java中鼠标右击弹出菜单怎么实现

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java中鼠标右击弹出菜单怎么实现15

请各位帮帮忙，最好有实例代码，小妹感激不尽！
问题补充：
拜托各位帮帮忙，要在java中实现呢，不知道要怎么写

jQuery

2008年10月30日 17:04

huibao913
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2个答案按时间排序按投票排序

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写成Swing的了，JQuery不会。
sorry，sorry！

2008年11月03日 16:16

firefly.li
271
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添加评论

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Hi，MM，下面是我的代码。你要怎么感激我呀

package main;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

import javax.swing.JFrame;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.JPopupMenu;

public class PopupDemo extends JFrame {

	private static final long serialVersionUID = 1L;

	private JPopupMenu popup = null;
	private JPanel panel = null;
	

	public PopupDemo() {
		initGUI();
	}
	
	private void initGUI() {
		this.setTitle("PopupDemo");
		this.add(this.getPanel(), BorderLayout.CENTER);
		this.setDefaultCloseOperation(EXIT_ON_CLOSE);
		this.setLocation(300, 300);
		this.setSize(300, 200);
		this.setVisible(true);
	}
	
	private JPanel getPanel() {
		if(panel == null) {
			panel = new JPanel();
			panel.setSize(300, 200);
			panel.setBackground(Color.GRAY);
			panel.addMouseListener(new MouseAdapter() {
				public void mouseClicked(MouseEvent e) {
					if(e.getButton() == MouseEvent.BUTTON3) {
						getPopup().show(e.getComponent(),
		                           e.getX(), e.getY());
					}
				}
			});
		}
		return panel;
	}
	
	private JPopupMenu getPopup() {
		if(popup == null) {
			popup = new JPopupMenu("Popup");

			JMenuItem item1  = new JMenuItem("Blue");
			item1.addActionListener(new ActionListener() {
				public void actionPerformed(ActionEvent e) {
					panel.setBackground(Color.BLUE);
				}
			});
			popup.add(item1);

			JMenuItem item2  = new JMenuItem("Red");
			item2.addActionListener(new ActionListener() {
				public void actionPerformed(ActionEvent e) {
					panel.setBackground(Color.RED);
				}
			});
			popup.add(item2);

			JMenuItem item3  = new JMenuItem("Default");
			item3.addActionListener(new ActionListener() {
				public void actionPerformed(ActionEvent e) {
					panel.setBackground(Color.GRAY);
				}
			});
			popup.add(item3);
			
			popup.setInvoker(panel);
		}
		return popup;
	}

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

2008年10月31日 15:01

firefly.li
271
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