面及对应的业务逻辑，向服务器发送相应的服务请求，并接受相应的处理结果。客户端是轻量级的软件，只负责链接远程服务器，并发出相应的服务请求，并不进行核心业务逻辑的处理。具体的处理交给服务器，而客户端只接收服务器处理的结果并显示给用户。

1. 服务器：监控登录信息及在线用户信息，接收客户端的服务请求，并做相应的处理，然后将处理结果发送给客户端。服务器负责处理核心的业务逻辑，并负责连接数据库，保存和读取数据。因此，服务器端设计的好坏也直接影响即时通信软件的质量。

主要模块

登陆：登陆QQ ，服务器上查看当前登陆用户信息

分组：添加分组、重命名、删除分组、刷新友好

好友：发送即时聊天、查看好友资料、查看好友聊天记录、删除好友

聊天：支持常见的文本、表情、图片聊天，还支持发送文件、分享音乐视频，发送代码等功能

实现效果

关键代码

package client.frame;import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import client.frame.MyPanel;
import javax.swing.JLabel;
//import com.sun.awt.AWTUtilities;
import javax.swing.JPasswordField;
import javax.swing.JComboBox;
import java.awt.Font;
import java.awt.Color;
import javax.swing.ImageIcon;
import javax.swing.JCheckBox;
import javax.swing.JTextField;
import java.awt.Toolkit;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;public class LoginFrame extends JFrame
{private JPanel contentPane;public JPasswordField pwd密码;private JLabel lblQQ2013;public JLabel lbl头像;public JCheckBox checkBox记住密码;public JCheckBox checkBox自动登录;public JLabel lbl登录;public JTextField textField用户名;public JLabel lbl注册账号;public JLabel lbl忘记密码;public JLabel lbl最小化;public JLabel lbl退出;public JLabel lbl多账号;public JLabel lbl设置;public JComboBox comboBox状态;/*** Launch the application.*/public static void main(String[] args){EventQueue.invokeLater(new Runnable(){public void run(){try{LoginFrame frame = new LoginFrame();//AWTUtilities.setWindowOpaque(frame, false);//设置窗体完全透明frame.setVisible(true);}catch (Exception e){e.printStackTrace();}}});}/*** Create the frame.*/public LoginFrame(){setTitle("QQ2013");setIconImage(Toolkit.getDefaultToolkit().getImage(LoginFrame.class.getResource("/client/img/QQ_64.png")));setUndecorated(true);//设置窗体没有边框setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);setBounds(100, 100, 354, 272);contentPane = new MyPanel("../img/QQ2011_Login.png");contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));setContentPane(contentPane);contentPane.setLayout(null);pwd密码 = new JPasswordField();pwd密码.setText("123");pwd密码.setEchoChar('●');pwd密码.setBounds(104, 163, 154, 26);contentPane.add(pwd密码);lblQQ2013 = new JLabel("QQ2013");lblQQ2013.setForeground(new Color(0, 0, 51));lblQQ2013.setFont(new Font("宋体", Font.BOLD, 16));lblQQ2013.setBounds(14, 6, 55, 18);contentPane.add(lblQQ2013);lbl头像 = new JLabel("");lbl头像.setIcon(new ImageIcon(LoginFrame.class.getResource("/client/img/headImage/head_boy_01_64.jpg")));lbl头像.setBounds(18, 127, 64, 64);contentPane.add(lbl头像);checkBox记住密码 = new JCheckBox("\u8BB0\u4F4F\u5BC6\u7801");checkBox记住密码.setBounds(156, 198, 76, 18);contentPane.add(checkBox记住密码);checkBox自动登录 = new JCheckBox("\u81EA\u52A8\u767B\u5F55");checkBox自动登录.setBounds(237, 198, 76, 18);contentPane.add(checkBox自动登录);lbl登录 = new JLabel("");lbl登录.setIcon(new ImageIcon(LoginFrame.class.getResource("/client/img/button/button_login_1.png")));lbl登录.setBounds(262, 237, 69, 22);contentPane.add(lbl登录);textField用户名 = new JTextField();textField用户名.setText("\u9A6C\u5316\u817E");textField用户名.setBounds(104, 