转载:JFrame 创建系统托盘中的图标

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(); 
    } 
}