java awt 截图

public static void main(String[] args) { 
        try { 
            int width = (int)Toolkit.getDefaultToolkit().getScreenSize().getWidth(); 
            int height = (int)Toolkit.getDefaultToolkit().getScreenSize().getHeight(); 
            Robot robot = new Robot(); 
            BufferedImage image = robot.createScreenCapture(new Rectangle(width,height)); 
            ImageIO.write (image, "png" , new File("d:/1.png"));  
             
        } catch (AWTException e) { 
            e.printStackTrace(); 
        } catch (IOException e) { 
            e.printStackTrace(); 
        } 
    }