java程序加到系统托盘的方法

package swingtest;


import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.UnsupportedEncodingException;
import java.net.URL;
import java.util.Random;


public class MainFrame extends JFrame implements ActionListener {

    private static final long serialVersionUID = -7078030311369039390L;
    private JMenu menu;
    private JMenuBar jmenuBar;
    private String[] jmItemName = {"置于托盘", "系统退出"};

    private MainFrame() throws UnsupportedEncodingException {
        super("电话薄");
        init();
        this.setSize(500, 400);
        this.setJMenuBar(jmenuBar);
        this.setLocationRelativeTo(null);

        JButton jbutton = new JButton("test");
        add(jbutton);


        systemTray(jbutton);    //系统托盘
    }

    /**
     * 初始化界面
     */
    private void init() {
        menu = new JMenu("系统窗体");
        for (String s : jmItemName) {
            JMenuItem menuItem = new JMenuItem(s);
            menuItem.addActionListener(this);
            menu.add(menuItem);
        }
        this.jmenuBar = new JMenuBar();
        this.jmenuBar.add(menu);
    }

    @Override
    public void actionPerformed(ActionEvent e) {
        String actions = e.getActionCommand();
        if ("置于托盘".equals(actions)) {
            this.setVisible(false);
        }
        if ("系统退出".equals(actions)) {
            System.exit(0);
        }

    }

    /**
     * 系统托盘图标处理.
     *
     * @param jbutton
     */
    private void systemTray(JButton jbutton) throws UnsupportedEncodingException {
        if (SystemTray.isSupported()) {    //判断系统是否支持托盘功能.
//            URL resource = this.getClass().getResource("car.jpg");    //获得图片路径

            URL resource = getClass().getClassLoader().getResource("car.jpg");
//            File targetFile = new File("files/8k.wav");

//            ClassPathResource classPathResource = new ClassPathResource("static/something.txt");
//
//            InputStream inputStream = classPathResource.getInputStream();
            ImageIcon icon = new ImageIcon(resource); //创建图片对象
            JPopupMenu popupMenu = new JPopupMenu(); //创建弹出菜单对象
            JMenuItem itemExit = new JMenuItem("退出系统");    //创建弹出菜单中的退出项
            JMenuItem itemShow = new JMenuItem("显示窗体"); //创建弹出菜单中的显示主窗体项.


            popupMenu.add(itemExit);
            popupMenu.add(itemShow);
            TrayIcon trayIcon = new TrayIcon(icon.getImage(), "电话薄系统");
            SystemTray sysTray = SystemTray.getSystemTray();

            try {
                sysTray.add(trayIcon);
            } catch (AWTException ignored) {
            }
            trayIcon.addMouseListener(new MouseAdapter() {
                @Override
                public void mouseReleased(MouseEvent e) {
                    if (e.isPopupTrigger()) {
                        popupMenu.setLocation(e.getX(), e.getY());
                        popupMenu.setInvoker(popupMenu);
                        popupMenu.setVisible(true);
                    }
                }
            });
            //给窗体最小化添加事件监听.
            itemShow.addActionListener(e -> {
                setVisible(true);

            });
            //给退出像添加事件监听
            itemExit.addActionListener(e -> {
//                System.exit(0);
                sysTray.remove(trayIcon);
                dispose();
            });
            int count = 0;
            jbutton.addActionListener(e -> {
                TrayIcon trayIcon4 = new TrayIcon(icon.getImage(), "电话薄系统");
                try {
                    sysTray.add(trayIcon4);
                } catch (AWTException ex) {
                    ex.printStackTrace();
                }
            });

        }
    }

    /**
     * 主方法
     *
     * @param args sdf
     */
    public static void main(String[] args) throws UnsupportedEncodingException {
        new MainFrame().setVisible(true);
    }
}