仿QQ聊天軟件及源碼java版

 

一直以來，很多java的同志們都沒有一個完整資料來參考。把源碼貼出來，大家共享！

import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Dialog;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.Image;
import java.awt.Insets;
import java.awt.MenuItem;
import java.awt.PopupMenu;
import java.awt.Rectangle;
import java.awt.SystemTray;
import java.awt.Toolkit;
import java.awt.TrayIcon;
import java.awt.TrayIcon.MessageType;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
import java.net.SocketException;
import java.net.UnknownHostException;
import java.util.Date;
import java.util.Scanner;
import java.util.Stack;
import java.util.prefs.Preferences;

import javax.swing.BoxLayout;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JPopupMenu;
import javax.swing.JProgressBar;
import javax.swing.JScrollPane;
import javax.swing.JTabbedPane;
import javax.swing.JTextField;
import javax.swing.JToggleButton;
import javax.swing.ScrollPaneConstants;
import javax.swing.SwingConstants;
import javax.swing.UIManager;
import javax.swing.border.BevelBorder;
import javax.swing.border.Border;
import javax.swing.border.EmptyBorder;
import javax.swing.border.TitledBorder;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.DefaultTreeModel;
import javax.swing.tree.TreePath;


public class EQ extends JDialog{
    private JTextField ipEndTField;
    private JTextField ipStartTField;
    private JTextField userNameTField;//用戶框
    private JPasswordField passwordTField;//密碼框
    private JTextField placardPathTField;//placard:公告
    private JTextField updatePathTField;//更新路徑
    private JTextField pubPathTField;
    public static EQ frame = null;
    private ChatTree chatTree;
    private JPopupMenu popupMenu;//右鍵菜單
    private JTabbedPane tabbedPane;//分頁面板
    private JToggleButton searchUserButton;//搜索用戶按鈕
    private JProgressBar progressBar;//滾動條
    private JList faceList;
    private JButton selectInterfaceOKButton;
    private DatagramSocket ss;//數據報插座
    private final JLabel stateLabel;
    private static String user_dir;
    private static File localFile;
    private static File netFile;
    private String netFilePath;
    private JButton messageAlertButton;
    private Stack<String> messageStack;////Stack 類表示後進先出（LIFO）的對象堆棧。
    private ImageIcon messageAlertIcon;
    private ImageIcon messageAlertNullIcon;
    private Rectangle location;
    public static TrayIcon trayicon;
    private Dao dao;
    //Preferences.systeRoot:返回系統的根首選項節點   Preferences:參數選擇
    public final static Preferences preferences = Preferences.systemRoot();
    private JButton userInfoButton;
    //----------------------------------------------------------------------------------
    public static void main(String[] args){
        try{
            String laf = preferences.get("lookAndFeel", "java默認");
            if(laf.indexOf("當前系統") > -1){
                UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
            }
            EQ frame = new EQ();
            frame.setVisible(true);
            frame.SystemTrayInitial();// 初始化系統欄
            frame.server();
            frame.checkPlacard();
        }catch(Exception e){
            e.printStackTrace();
        }
    }
    //----------------------------------------------------------------------------------
    public EQ(){
        super(new JFrame());
        frame = this;
        dao = Dao.getDao();
        location = dao.getLocation();
        setTitle("EQ聊天");
        setBounds(location);
        progressBar = new JProgressBar();
        //BevelBorder:該類實現簡單的雙線斜面邊框。Bevel:斜面     lowered:凹入斜面類型。
        progressBar.setBorder(new BevelBorder(BevelBorder.LOWERED));
        tabbedPane = new JTabbedPane();
        popupMenu = new JPopupMenu();
        chatTree = new ChatTree(this);
        user_dir = System.getProperty("user.dir");// 程序執行路徑用於系統更新
        localFile = new File(user_dir + File.separator + "EQ.jar");// 本地EQ文件
        stateLabel = new JLabel();// 狀態欄標籤
        this.addWindowListener(new FrameWindowListener());// 添加窗體監視器
        this.addComponentListener(new ComponentAdapter(){
            public void componentResized(final ComponentEvent e){
                saveLocation();
            }
            public void componentMoved(final ComponentEvent e){
                saveLocation();
            }
        });
        try{// 啓動通訊服務端口
            ss = new DatagramSocket(1111);
        }catch(SocketException e2){
            if(e2.getMessage().startsWith("Address already in use")){
                showMessageDialog("服務端口被佔用,或者本軟件已經運行。");
            }
            System.exit(0);
        }
        {// 初始化公共信息按鈕
            messageAlertIcon = new ImageIcon(EQ.class.getResource("/image/messageAlert.gif"));
            messageAlertNullIcon = new ImageIcon(EQ.class.getResource("/image/messageAlertNull20.gif"));
            messageStack = new Stack<String>();
            messageAlertButton = new JButton();
            messageAlertButton.setHorizontalAlignment(SwingConstants.RIGHT);
            messageAlertButton.setContentAreaFilled(false);//不填充內容區域
            final JPanel BannerPanel = new JPanel();
            BannerPanel.setLayout(new BorderLayout());
            this.add(BannerPanel,BorderLayout.NORTH);
            userInfoButton = new JButton();
            BannerPanel.add(userInfoButton,BorderLayout.WEST);
            userInfoButton.setMargin(new Insets(0,0,0,10));//Margin:邊距    insets:插入
            initUserInfoButton();// 初始化本地用戶頭像按鈕
            BannerPanel.add(messageAlertButton,BorderLayout.CENTER);
            messageAlertButton.addActionListener(new ActionListener(){

