java获取屏幕上任意点的鼠标坐标

Question

每次鼠标在屏幕上的任何位置移动时，我都会尝试获取鼠标的坐标，然后记录坐标，但我对如何操作有点迷茫

目前，我正在尝试使用鼠标侦听器，那么是否可以在整个屏幕上创建一个透明、可点击、可捕获鼠标事件的覆盖

谢谢你的帮助

Answer 1

将MouseMotionListener与mouseDragged方法一起使用，如：

public void mouseDragged(MouseEvent e) {
    Graphics g = this.getGraphics();
    int x = e.getX(), y = e.getY(); // you have the coordinates
  // if you want to draw a line for example between 2 mouse pos:
    g.drawLine(lastX,lastY,x,y);
    lastX =x;
    lastY =y;
}

Answer 2

你需要遵循以下步骤

步骤：1:implements MouseMotionListener与类的接口

步骤：2:覆盖它的2-方法

1. mouseDragged
2. mouseMoved

步骤：3:将下面的代码放入mouseMoved（…）

here, just for explanation purpose i have taken 2-label which will show current mouse's position.

@Override
    public void mouseMoved(MouseEvent e) {
        String xvalue = new Integer(e.getX()).toString();
        String yvalue = new Integer(e.getY()).toString();
        xlable.setText(xvalue); // here , you can write it into you log
        ylable.setText(yvalue); // here , you can write it into you log
    }

尽我所能，