MyFrame ：

設(shè)計思路：

1、創(chuàng)建JPopup右鍵菜單對象；

2、添加內(nèi)容面板JPanel；

3、創(chuàng)建一個自定義的右鍵菜單項目鍵，包括圖片+名字+事件；

4、將菜單項添加到右鍵菜單；

5、添加面板事件處理：當(dāng)右鍵點(diǎn)擊面板時，出現(xiàn)右鍵菜單；

6、創(chuàng)建一個監(jiān)聽器，用于表示點(diǎn)擊菜單項操作；

package swing01;import java.awt.BorderLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; import java.net.URL;import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JPopupMenu; import javax.swing.JToolBar;public class MyFrame extends JFrame {//彈出式菜單JPopupMenu popup=new JPopupMenu();public MyFrame(String title){super(title);//內(nèi)容面板JPanel root=new JPanel();this.setContentPane(root);root.setLayout(new BorderLayout());//右鍵菜單popup.add( createMenuItem("ic_open.png", "fileOpen","打開"));popup.add( createMenuItem("ic_save.png", "fileSave","保存"));popup.add( createMenuItem("ic_saveas.png","fileSaveAs","另存為"));popup.addSeparator();popup.add( createMenuItem("ic_help.png", "fileHelp","幫助"));//添加鼠標(biāo)響應(yīng)事件，當(dāng)點(diǎn)擊右鍵時，彈出菜單root.addMouseListener(new MouseAdapter() {@Overridepublic void mouseClicked(MouseEvent e) {// TODO Auto-generated method stubsuper.mouseClicked(e);if(e.getButton()==MouseEvent.BUTTON3){popup.show(e.getComponent(), e.getX(), e.getY());}}});}protected JMenuItem createMenuItem(String iceName,String action,String text){JMenuItem item=new JMenuItem(text);item.setActionCommand(action);item.addActionListener(actionListener);if(iceName!=null){String imagePath="/images/"+iceName;URL imageURL=getClass().getResource(imagePath);item.setIcon(new ImageIcon(imageURL));}return item;}//創(chuàng)建一個監(jiān)聽器//注意：actionListener是類的屬性private ActionListener actionListener=new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {// TODO Auto-generated method stubString action=e.getActionCommand();System.out.println("執(zhí)行命令："+action);//當(dāng)是打開命令時，再彈出一個窗口if(action.equals("fileOpen")){JOptionPane.showMessageDialog(MyFrame.this, action);}}};}

main

package swing01;import java.awt.Container; import java.awt.FlowLayout;import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel;public class MyDemo {private static void createGUI(){// JFrame指一個窗口，構(gòu)造方法的參數(shù)為窗口標(biāo)題JFrame frame = new MyFrame("Swing Demo");frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);// 設(shè)置窗口的其他參數(shù)，如窗口大小frame.setSize(400, 300);// 顯示窗口frame.setVisible(true);}public static void main(String[] args){javax.swing.SwingUtilities.invokeLater(new Runnable() {public void run(){createGUI();}});} }

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