                @Override
                public void actionPerformed(ActionEvent arg0) {
                    if(!messageStack.empty()){
                        showMessageDialog(messageStack.pop());//堆棧頂部的對象（Vector 對象中的最後一項）。
                    }
                }
            });
            messageAlertButton.setIcon(messageAlertIcon);
            showMessageBar();
        }
        this.add(tabbedPane,BorderLayout.CENTER);
        tabbedPane.setTabPlacement(SwingConstants.LEFT);//設置此選項卡窗格的選項卡布局
        ImageIcon userTicon = new ImageIcon(EQ.class.getResource("/image/tabIcon/tabLeft.PNG"));
        tabbedPane.addTab(null,userTicon,createUserList(),"用戶列表");
        ImageIcon sysOTicon = new ImageIcon(EQ.class.getResource("/image/tabIcon/tabLeft2.PNG"));
        tabbedPane.addTab(null, sysOTicon, createSysToolPanel(), "系統操作");
        ImageIcon sysSTicon = new ImageIcon(EQ.class.getResource("/image/tabIcon/tabLeft3.png"));
        tabbedPane.addTab(null, sysSTicon, createSysSetPanel(), "系統設置");
        this.setAlwaysOnTop(true);//總在頂部
    }
    //----------------------------------------------------------------------------------
    private JScrollPane createSysSetPanel(){//系統設置面板
        final JPanel sysSetPanel = new JPanel();
        JScrollPane scrollPane = new JScrollPane(sysSetPanel);
        sysSetPanel.setLayout(new BoxLayout(sysSetPanel,BoxLayout.Y_AXIS));
        scrollPane.setBorder(new EmptyBorder(0,0,0,0));
        final JPanel sysPathPanel = new JPanel();
        sysPathPanel.setMaximumSize(new Dimension(600,200));
        sysPathPanel.setBorder(new TitledBorder("系統路徑"));//title - 邊框應顯示的標題
        sysPathPanel.setLayout(new GridLayout(0,1));
        sysSetPanel.add(sysPathPanel);
        sysPathPanel.add(new JLabel("程序升級路徑"));
        updatePathTField = new JTextField(preferences.get("updatePath", "請輸入路徑"));
        sysPathPanel.add(updatePathTField);
        sysPathPanel.add(new JLabel("系統公告路徑："));
        placardPathTField = new JTextField(preferences.get("placardPath","請輸入路徑"));
        sysPathPanel.add(placardPathTField);
        sysPathPanel.add(new JLabel("公共程序路徑："));
        pubPathTField = new JTextField(preferences.get("pubPath", "請輸入路徑"));
        sysPathPanel.add(pubPathTField);
        final JButton pathOKButton = new JButton("確定");
        pathOKButton.setActionCommand("sysOK");
        pathOKButton.addActionListener(new SysSetPanelOKListener());
        sysSetPanel.add(pathOKButton);
        final JPanel loginPanel = new JPanel();
        loginPanel.setMaximumSize(new Dimension(600, 90));
        loginPanel.setBorder(new TitledBorder("登錄升級服務器"));
        final GridLayout gridLayout_1 = new GridLayout(0, 1);
        gridLayout_1.setVgap(5);
        loginPanel.setLayout(gridLayout_1);
        sysSetPanel.add(loginPanel);
        final JPanel panel_7 = new JPanel();
        panel_7.setLayout(new BoxLayout(panel_7, BoxLayout.X_AXIS));
        loginPanel.add(panel_7);
        panel_7.add(new JLabel("用戶名："));
        userNameTField = new JTextField(preferences.get("username", "請輸入用戶名"));
        panel_7.add(userNameTField);
        final JPanel panel_8 = new JPanel();
        panel_8.setLayout(new BoxLayout(panel_8, BoxLayout.X_AXIS));
        loginPanel.add(panel_8);
        panel_8.add(new JLabel("密　碼："));
        passwordTField = new JPasswordField("*****");
        panel_8.add(passwordTField);
        final JButton loginOKButton = new JButton("確定");
        sysSetPanel.add(loginOKButton);
        loginOKButton.setActionCommand("loginOK");
        loginOKButton.addActionListener(new SysSetPanelOKListener());
        final JPanel ipPanel = new JPanel();
        final GridLayout gridLayout_2 = new GridLayout(0, 1);
        gridLayout_2.setVgap(5);
        ipPanel.setLayout(gridLayout_2);
        ipPanel.setMaximumSize(new Dimension(600, 90));
        ipPanel.setBorder(new TitledBorder("IP搜索範圍"));
        sysSetPanel.add(ipPanel);
        final JPanel panel_5 = new JPanel();
        panel_5.setLayout(new BoxLayout(panel_5, BoxLayout.X_AXIS));
        ipPanel.add(panel_5);
        panel_5.add(new JLabel("起始IP："));
        ipStartTField = new JTextField(preferences.get("ipStart", "192.168.0.1"));
        panel_5.add(ipStartTField);
        final JPanel panel_6 = new JPanel();
        panel_6.setLayout(new BoxLayout(panel_6, BoxLayout.X_AXIS));
        ipPanel.add(panel_6);
        panel_6.add(new JLabel("終止IP："));
        ipEndTField = new JTextField(preferences.get("ipEnd", "192.168.1.255"));
        panel_6.add(ipEndTField);
        final JButton ipOKButton = new JButton("確定");
        ipOKButton.setActionCommand("ipOK");
        ipOKButton.addActionListener(new SysSetPanelOKListener());
        sysSetPanel.add(ipOKButton);
        return scrollPane;
    }
    //----------------------------------------------------------------------------------
    private JScrollPane createUserList(){// 用戶列表面板
        JScrollPane scrollPane = new JScrollPane();
        scrollPane.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
        addUserPopup(chatTree,getPopupMenu());// 爲用戶添加彈出菜單
        scrollPane.setViewportView(chatTree);
        scrollPane.setBorder(new EmptyBorder(0,0,0,0));
        chatTree.addMouseListener(new ChatTreeMouseListener());

