在Windows/Linux/Mac上的Java程序中对全局热键做出反应？

import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.JFrame;
import javax.swing.JPanel;

JPanel panel = new JPanel();
panel.addKeyListener(new KeyListener() {
    @Override
    public void keyTyped(KeyEvent e) {}

    @Override
    public void keyPressed(KeyEvent e) {
        if (e.getKeyCode() == KeyEvent.VK_F1) {
            System.out.println("全局热键F1被按下");
        }
    }

    @Override
    public void keyReleased(KeyEvent e) {}
});

JFrame frame = new JFrame("全局热键监听示例");
frame.setContentPane(panel);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setVisible(true);