swing托盘使用

 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 javax.swing.JFrame;


 public class MySystemTray extends JFrame{

     public MySystemTray() {
         init();
     }

     public void init() {

         this.setSize(300, 200);
         this.setLocationRelativeTo(null);
         this.setTray();
         this.setVisible(true);
     }

     //添加托盘显示：1.先判断当前平台是否支持托盘显示
     public void setTray() {

         if(SystemTray.isSupported()){//判断当前平台是否支持托盘功能
             //创建托盘实例
             SystemTray tray = SystemTray.getSystemTray();
             //创建托盘图标：1.显示图标Image 2.停留提示text 3.弹出菜单popupMenu 4.创建托盘图标实例
             //1.创建Image图像
             Image image = Toolkit.getDefaultToolkit().getImage("trayIconImage/clientIcon.jpg");
             //2.停留提示text
             String text = "MySystemTray";
             //3.弹出菜单popupMenu
             PopupMenu popMenu = new PopupMenu();
             MenuItem itmOpen = new MenuItem("打开");
             itmOpen.addActionListener(new ActionListener(){
                 public void actionPerformed(ActionEvent e) {
                     Show();
                 }
             });
             MenuItem itmHide = new MenuItem("隐藏");
             itmHide.addActionListener(new ActionListener(){
                 public void actionPerformed(ActionEvent e) {
                     UnVisible();
                 }
             });
             MenuItem itmExit = new MenuItem("退出");
             itmExit.addActionListener(new ActionListener(){
                 public void actionPerformed(ActionEvent e) {
                     Exit();
                 }
             });
             popMenu.add(itmOpen);
             popMenu.add(itmHide);
             popMenu.add(itmExit);

             //创建托盘图标
             TrayIcon trayIcon = new TrayIcon(image,text,popMenu);
             //将托盘图标加到托盘上
             try {
                 tray.add(trayIcon);
             } catch (AWTException e1) {
                 e1.printStackTrace();
             }
         }
     }

     //内部类中不能直接调用外部类（this不能指向）
     public void UnVisible() {
         this.setVisible(false);
     }
     public void Show() {
         this.setVisible(true);
     }
     public void Exit() {
         System.exit(0);
     }


     public static void main(String[] args) {
         new MySystemTray();
     }
 }