        return scrollPane;
    }
    //----------------------------------------------------------------------------------
    private JScrollPane createSysToolPanel() {// 系統工具面板
        JPanel sysToolPanel = new JPanel(); // 系統工具面板
        sysToolPanel.setLayout(new BorderLayout());
        JScrollPane sysToolScrollPanel = new JScrollPane();
        sysToolScrollPanel
                .setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
        sysToolScrollPanel.setBorder(new EmptyBorder(0, 0, 0, 0));
        sysToolScrollPanel.setViewportView(sysToolPanel);
        sysToolPanel.setBorder(new BevelBorder(BevelBorder.LOWERED));
        JPanel interfacePanel = new JPanel();
        sysToolPanel.add(interfacePanel, BorderLayout.NORTH);
        interfacePanel.setLayout(new BorderLayout());
        interfacePanel.setBorder(new TitledBorder("界面選擇-再次啓動生效"));
        faceList = new JList(new String[]{"當前系統", "java默認"});
        interfacePanel.add(faceList);
        faceList.setBorder(new BevelBorder(BevelBorder.LOWERED));
        final JPanel interfaceSubPanel = new JPanel();
        interfaceSubPanel.setLayout(new FlowLayout());
        interfacePanel.add(interfaceSubPanel, BorderLayout.SOUTH);
        selectInterfaceOKButton = new JButton("確定");
        selectInterfaceOKButton.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                preferences.put("lookAndFeel", faceList.getSelectedValue().toString());
                JOptionPane.showMessageDialog(EQ.this, "重新運行本軟件後生效");
            }
        });
        interfaceSubPanel.add(selectInterfaceOKButton);