128, 154, 26);contentPane.add(textField用户名);textField用户名.setColumns(10);lbl注册账号 = new JLabel("\u6CE8\u518C\u8D26\u53F7");lbl注册账号.setFont(new Font("SansSerif", Font.PLAIN, 13));lbl注册账号.setForeground(new Color(0, 51, 255));lbl注册账号.setBounds(288, 132, 55, 18);contentPane.add(lbl注册账号);lbl忘记密码 = new JLabel("\u5FD8\u8BB0\u5BC6\u7801");lbl忘记密码.setFont(new Font("SansSerif", Font.PLAIN, 13));lbl忘记密码.setForeground(new Color(0, 51, 255));lbl忘记密码.setBounds(288, 167, 55, 18);contentPane.add(lbl忘记密码);lbl最小化 = new JLabel("");lbl最小化.setIcon(new ImageIcon(LoginFrame.class.getResource("/client/img/button/login_minsize_1.png")));lbl最小化.setBounds(284, 0, 29, 19);contentPane.add(lbl最小化);lbl退出 = new JLabel("");lbl退出.setIcon(new ImageIcon(LoginFrame.class.getResource("/client/img/button/login_exit_1.png")));lbl退出.setBounds(312, -1, 37, 20);contentPane.add(lbl退出);lbl多账号 = new JLabel("");lbl多账号.setIcon(new ImageIcon(LoginFrame.class.getResource("/client/img/button/login_duozhanghao_1.png")));lbl多账号.setBounds(14, 237, 69, 21);contentPane.add(lbl多账号);lbl设置 = new JLabel("");lbl设置.setIcon(new ImageIcon(LoginFrame.class.getResource("/client/img/button/login_setting_1.png")));lbl设置.setBounds(93, 237, 69, 21);contentPane.add(lbl设置);comboBox状态 = new JComboBox();comboBox状态.setBounds(104, 195, 40, 24);contentPane.add(comboBox状态);}
}package client.frame;import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JPanel;
import java.awt.Toolkit;
import java.awt.Color;
import javax.swing.GroupLayout;
import javax.swing.GroupLayout.Alignment;
import javax.swing.JOptionPane;
import javax.swing.LayoutStyle.ComponentPlacement;
import javax.swing.JLabel;
import javax.swing.ImageIcon;
import javax.swing.JComboBox;
import java.awt.Font;
import javax.swing.JTabbedPane;
import javax.swing.JButton;
import javax.swing.JToolBar;
import java.awt.FlowLayout;
import java.awt.BorderLayout;
import javax.swing.JTree;
import javax.swing.JScrollPane;
import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.MutableTreeNode;
import javax.swing.tree.TreeModel;
import javax.swing.tree.TreePath;
import javax.swing.tree.TreeSelectionModel;import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import javax.swing.JPopupMenu;
import java.awt.Component;
import javax.swing.JMenuItem;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;/*** @author LXA**/
public class MainFrame extends JFrame
{public JLabel lbl设置;public JLabel lbl头像;public JComboBox comboBox状态;public JLabel lbl用户名;public JLabel lbl个性签名;public JTree tree;private JTabbedPane tabbedPane;private JPanel panel好友列表;private JPanel panel群;private JPanel panel最近;private JScrollPane scrollPane好友;private JPanel panel用户信息;private JPanel panel好友面板;private JPanel panel设置面板;private JPopupMenu popupMenu好友列表;private JMenuItem menuItem发送即时消息;private JMenuItem menuItem查看好友信息;private JMenuItem menuItem发送文件;private JMenuItem menuItem删除用户;/*** Create the frame.