java中鼠标右击弹出菜单怎样实现

java中鼠标右击弹出菜单怎样实现

简单的实现代码如下：

import java.awt.MenuBar;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

import javax.swing.JFrame;
import javax.swing.JPopupMenu;


public class Demo {
public static void main(String[] args) {
final JFrame jf = new JFrame("窗体");
jf.setSize(300, 300);
jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
jf.setLocationRelativeTo(null);
// 创建弹出菜单
final JPopupMenu jp = new JPopupMenu();
jp.add("红色");
jp.add("蓝色");
jf.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
if (e.getButton() == MouseEvent.BUTTON3) {
// 弹出菜单
jp.show(jf, e.getX(), e.getY());
}
}
});
jf.setVisible(true);
}
}

简单的实现代码如下： import java.awt.menubar; import java.awt.event.mouseadapter; import java.awt.event.mouseevent; import javax.swing.jframe; import javax.swing.jpopupmenu; public class demo { public static void main(string[] args) { final jframe jf = new jframe("窗体"); jf.setsize(300, 300); jf.setdefaultcloseoperation(jframe.exit_on_close); jf.setlocationrelativeto(null); // 创建弹出菜单 final jpopupmenu jp = new jpopupmenu(); jp.add("红色"); jp.add("蓝色"); jf.addmouselistener(new mouseadapter() { @override public void mouseclicked(mouseevent e) { if (e.getbutton() == mouseevent.button3) { // 弹出菜单 jp.show(jf, e.getx(), e.gety()); } } }); jf.setvisible(true); } }