        JPanel searchUserPanel = new JPanel(); // 用戶搜索面板
        sysToolPanel.add(searchUserPanel);
        searchUserPanel.setLayout(new BorderLayout());
        final JPanel searchControlPanel = new JPanel();
        searchControlPanel.setLayout(new GridLayout(0, 1));
        searchUserPanel.add(searchControlPanel, BorderLayout.SOUTH);
        final JList searchUserList = new JList(new String[]{"檢測用戶列表"});// 新添加用戶列表
        final JScrollPane scrollPane_2 = new JScrollPane(searchUserList);
        scrollPane_2.setDoubleBuffered(true);
        searchUserPanel.add(scrollPane_2);
        searchUserList.setBorder(new BevelBorder(BevelBorder.LOWERED));
        searchUserButton = new JToggleButton();
        searchUserButton.setText("搜索新用戶");
        searchUserButton.addActionListener(new SearchUserActionListener(searchUserList));
        searchControlPanel.add(progressBar);
        searchControlPanel.add(searchUserButton);
        searchUserPanel.setBorder(new TitledBorder("搜索用戶"));

        final JPanel sysUpdatePanel = new JPanel();
        sysUpdatePanel.setOpaque(false);
        sysUpdatePanel.setLayout(new GridBagLayout());
        sysUpdatePanel.setBorder(new TitledBorder("系統操作"));
        sysToolPanel.add(sysUpdatePanel, BorderLayout.SOUTH);
        final JButton sysUpdateButton = new JButton("系統更新");
        final GridBagConstraints gridBagConstraints_1 = new GridBagConstraints();
        gridBagConstraints_1.gridx = 0;
        gridBagConstraints_1.gridy = 0;
        sysUpdatePanel.add(sysUpdateButton, gridBagConstraints_1);
        sysUpdateButton.addActionListener(new SysUpdateListener());// 添加系統更新事件
        final JLabel updateLabel = new JLabel("最近更新：");
        final GridBagConstraints updateLabelLayout = new GridBagConstraints();
        updateLabelLayout.gridy = 1;
        updateLabelLayout.gridx = 0;
        sysUpdatePanel.add(updateLabel, updateLabelLayout);
        final JLabel updateDateLabel = new JLabel();// 程序更新日期標籤
        Date date = new Date(localFile.lastModified());
        String dateStr = String.format("%tF %<tr", date);
        updateDateLabel.setText(dateStr);
        final GridBagConstraints updateDateLayout = new GridBagConstraints();
        updateDateLayout.gridy = 2;
        updateDateLayout.gridx = 0;
        sysUpdatePanel.add(updateDateLabel, updateDateLayout);
        final JLabel updateStaticLabel = new JLabel("更新狀態：");
        final GridBagConstraints updateStaticLayout = new GridBagConstraints();
        updateStaticLayout.gridy = 3;
        updateStaticLayout.gridx = 0;
        sysUpdatePanel.add(updateStaticLabel, updateStaticLayout);
        final JLabel updateInfoLabel = new JLabel();// 版本信息標籤
        checkSysInfo(updateInfoLabel);// 調用檢測版本更新的方法
        final GridBagConstraints gridBagConstraints_5 = new GridBagConstraints();
        gridBagConstraints_5.gridy = 4;
        gridBagConstraints_5.gridx = 0;
        sysUpdatePanel.add(updateInfoLabel, gridBagConstraints_5);
        JPanel statePanel = new JPanel();
        add(statePanel, BorderLayout.SOUTH);
        statePanel.setLayout(new BorderLayout());
        statePanel.add(stateLabel);
        stateLabel.setText("總人數：" + chatTree.getRowCount());
        return sysToolScrollPanel;
    }
    //----------------------------------------------------------------------------------
    private void initUserInfoButton(){
        try{
            String ip = InetAddress.getLocalHost().getHostAddress();
            User user = dao.getUser(ip);
            userInfoButton.setIcon(user.getIconImg());
            userInfoButton.setText(user.getName());
            userInfoButton.setIconTextGap(JLabel.RIGHT);
            userInfoButton.setToolTipText(user.getTipText());
            userInfoButton.getParent().doLayout();
        }catch(UnknownHostException e1){
            e1.printStackTrace();
        }
    }
    //----------------------------------------------------------------------------------
    private void showMessageBar(){// 顯示公告信息按鈕的線程
        new Thread(new Runnable() {
            public void run() {
                while (true) {
                    if (!messageStack.empty()) {
                        try {
                            messageAlertButton.setIcon(messageAlertNullIcon);
                            messageAlertButton.setPreferredSize(new Dimension(20, 20));
                            Thread.sleep(500);
                            messageAlertButton.setIcon(messageAlertIcon);
                            Thread.sleep(500);
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                    } else {
                        try {
                            Thread.sleep(3000);
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                    }
                }
            }
        }).start();
    }
    //----------------------------------------------------------------------------------
    private void checkSysInfo(final JLabel updateInfo){
        new Thread(new Runnable(){
            public void run(){
                String info = "";
                while(true){
                    try{
                        netFilePath = preferences.get("updatePath", "EQ.jar");
                        if(netFilePath.equals("EQ.jar")){
                            info = "<html><center><font color=red><b>無法登錄</b><br>未設置升級路徑</font></center></html>";
                            updateInfo.setText(info);
                            continue;
                        }
                        netFile = new File(netFilePath);
                        if(netFile.exists()){
                            Date netDate = new Date(netFile.lastModified());
                            if(!localFile.exists()){
                                info = "<html><font color=blue>本地程序位置出錯！</font></html>";
                            }else{
                                Date localDate = new Date(localFile.lastModified());
                                if(netDate.after(localDate)){
                                    info = "<html><font color=blue>網絡上有最新程序！</font></html>";
                                    pushMessage(info);
                                }else{
                                    info = "<html><font color=green>現在是最新程序！</font></html>";
                                }
                            }
                        }else{
                            info = "<html><center><font color=red><b>無法訪問</b><br>升級路徑</font></center></html>";
                        }
                        updateInfo.setText(info);
                        Thread.sleep(5*1000);
                    }catch(InterruptedException e){
                        e.printStackTrace();
                    }
                }
            }
        }).start();
    }
    //----------------------------------------------------------------------------------
    class SearchUserActionListener implements ActionListener{
        private final JList list;
        SearchUserActionListener(JList list){
            this.list = list;
        }

