Java 系统托盘Demo

package Test;

import java.awt.AWTException;import java.awt.Image;import java.awt.MenuItem;import java.awt.PopupMenu;import java.awt.SystemTray;import java.awt.Toolkit;import java.awt.TrayIcon;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.MouseEvent;import java.net.MalformedURLException;import java.net.URL;import javax.swing.ImageIcon;import javax.swing.JFrame;import javax.swing.JLabel;

public class SystemTrayDemo extends JFrame {    private TrayIcon trayIcon = null;

    public SystemTrayDemo() {        this.setTitle("系统托盘的例子");        jbInit();        this.setSize(200, 250);        this.setLocation(300, 300);    }

    public void jbInit() {        if (SystemTray.isSupported()) { // 检查当前系统是否支持系统托盘            SystemTray tray = SystemTray.getSystemTray();             URL IconUrl = null;            try {                IconUrl = new URL("http://www.tuxiu.com/sucai/16x16/hn2_sunny.gif");            } catch (MalformedURLException e1) {                e1.printStackTrace();            }            ImageIcon imageIcon = new ImageIcon(IconUrl);            Image image = imageIcon.getImage();            PopupMenu popupMenu = new PopupMenu(); //获取popupMenu对象            MenuItem exitItem = new MenuItem("关闭");            MenuItem menuItema = new MenuItem("menu a");            MenuItem menuItemb = new MenuItem("menu b");            MenuItem menuItemc = new MenuItem("menu c");            MenuItem menuItemd = new MenuItem("menu d");            exitItem.addActionListener(new ActionListener() {                public void actionPerformed(ActionEvent e) {                    try {                        System.exit(0);                    } catch (Exception ex) {                        ex.printStackTrace();                    }                }            });            popupMenu.add(menuItema);            popupMenu.add(menuItemb);            popupMenu.add(menuItemc);            popupMenu.add(menuItemd);            popupMenu.add(exitItem);            trayIcon = new TrayIcon(image, "系统托盘Demo", popupMenu);            trayIcon.addMouseListener(new java.awt.event.MouseAdapter() {                @Override                public void mouseClicked(MouseEvent e) {                    if (e.getClickCount() == 2) {                        showIT(true);                    }                }            });            try {                tray.add(trayIcon); // 将 TrayIcon 添加到 SystemTray。            } catch (AWTException e) {                System.err.println(e);            }        } else {            System.out.println("你的系统不支持系统托盘");        }        ImageIcon icon = new ImageIcon();        try {            URL url = new URL("http://img1.qq.com/ent/pics/11436/11436218.jpg");            icon = new ImageIcon(url);        } catch (Exception e) {

        }        JLabel label = new JLabel();        label.setIcon(icon);        this.add(label);    }

    public void showIT(boolean visable) {        if (this.isVisible() != visable)            this.setVisible(visable);    }

    public static void main(String[] args) {        javax.swing.SwingUtilities.invokeLater(new Runnable() {            public void run() {                new SystemTrayDemo().setVisible(true);            }        });    }}