*/public MainFrame(){setIconImage(Toolkit.getDefaultToolkit().getImage(MainFrame.class.getResource("/client/img/QQ_64.png")));setTitle("QQ2013");setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);setBounds(100, 100, 330, 600);panel用户信息 = new JPanel();panel用户信息.setBackground(new Color(51, 153, 255));panel好友面板 = new JPanel();panel设置面板 = new JPanel();panel设置面板.setBackground(new Color(51, 153, 255));GroupLayout groupLayout = new GroupLayout(getContentPane());groupLayout.setHorizontalGroup(groupLayout.createParallelGroup(Alignment.LEADING).addComponent(panel用户信息, GroupLayout.DEFAULT_SIZE, 361, Short.MAX_VALUE).addComponent(panel设置面板, GroupLayout.DEFAULT_SIZE, 361, Short.MAX_VALUE).addComponent(panel好友面板, GroupLayout.DEFAULT_SIZE, 361, Short.MAX_VALUE));groupLayout.setVerticalGroup(groupLayout.createParallelGroup(Alignment.LEADING).addGroup(groupLayout.createSequentialGroup().addComponent(panel用户信息, GroupLayout.PREFERRED_SIZE, 96, GroupLayout.PREFERRED_SIZE).addPreferredGap(ComponentPlacement.RELATED).addComponent(panel好友面板, GroupLayout.DEFAULT_SIZE, 303, Short.MAX_VALUE).addPreferredGap(ComponentPlacement.RELATED).addComponent(panel设置面板, GroupLayout.PREFERRED_SIZE, 75, GroupLayout.PREFERRED_SIZE)));panel好友面板.setLayout(new BorderLayout(0, 0));tabbedPane = new JTabbedPane(JTabbedPane.TOP);panel好友面板.add(tabbedPane, BorderLayout.CENTER);panel好友列表 = new JPanel();tabbedPane.addTab("\u597D\u53CB", new ImageIcon(MainFrame.class.getResource("/client/img/friend_list.png")), panel好友列表, null);panel好友列表.setLayout(new BorderLayout(0, 0));scrollPane好友 = new JScrollPane();panel好友列表.add(scrollPane好友);tree = new JTree();scrollPane好友.setViewportView(tree);popupMenu好友列表 = new JPopupMenu();addPopup(tree, popupMenu好友列表);menuItem发送即时消息 = new JMenuItem("\u53D1\u9001\u5373\u65F6\u6D88\u606F");menuItem发送即时消息.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {startChat(e);}});menuItem发送即时消息.setIcon(new ImageIcon(MainFrame.class.getResource("/client/img/QQ_16.png")));popupMenu好友列表.add(menuItem发送即时消息);menuItem发送文件 = new JMenuItem("\u53D1\u9001\u6587\u4EF6");menuItem发送文件.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {sendFile(e);}});popupMenu好友列表.add(menuItem发送文件);menuItem查看好友信息 = new JMenuItem("\u67E5\u770B\u597D\u53CB\u8D44\u6599");menuItem查看好友信息.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {getFriendInfo(e);}});popupMenu好友列表.add(menuItem查看好友信息);menuItem删除用户 = new JMenuItem("\u5220\u9664\u7528\u6237");menuItem删除用户.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {deleteFriend(e);}});popupMenu好友列表.add(menuItem删除用户);panel群 = new JPanel();tabbedPane.addTab("\u7FA4\u7EC4", new ImageIcon(MainFrame.class.getResource("/client/img/friend_qun.png")), panel群, null);JButton btn官方聊天室 = new JButton("\u8FDB\u5165\u5B98\u65B9\u804A\u5929\u5BA4");btn官方聊天室.