        @Override
        public void actionPerformed(ActionEvent e) {
            // TODO Auto-generated method stub
            if(searchUserButton.isSelected()){
                searchUserButton.setText("停止搜索");
                new Thread(new Runnable(){
                    public void run(){
                        Resource.searchUsers(chatTree, progressBar,list, searchUserButton);
                    }
                }).start();
            }else{
                searchUserButton.setText("搜索新用戶");
            }

        }
    }
    //----------------------------------------------------------------------------------
    class SysSetPanelOKListener implements ActionListener{

        @Override
        public void actionPerformed(ActionEvent e) {
            // TODO Auto-generated method stub
            String command = e.getActionCommand();
            if(command.equals("sysOK")){
                String updatePath = updatePathTField.getText();
                String placardPath = placardPathTField.getText();
                String pubPath = pubPathTField.getText();
                preferences.put("updatePath", updatePath); // 設置系統升級路徑
                preferences.put("placardPath", placardPath);// 設置系統公告路徑
                preferences.put("pubPath", pubPath); // 設置公共程序路徑
                JOptionPane.showMessageDialog(EQ.this, "系統設置保存完畢");
            }
            if (command.equals("loginOK")) {
                String username = userNameTField.getText();
                String password = new String(passwordTField.getPassword());
                preferences.put("username", username); // 設置系統升級路徑
                preferences.put("password", password);// 設置系統公告路徑
                JOptionPane.showMessageDialog(EQ.this, "登錄設置保存完畢");
            }
            if (command.equals("ipOK")) {
                String ipStart = ipStartTField.getText();
                String ipEnd = ipEndTField.getText();
                try {
                    InetAddress.getByName(ipStart);
                    InetAddress.getByName(ipEnd);
                } catch (UnknownHostException e1) {
                    JOptionPane.showMessageDialog(EQ.this, "IP地址格式錯誤");
                    return;
                }
                preferences.put("ipStart", ipStart); // 設置系統升級路徑
                preferences.put("ipEnd", ipEnd);// 設置系統公告路徑
                JOptionPane.showMessageDialog(EQ.this, "IP設置保存完畢");
            }
        }
    }
    //----------------------------------------------------------------------------------
    private final class SysUpdateListener implements ActionListener{// 系統更新事件

