Java程序实现系统托盘菜单

import java.awt.FlowLayout;
import java.awt.MenuItem;
import java.awt.PopupMenu;
import java.awt.SystemTray;
import java.awt.TrayIcon;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.net.URL;

import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
/**
* Java托盘菜单
* @author 小叶
* @since 2011-08-29 23:36
*
*/
public class SystemTrayFrame extends JFrame {
/**系统托盘*/
private SystemTray systemTray;

/**托盘图标*/
private TrayIcon trayIcon;

public SystemTrayFrame() throws Exception {
setTitle("托盘菜单");
setLayout(new FlowLayout(FlowLayout.CENTER));
add(new JButton("托盘菜单"));
setSize(180, 100);
setLocationRelativeTo(null);
setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
setVisible(false);
}
});

if (SystemTray.isSupported()) { //当前平台是否支持系统托盘
//创建一个右键弹出菜单
PopupMenu popupMenu = new PopupMenu();
MenuItem mi = new MenuItem("打开主面板");
MenuItem exit = new MenuItem("退出");
popupMenu.add(mi);
popupMenu.add(exit);
mi.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
setVisible(true);
}

});
exit.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
System.exit(0);
}
});
ClassLoader cl = this.getClass().getClassLoader();
URL url = cl.getResource("resource/tray.jpg");
ImageIcon icon = new ImageIcon(url);
//创建托盘图标
trayIcon = new TrayIcon(icon.getImage(), "Java托盘菜单", popupMenu);
//获取托盘菜单
systemTray = SystemTray.getSystemTray();
//添加托盘图标
systemTray.add(trayIcon);
}
}
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