import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

public class AddComponentButton extends JButton
{
    AddComponentButton(String name)
    {
        super(name);
        addListener();
    }

    private void addListener()
    {
        addActionListener(new ActionListener()
            {
                public void actionPerformed(ActionEvent actionEvent)
                {
                    JComponent aa = (JComponent)actionEvent.getSource();
                    JComponent panel = (JComponent)aa.getParent();
                    int pos = find(panel, aa);

                    if (pos != -1)
                    {
                        panel.add(new JLabel("This is a test"), pos + 1);
                        panel.add(new JLabel("This is a test"), pos + 2);
                        panel.add(new JLabel("This is a test"), pos + 3);
                    }
                    panel.validate();
                }

                private int find(JComponent jc, JComponent ijc)
                {
                    Component[] comp = jc.getComponents();

                    // remove old JLabels if any
                    for (int i=0, j=comp.length; i<j; i++)
                    {
                        // here, we have to know what kind of components we want to remove.
                        if (comp instanceof JLabel) jc.remove(comp[i]);
                    }
                    
                    [i]// now find the position for the component ijc
                    comp = jc.getComponents(); // it's been changed, so get it again.
                    for (int i=0, j=comp.length; i<j; i++)
                    {
                        if (comp == ijc) return i;
                    }
                    return -1;
                }
            }
        );
    }

    public static void main(String[] args)
    {
        JFrame frame = new JFrame("Add/remove components");
        frame.setSize(100 , 400);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        JPanel panel = new JPanel();
        panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
        panel.add(new AddComponentButton("Button 1"));
        panel.add(new AddComponentButton("Button 2"));
        panel.add(new AddComponentButton("Button 3"));
        panel.add(new AddComponentButton("Button 4"));
        panel.add(new AddComponentButton("Button 5"));

        frame.getContentPane().add(panel);

        Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
        Dimension frameSize = frame.getSize();
        if (frameSize.height > screenSize.height) frameSize.height = screenSize.height;
        if (frameSize.width > screenSize.width) frameSize.width = screenSize.width;
        frame.setLocation((screenSize.width - frameSize.width) / 2, (screenSize.height - frameSize.height) / 2);

        [i]// don't do this, because it will shrink the frame size to the compact level
        // and thus we won't have the space to expand. Hopefully, this won't cause
        // and any issue since we use a single frame anyway.
        //frame.pack();
        frame.setVisible(true);
    }
}

kite wrote:
这个如何？

kite wrote:
由于附近大小的限制，只上载了源码，不包含测试用的image文件。

kite wrote:
你这是运行错误，不是编译错误，要把你所用的swt.jar所需要的dll放到能找到的地方，如：放到system32目录下，或放到当前目录下，或用－Djava.library.path=[driver]:\xx\xx\来指定。