        @Override
        public void actionPerformed(final ActionEvent e) {
            // TODO Auto-generated method stub
            String username = preferences.get("username", null);
            String password = preferences.get("password", null);
            if(username == null || password == null){
                pushMessage("未設置登錄升級服務器的用戶名或密碼");
                return;
            }
            Resource.loginPublic(username, password);
            updateProject();
        }
    }
    //----------------------------------------------------------------------------------
    private class ChatTreeMouseListener extends MouseAdapter{// 用戶列表的監聽器
        public void mouseClicked(final MouseEvent e){
            if (e.getClickCount() == 2) {
                TreePath path = chatTree.getSelectionPath();
                if (path == null)
                    return;
                DefaultMutableTreeNode node = (DefaultMutableTreeNode) path
                        .getLastPathComponent();
                User user = (User) node.getUserObject();
                try {
                    TelFrame.getInstance(ss, new DatagramPacket(new byte[0], 0,
                            InetAddress.getByName(user.getIp()), 1111),
                            chatTree);
                } catch (IOException e1) {
                    e1.printStackTrace();
                }
            }
        }
    }
    //----------------------------------------------------------------------------------
    private void server(){// 服務器啓動方法
        new Thread(new Runnable(){
            public void run(){
                while(true){
                    if(ss != null){
                        byte[] buf = new byte[4096];
                        DatagramPacket dp = new DatagramPacket(buf,buf.length);
                        try{
                            ss.receive(dp);
                        }catch(IOException e){
                            e.printStackTrace();
                        }
                        TelFrame.getInstance(ss,dp,chatTree);
                    }
                }
            }
        }).start();
    }
    //----------------------------------------------------------------------------------
    private void addUserPopup(Component component, final JPopupMenu popup){// 添加用戶彈出菜單
        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){
                if(chatTree.getSelectionPaths() == null){
                    popupMenu.getComponent(0).setEnabled(false);
                    popupMenu.getComponent(2).setEnabled(false);
                    popupMenu.getComponent(3).setEnabled(false);
                    popupMenu.getComponent(4).setEnabled(false);
                    popupMenu.getComponent(5).setEnabled(false);
                }else{
                    if(chatTree.getSelectionPaths().length < 2){
                        popupMenu.getComponent(3).setEnabled(false);
                    }else {
                        popupMenu.getComponent(3).setEnabled(true);
                    }
                    popupMenu.getComponent(0).setEnabled(true);
                    popupMenu.getComponent(2).setEnabled(true);
                    popupMenu.getComponent(4).setEnabled(true);
                    popupMenu.getComponent(5).setEnabled(true);
                }
                popup.show(e.getComponent(), e.getX(), e.getY());
            }
        });
    }
    //----------------------------------------------------------------------------------
    private void saveLocation(){// 保存主窗體位置的方法
        location = getBounds();
        dao.updateLocation(location);
    }
    //----------------------------------------------------------------------------------
    protected JPopupMenu getPopupMenu(){// 創建用戶彈出菜單
        if (popupMenu == null) {
            popupMenu = new JPopupMenu();
            popupMenu.setOpaque(false);
        }
        final JMenuItem rename = new JMenuItem();
        popupMenu.add(rename);
        rename.addActionListener(new RenameActionListener());
        rename.setText("更名");
        final JMenuItem addUser = new JMenuItem();
        addUser.addActionListener(new AddUserActionListener());
        popupMenu.add(addUser);
