您可以使用 SwingUtilities convertPointToScreen（）和 convertPointFromScreen（）在屏幕和组件坐标之间进行转换。
$ b

附录：下面是一个简单的示例，我试图了解组件在布局管理器的影响下如何移动和调整大小。

$ b $ public MyPanel（）{
super（new GridLayout（4，4））;
for（int i = 0; i JPanel panel = new JPanel（new GridLayout（））;
panel.add（new CenterLabel（））;
this.add（panel）;



private static void create（）{
JFrame f = new JFrame（）;
f.setDefaultCloseOperation（JFrame.EXIT_ON_CLOSE）;
f.add（new MyPanel（））;
f.pack（）;
f.setVisible（true）;


public static void main（String [] args）{
EventQueue.invokeLater（new Runnable（）{
$ b $ @Override
public void run（）{
create（）;
}
}）;


私有静态类CenterLabel扩展JLabel {

public CenterLabel（）{
this.setHorizo​​ntalAlignment（JLabel.CENTER）;
this.setVerticalAlignment（JLabel.CENTER）;
this.setOpaque（true）;
this.setBackground（Color.lightGray）;
this.setBorder（BorderFactory.createLineBorder（Color.blue））;
this.setPreferredSize（new Dimension（160，100））;
this.addComponentListener（new ComponentAdapter（）{

@Override
public void componentResized（ComponentEvent e）{
int w = e.getComponent（）。getWidth（ ）;
int h = e.getComponent（）。getHeight（）;
CenterLabel.this.setText（[+ w / 2 +\\\┼+ h / 2 +] ）;
}
}）;
}
}
}

This question is related to my previous question How to generate Cartesian Coordinate (x,y) from GridBaglayout?

I have successfully get the coordinate of each pictures, however when I checked the coordinate through (System.out.println) and the placement of the images on the screen, it seems to be wrong. e.g. if on the screen it was obvious that the x point of the first picture is on cell 2 which is on coordinate of 20, but the program shows x=1.

Here is part of the code:

public Grid (){

  setPreferredSize(new Dimension(600,600)); 
  ....
  setLayout(new GridBagLayout());
  GridBagConstraints gc = new GridBagConstraints();
  gc.weightx = 1d; 
  gc.weighty = 1d;
  gc.insets = new Insets(0, 0, 0, 0);//top, left, bottom, and right 
  gc.fill = GridBagConstraints.BOTH; 

  JLabel[][] label = new JLabel[ROWS][COLS];         
  Random rand = new Random();

  // fill the panel with labels
  for (int i=0;i<IMAGES;i++){
    ImageIcon icon = createImageIcon("myPics.jpg");
    int r, c;
    do{   
  //pick random cell which is empty
     r = (int)Math.floor(Math.random() * ROWS);
        c = (int)Math.floor(Math.random() * COLS); 
    } while (label[r][c]!=null);

    //randomly scale the images                
    int x = rand.nextInt(50)+30;
    int y = rand.nextInt(50)+30;                  
    Image image = icon.getImage().getScaledInstance(x,y, Image.SCALE_SMOOTH);
    icon.setImage(image);

    JLabel lbl = new JLabel(icon); // Instantiate GUI components 
    gc.gridx = r;
    gc.gridy = c;         
    add(lbl, gc); //add(component, constraintObj);         
    label[r][c] = lbl; 
}

I checked the coordinate through this code:

Component[] components = getComponents();     
for (Component component : components) {
   System.out.println(component.getBounds());
}

You can use SwingUtilities convertPointToScreen() and convertPointFromScreen() to convert between screen and component coordinates.

Addendum: Here's a simple example I used when trying to understand how components move and resize under the influence of a layout manager.

public class MyPanel extends JPanel {

    public MyPanel() {
        super(new GridLayout(4, 4));
        for (int i = 0; i < 16; i++) {
            JPanel panel = new JPanel(new GridLayout());
            panel.add(new CenterLabel());
            this.add(panel);
        }
    }

    private static void create() {
        JFrame f = new JFrame();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.add(new MyPanel());
        f.pack();
        f.setVisible(true);
    }

    public static void main(String[] args) {
        EventQueue.invokeLater(new Runnable() {

            @Override
            public void run() {
                create();
            }
        });
    }

    private static class CenterLabel extends JLabel {

        public CenterLabel() {
            this.setHorizontalAlignment(JLabel.CENTER);
            this.setVerticalAlignment(JLabel.CENTER);
            this.setOpaque(true);
            this.setBackground(Color.lightGray);
            this.setBorder(BorderFactory.createLineBorder(Color.blue));
            this.setPreferredSize(new Dimension(160, 100));
            this.addComponentListener(new ComponentAdapter() {

                @Override
                public void componentResized(ComponentEvent e) {
                    int w = e.getComponent().getWidth();
                    int h = e.getComponent().getHeight();
                    CenterLabel.this.setText("[" + w/2 + "\u253C" + h/2 + "]");
                }
            });
        }
    }
}