java关闭键盘,Java Swing - 如何通过敲击键盘上的“enter”关闭JDialog

import java.awt.Dimension;

import java.awt.event.ActionEvent;

import java.awt.event.KeyEvent;

import javax.swing.AbstractAction;

import javax.swing.ActionMap;

import javax.swing.Box;

import javax.swing.InputMap;

import javax.swing.JDialog;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.KeyStroke;

public class Main {

public static void main(String[] args) {

JFrame frame = new JFrame("Frame");

frame.add(Box.createRigidArea(new Dimension(400, 300)));

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.pack();

frame.setVisible(true);

JDialog dialog = new JDialog(frame, "Dialog", true);

int condition = JPanel.WHEN_IN_FOCUSED_WINDOW;

InputMap inputMap = ((JPanel) dialog.getContentPane())

.getInputMap(condition);

ActionMap actionMap = ((JPanel) dialog.getContentPane()).getActionMap();

String enter = "enter";

inputMap.put(KeyStroke.getKeyStroke(KeyEvent.VK_ENTER, 0), enter);

actionMap.put(enter, new AbstractAction() {

@Override

public void actionPerformed(ActionEvent e) {

dialog.dispose();

}

});

dialog.add(Box.createRigidArea(new Dimension(200, 200)));

dialog.pack();

dialog.setLocationRelativeTo(frame);

dialog.setVisible(true);

}

}