        addUser.setText("添加用戶");
        final JMenuItem delUser = new JMenuItem();
        delUser.addActionListener(new delUserActionListener());
        popupMenu.add(delUser);
        delUser.setText("刪除用戶");
        final JMenuItem messagerGroupSend = new JMenuItem();
        messagerGroupSend
                .addActionListener(new messagerGroupSendActionListener());
        messagerGroupSend.setText("信使羣發");
        popupMenu.add(messagerGroupSend);
        final JMenuItem accessComputerFolder = new JMenuItem("訪問主機資源");
        accessComputerFolder.setActionCommand("computer");
        popupMenu.add(accessComputerFolder);
        accessComputerFolder
                .addActionListener(new accessFolderActionListener());
        final JMenuItem accessPublicFolder = new JMenuItem();
        popupMenu.add(accessPublicFolder);
        accessPublicFolder.setOpaque(false);
        accessPublicFolder.setText("訪問公共程序");
        accessPublicFolder.setActionCommand("public");
        accessPublicFolder.addActionListener(new accessFolderActionListener());
        return popupMenu;
    }
    //----------------------------------------------------------------------------------
    private void updateProject(){// 程序更新方法
        netFilePath = preferences.get("updatePath", "EQ.jar");
        if(netFilePath.equals("EQ.jar")){
            pushMessage("未設置升級路徑");
            return;
        }
        netFile = new File(netFilePath);
        localFile = new File(user_dir + File.separator + "EQ.jar");
        if (localFile != null && netFile != null && netFile.exists()
                && localFile.exists()) {
            Date netDate = new Date(netFile.lastModified());
            Date localDate = new Date(localFile.lastModified());
            if (netDate.after(localDate)) {
                new Thread(new Runnable() {
                    public void run() {
                        try {
                            Dialog frameUpdate = new UpdateFrame();
                            frameUpdate.setVisible(true);
                            Thread.sleep(2000);
                            FileInputStream fis = new FileInputStream(netFile);
                            FileOutputStream fout = new FileOutputStream(
                                    localFile);
                            int len = fis.available();
                            if (len > 0) {
                                byte[] data = new byte[len];
                                if (fis.read(data) > 0) {
                                    fout.write(data);
                                }
                            }
                            fis.close();
                            fout.close();
                            frameUpdate.setVisible(false);
                            frameUpdate = null;
                            showMessageDialog("更新完畢，請重新啓動程序。");
                        } catch (Exception e) {
                            e.printStackTrace();
                        }
                    }
                }).start();
            } else {
                showMessageDialog("已經是最新的程序了。");
            }
        }
    }
    //----------------------------------------------------------------------------------
    private void checkPlacard() { // 檢測公告信息方法
        String placardDir = preferences.get("placardPath", null);
        if (placardDir == null) {
            pushMessage("未設置公告路徑");
            return;
        }
        File placard = new File(placardDir);
        try {
            if (placard.exists() && placard.isFile()) {
                StringBuilder placardStr = new StringBuilder();
                Scanner sc = new Scanner(new FileInputStream(placard));
                while (sc.hasNextLine()) {
                    placardStr.append(sc.nextLine());
                }
                pushMessage(placardStr.toString());
            }
        } catch (FileNotFoundException e) {
            pushMessage("公告路徑錯誤，或公告文件不存在");
        }
    }
    //----------------------------------------------------------------------------------
    public void setStatic(String str){// 設置狀態欄信息
        if(stateLabel != null){
            stateLabel.setText(str);
        }
    }

