如何使用Java Swing操作在Netbeans中创建菜单项和工具栏项

如何使用Java Swing操作在Netbeans中创建菜单项和工具栏项,java,swing,netbeans,action,netbeans-7,Java,Swing,Netbeans,Action,Netbeans 7,我正在读一本java书籍,作者使用相同的操作创建菜单项和工具栏项。 我如何使用NetBeans实现这一点? 代码如下: public class ActionInterfaceDemo extends JFrame{ private JPanel buttonPanel = new JPanel(); private FlowLayout flowLayout = new FlowLayout(); //---Default constructor p

我正在读一本java书籍,作者使用相同的操作创建菜单项和工具栏项。 我如何使用NetBeans实现这一点? 代码如下:

    public class ActionInterfaceDemo extends JFrame{

    private JPanel buttonPanel = new JPanel();
    private FlowLayout flowLayout = new FlowLayout();

    //---Default constructor
    public ActionInterfaceDemo()
    {
        //Create image icons
        ImageIcon leftImageIcon = new ImageIcon(getClass().getResource("image/leftAlignment.png"));
        ImageIcon centerImageIcon = new ImageIcon(getClass().getResource("image/centerAlignment.png"));
        ImageIcon rightImageIcon = new ImageIcon(getClass().getResource("image/rightAlignment.png"));

        //Create actions
        Action leftAction = new MyAction("Left", leftImageIcon, "Left alignment for the buttons in the panel", new Integer(KeyEvent.VK_L), KeyStroke.getKeyStroke(KeyEvent.VK_L, ActionEvent.CTRL_MASK));
        Action centerAction = new MyAction("Center",centerImageIcon, "Center alignment for the buttons in the panel", new Integer(KeyEvent.VK_C), KeyStroke.getKeyStroke(KeyEvent.VK_C, ActionEvent.CTRL_MASK));
        Action rightAction = new MyAction("Right", rightImageIcon, "Right alignment for the buttons in the panel", new Integer(KeyEvent.VK_R), KeyStroke.getKeyStroke(KeyEvent.VK_R, ActionEvent.CTRL_MASK));

        //Create menus
        JMenuBar jMenuBar1 = new JMenuBar();
        JMenu jmenuAlignment = new JMenu("Alignment");
        setJMenuBar(jMenuBar1);
        jMenuBar1.add(jmenuAlignment);

        //Add actions to the menu
        jmenuAlignment.add(leftAction);
        jmenuAlignment.add(centerAction);
        jmenuAlignment.add(rightAction);

        //Add actions to the toolbar
        JToolBar jToolBar1 = new JToolBar(JToolBar.HORIZONTAL);
        jToolBar1.setBorder(BorderFactory.createLineBorder(Color.red));
        jToolBar1.add(leftAction);
        jToolBar1.add(centerAction);
        jToolBar1.add(rightAction);

        //Add buttons to the button panel
        buttonPanel.setLayout(flowLayout);
        JButton jbtLeft = new JButton(leftAction);
        JButton jbtCenter = new JButton(centerAction);
        JButton jbtRight = new JButton(rightAction);
        buttonPanel.add(jbtLeft);
        buttonPanel.add(jbtCenter);
        buttonPanel.add(jbtRight);

        //Add toolbar to the east and panel to the center
        add(jToolBar1, BorderLayout.NORTH);
        add(buttonPanel, BorderLayout.CENTER);
    }


    //inner class MyAction
    private class MyAction extends AbstractAction
    {
        String name;

        MyAction(String name, Icon icon)
        {
            super(name, icon);
            this.name = name;
        }

        MyAction(String name, Icon icon, String desc, Integer mnemonic, KeyStroke accelerator)
        {
            super(name,icon);
            putValue(Action.SHORT_DESCRIPTION, desc);
            putValue(Action.MNEMONIC_KEY, mnemonic);
            putValue(Action.ACCELERATOR_KEY, accelerator);
            this.name = name;
        }

        @Override
        public void actionPerformed(ActionEvent e) {
            if (name.equals("Left"))
                flowLayout.setAlignment(FlowLayout.LEFT);
            else if (name.equals("Center"))
                flowLayout.setAlignment(FlowLayout.CENTER);
            else if (name.equals("Right"))
                flowLayout.setAlignment(FlowLayout.RIGHT);

            buttonPanel.revalidate();
        }
    }


    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
        ActionInterfaceDemo frame = new ActionInterfaceDemo();
        frame.setLocationRelativeTo(null);  //Center the frame
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setTitle("ActionInterfaceDemo");
        //frame.pack();
        frame.setSize(new Dimension(600, 200));
        frame.setVisible(true);
    }
}

谢谢。

两个
JMenuItem
JButton
都有一个
setAction()
方法,可以用来设置
操作的相同实例
JMenuItem
JButton
都有一个
setAction()
方法,可用于设置
操作的相同实例

相同操作是什么意思?我的意思是,在JMenu和JToolBar的构造函数中使用相同的操作,使用它们的add方法。我正在尝试将代码手动添加到我创建的Netbeans JForm中。我相信如果您知道自己在做什么的话,这没有问题。你说的相同操作是什么意思?我的意思是在JMenu和JToolBar的构造函数中使用相同的操作,使用它们的add方法。我现在正在尝试手动将代码添加到我创建的Netbeans JForm中。我相信如果你知道你在做什么,这没有问题。我决定用构造函数手工编码。我在预览或设计模式下看不到结果,但在运行项目时可以看到。我决定用构造函数手工编码。我在预览或设计模式下看不到结果,但在运行项目时可以看到结果。