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e){gotoChatRoom();}});btn官方聊天室.setFont(new Font("微软雅黑", Font.PLAIN, 28));JButton btn新建聊天室 = new JButton("\u65B0\u5EFA\u804A\u5929\u5BA4");btn新建聊天室.addActionListener(new ActionListener() {public void actionPerformed(ActionEvent e) {buildNewChatRoom();}});btn新建聊天室.setFont(new Font("微软雅黑", Font.PLAIN, 28));GroupLayout gl_panel群 = new GroupLayout(panel群);gl_panel群.setHorizontalGroup(gl_panel群.createParallelGroup(Alignment.LEADING).addGroup(Alignment.TRAILING, gl_panel群.createSequentialGroup().addContainerGap().addGroup(gl_panel群.createParallelGroup(Alignment.TRAILING).addComponent(btn新建聊天室, Alignment.LEADING, GroupLayout.DEFAULT_SIZE, 302, Short.MAX_VALUE).addComponent(btn官方聊天室, Alignment.LEADING, GroupLayout.DEFAULT_SIZE, 302, Short.MAX_VALUE)).addContainerGap()));gl_panel群.setVerticalGroup(gl_panel群.createParallelGroup(Alignment.LEADING).addGroup(gl_panel群.createSequentialGroup().addContainerGap().addComponent(btn官方聊天室, GroupLayout.PREFERRED_SIZE, 89, GroupLayout.PREFERRED_SIZE).addPreferredGap(ComponentPlacement.RELATED).addComponent(btn新建聊天室, GroupLayout.PREFERRED_SIZE, 76, GroupLayout.PREFERRED_SIZE).addContainerGap(132, Short.MAX_VALUE)));panel群.setLayout(gl_panel群);panel最近 = new JPanel();tabbedPane.addTab("\u6700\u8FD1", new ImageIcon(MainFrame.class.getResource("/client/img/friend_history.png")), panel最近, null);panel设置面板.setLayout(null);lbl设置 = new JLabel("");lbl设置.setIcon(new ImageIcon(MainFrame.class.getResource("/client/img/button/QQ_settings_1.png")));lbl设置.setBounds(6, 6, 64, 64);panel设置面板.add(lbl设置);panel用户信息.setLayout(null);lbl头像 = new JLabel("");lbl头像.setIcon(new ImageIcon(MainFrame.class.getResource("/client/img/headImage/head_boy_01_64.jpg")));lbl头像.setBounds(15, 15, 64, 64);panel用户信息.add(lbl头像);comboBox状态 = new JComboBox();comboBox状态.setBounds(91, 15, 58, 28);panel用户信息.add(comboBox状态);lbl用户名 = new JLabel("\u9A6C\u5316\u817E");lbl用户名.setFont(new Font("黑体", Font.BOLD, 18));lbl用户名.setBounds(159, 18, 90, 25);panel用户信息.add(lbl用户名);lbl个性签名 = new JLabel("\u5404\u4F4D\u817E\u8BAF\u7F51\u53CB\u597D\uFF0CQQ2013\u5373\u5C06\u516C\u6D4B\u4E86");lbl个性签名.setBounds(91, 55, 210, 18);panel用户信息.add(lbl个性签名);getContentPane().setLayout(groupLayout);}private static void addPopup(Component component, final JPopupMenu popup) {component.addMouseListener(new MouseAdapter() {public void mousePressed(MouseEvent e) {if (e.isPopupTrigger()) {showMenu(e);}}public void mouseReleased(MouseEvent e) {if (e.isPopupTrigger()) {showMenu(e);}}private void showMenu(MouseEvent e) {popup.show(e.getComponent(), e.getX(), e.getY());}});}/*** 开始聊天*/public void startChat(ActionEvent e){}/*** 获取好友资料* @param e*/public void getFriendInfo(ActionEvent e){}/*** 发送文件* @param e*/public void sendFile(ActionEvent e){}/*** 删除好友* @param e*/public void deleteFriend(ActionEvent e){}/*** 进入聊天室*/public void gotoChatRoom(){}/*** 新建聊天室*/public void buildNewChatRoom(){}
}
/*TreePath path =tree.getSelectionPath();
if (path.getPathCount()>1) //选择的不是根节点
{ System.out.println(path);DefaultMutableTreeNode node = (DefaultMutableTreeNode) path.getLastPathComponent();  DefaultTreeModel treeModel= (DefaultTreeModel) tree.getModel();treeModel.removeNodeFromParent(node);
} */