Java Keylistener未响应numlock编号

我正在制作一个键侦听器，它可以侦听ctrl-1和ctrl-2

我正在为团队做一个测验。第一组如果想回答，应按ctrl-1键。第2组如果想回答，应按ctrl-2键

我选择ctrl的原因是因为有两个控制键。因此，两支球队可以在一个键盘上相互对抗

我希望第1组使用左控件和F1-F12下的数字。 第二组使用正确的控件和numlock上的数字

我的代码注册团队1的触发器，但不注册团队2的触发器。 这是我的密码：

        public void keyPressed(KeyEvent e) {
            if((QuizController)getController() != null){
                if(e.getKeyCode () == KeyEvent.VK_1){
                    if((e.getModifiers() & KeyEvent.CTRL_MASK) != 0)
                        System.out.println("Team 1");
                }
                if(e.getKeyCode () == KeyEvent.VK_2){
                    if((e.getModifiers() & KeyEvent.CTRL_MASK) != 0)
                        System.out.println("Team 2");
                }
            }

        }

编辑：我只是用键绑定做的，给出了同样的问题，下面是代码

AbstractAction team1 = new AbstractAction() {
        public void actionPerformed(ActionEvent arg0) {
            System.out.println("Team 1");

        }
    };

AbstractAction team2 = new AbstractAction() {

        @Override
        public void actionPerformed(ActionEvent arg0) {
            System.out.println("Team 2");

        }
    };

    getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_1, java.awt.event.InputEvent.CTRL_DOWN_MASK),"actionMap1");
    getActionMap().put("actionMap1", team1);

    getInputMap().put(KeyStroke.getKeyStroke(KeyEvent.VK_2, java.awt.event.InputEvent.CTRL_DOWN_MASK),"actionMap2");
    getActionMap().put("actionMap2", team2);

---

谢谢大家!

首先，我强烈建议使用

第二个

KeyEvent.VK_1

不是为numpad+1引发的同一事件，它是由

KeyEvent.VK_NUMPAD1

触发的。相反，它是一个不同的关键事件，就像功能键是raise

KeyEvent.VK_F1

到

12

事件一样

例如

import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.GridBagLayout;
import java.awt.event.ActionEvent;
import java.awt.event.KeyEvent;
import javax.swing.AbstractAction;
import javax.swing.ActionMap;
import javax.swing.InputMap;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.KeyStroke;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;

public class KeyBindingsTest {

    public static void main(String[] args) {
        new KeyBindingsTest();
    }

    public KeyBindingsTest() {
        EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                try {
                    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
                } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
                    ex.printStackTrace();
                }

                JFrame frame = new JFrame("Testing");
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                frame.add(new TestPane());
                frame.pack();
                frame.setLocationRelativeTo(null);
                frame.setVisible(true);
            }
        });
    }

    public class TestPane extends JPanel {

        private JLabel state;

        public TestPane() {
            setLayout(new GridBagLayout());
            state = new JLabel("Nothing here");
            add(state);

            InputMap im = getInputMap(WHEN_IN_FOCUSED_WINDOW);
            im.put(KeyStroke.getKeyStroke(KeyEvent.VK_1, KeyEvent.CTRL_DOWN_MASK), "Ctrl+1");
            im.put(KeyStroke.getKeyStroke(KeyEvent.VK_2, KeyEvent.CTRL_DOWN_MASK), "Ctrl+2");
            im.put(KeyStroke.getKeyStroke(KeyEvent.VK_NUMPAD1, KeyEvent.CTRL_DOWN_MASK), "Ctrl+1");
            im.put(KeyStroke.getKeyStroke(KeyEvent.VK_NUMPAD2, KeyEvent.CTRL_DOWN_MASK), "Ctrl+2");

            ActionMap am = getActionMap();
            am.put("Ctrl+1", new MessageAction("Ctrl+1"));
            am.put("Ctrl+2", new MessageAction("Ctrl+2"));
        }

        @Override
        public Dimension getPreferredSize() {
            return new Dimension(200, 200);
        }

        public class MessageAction extends AbstractAction {

            private String message;

            public MessageAction(String message) {
                this.message = message;
            }

            @Override
            public void actionPerformed(ActionEvent e) {
                state.setText(message);
            }

        }

    }

}

---

请输入KeyEvent.VK_1和&KeyEvent.CTRL_掩码？？？编辑if（code==KeyEvent.VK_1&&modifiers==KeyEvent.CTRL_MASK）{通过使用KeyBindings instaead of KeyListener应该很容易。您是否测试了1或2单独（没有CTRL）是否工作？如何处理KeyBindings，我不太理解教程…我将其放入JPanel的构造函数中：setFocusable（true）；