【CSDN常见问题解答】Swing监听组合键

来源：互联网发布：java面向对象还是过程编辑：程序博客网时间：2024/05/22 02:04

其实监听键盘事件和简单，键盘也就这3个事件keyTyped， keyReleased， keyPressed

下面我们就监听一个CTRL+C组合键好了。

import java.awt.Color;import java.awt.Frame;import java.awt.Panel;import java.awt.TextArea;import java.awt.event.KeyEvent;import java.awt.event.KeyListener;import java.awt.event.WindowAdapter;import java.awt.event.WindowEvent;public class Gui10 extends Panel {public Gui10(String title) {Frame frame = new Frame(title);frame.setSize(200, 400);frame.setLocationRelativeTo(null);frame.setResizable(true);init();frame.add(this);frame.setVisible(true);frame.addWindowListener(new WindowAdapter() {public void windowClosing(WindowEvent e) {System.exit(0);}});}private void init() {final TextArea textArea = new TextArea(10, 20);textArea.setBackground(Color.CYAN);textArea.setText("test");this.add(textArea);textArea.addKeyListener(new KeyListener() {@Overridepublic void keyTyped(KeyEvent e) {}@Overridepublic void keyReleased(KeyEvent e) {System.out.println("arg0.getModifiers()=" + e.getModifiers());System.out.println("arg0.getKeyCode()=" + e.getKeyCode());// CTRL+C按下if (e.getModifiers() == 2 && e.getKeyCode() == 67) {System.out.println("CTRL+C......");}}@Overridepublic void keyPressed(KeyEvent e) {}});}public static void main(String[] args) {new Gui10("demo");}}

直接运行，鼠标点进textarea，按CTRL+C看看应该会打印：

arg0.getModifiers()=2arg0.getKeyCode()=67CTRL+C......arg0.getModifiers()=0arg0.getKeyCode()=17

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