    public void pushMessage(String info){// 堆壓信息
        if(!messageStack.contains(info)){
            messageStack.push(info);
        }
    }

    private void showMessageDialog(String message){
        JOptionPane.showMessageDialog(this, message);
    }
    //----------------------------------------------------------------------------------
    private String showInputDialog(String str){// 顯示輸入對話框
        String newName = JOptionPane.showInputDialog(this,
                "<html>輸入<font color=red>" + str + "</font>的新名字</html>");
        return newName;
    }
    private class accessFolderActionListener implements ActionListener {// 訪問資源
        public void actionPerformed(final ActionEvent e) {
            TreePath path = chatTree.getSelectionPath();
            if (path == null)
                return;
            DefaultMutableTreeNode node = (DefaultMutableTreeNode) path
                    .getLastPathComponent();
            User user = (User) node.getUserObject();
            String ip = "\\\\"+user.getIp();
            String command = e.getActionCommand();
            if (command.equals("computer")) {
                Resource.startFolder(ip);
            }
            if (command.equals("public")) {
                String serverPaeh = preferences.get("pubPath", null);
                if (serverPaeh == null) {
                    pushMessage("未設置公共程序路徑");
                    return;
                }
                Resource.startFolder(serverPaeh);
            }
        }
    }

    private class RenameActionListener implements ActionListener {// 更名
        public void actionPerformed(final ActionEvent e) {
            TreePath path = chatTree.getSelectionPath();
            if (path == null)
                return;
            DefaultMutableTreeNode node = (DefaultMutableTreeNode) path
                    .getLastPathComponent();
            User user = (User) node.getUserObject();
            String newName = showInputDialog(user.getName());
            if (newName != null && !newName.isEmpty()) {
                user.setName(newName);
                dao.updateUser(user);
                DefaultTreeModel model = (DefaultTreeModel) chatTree.getModel();
                model.reload();
                chatTree.setSelectionPath(path);
                initUserInfoButton();
            }
        }
    }
    private class FrameWindowListener extends WindowAdapter {
        public void windowClosing(final WindowEvent e) {// 系統關閉事件
            setVisible(false);
        }
    }
    private class AddUserActionListener implements ActionListener {
        public void actionPerformed(final ActionEvent e) {// 添加用戶
            String ip = JOptionPane.showInputDialog(EQ.this, "輸入新用戶IP地址");
            if (ip != null)
                chatTree.addUser(ip, "add");
        }
    }
    private class delUserActionListener implements ActionListener {
        public void actionPerformed(final ActionEvent e) {// 刪除用戶
            chatTree.delUser();
        }
    }
    private class messagerGroupSendActionListener implements ActionListener {// 信使羣發
        public void actionPerformed(final ActionEvent e) {
            String message = JOptionPane.showInputDialog(EQ.this, "請輸入羣發信息",
                    "信使羣發", JOptionPane.INFORMATION_MESSAGE);
            if (message != null && !message.equals("")) {
                TreePath[] selectionPaths = chatTree.getSelectionPaths();
                Resource.sendGroupMessenger(selectionPaths, message);
            } else if (message != null && message.isEmpty()) {
                JOptionPane.showMessageDialog(EQ.this, "不能發送空信息！");
            }
        }
    }
    private void SystemTrayInitial() { // 系統欄初始化
        if (!SystemTray.isSupported()) // 判斷當前系統是否支持系統欄
            return;
        try {
            String title = "TT";
            String company = "成都市同道科技有限公司";
            SystemTray sysTray = SystemTray.getSystemTray();
            Image image = Toolkit.getDefaultToolkit().getImage(
                    EQ.class.getResource("/icons/sysTray.png"));// 系統欄圖標
            trayicon = new TrayIcon(image, title + "\n" + company, createMenu());
            trayicon.setImageAutoSize(true);
            trayicon.addActionListener(new SysTrayActionListener());
            sysTray.add(trayicon);
            trayicon.displayMessage(title, company, MessageType.INFO);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    private PopupMenu createMenu() { // 創建系統欄菜單的方法
        PopupMenu menu = new PopupMenu();
        MenuItem exitItem = new MenuItem("退出");
        exitItem.addActionListener(new ActionListener() { // 系統欄退出事件
                    public void actionPerformed(ActionEvent e) {
                        System.exit(0);
                    }
                });
        MenuItem openItem = new MenuItem("打開");
        openItem.addActionListener(new ActionListener() {// 系統欄打開菜單項事件
                    public void actionPerformed(ActionEvent e) {
                        if (!isVisible()) {
                            setVisible(true);
                            toFront();
                        } else
                            toFront();
                    }
                });

        // 系統欄的訪問服務器菜單項事件
        MenuItem publicItem = new MenuItem("訪問服務器");
        publicItem.addActionListener(new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                String serverPaeh = preferences.get("pubPath", null);
                if (serverPaeh == null) {
                    pushMessage("未設置公共程序路徑");
                    return;
                }
                Resource.startFolder(serverPaeh);
            }
        });
        menu.add(publicItem);
        menu.add(openItem);
        menu.addSeparator();
        menu.add(exitItem);
        return menu;
    }
    class SysTrayActionListener implements ActionListener {// 系統欄雙擊事件
        public void actionPerformed(ActionEvent e) {
            setVisible(true);
            toFront();
        }
    }
}