java中怎么截屏，保存为文件或字节数组中

Question

java.awt.Robot
createScreenCapture
public BufferedImage createScreenCapture(Rectangle screenRect)
Creates an image containing pixels read from the screen. Parameters:
screenRect - Rect to capture in screen coordinates 
Returns:
The captured image 
Throws: 
IllegalArgumentException - if screenRect width and height are not greater than zero 
SecurityException - if readDisplayPixels permission is not granted
See Also:
SecurityManager.checkPermission(java.security.Permission), AWTPermission

Answer 1

Toolkit toolkit = Toolkit.getDefaultToolkit(); 
                        Dimension screenSize = toolkit.getScreenSize(); 
                        Rectangle screenRect = new Rectangle(screenSize);                         try {
File fileout = new File(docroot.getPath() + "/screen.jpg"); if (fileout.exists()) {
fileout.delete();
}                            Robot robot = new Robot(); 
                            BufferedImage image = robot.createScreenCapture(screenRect); 
                            ImageIO.write(image, "jpg", fileout); 
                        } 
                        catch(AWTException e) { 
                            System.err.println(e.toString()); 
                        } 
                        catch(IOException e) { 
                            System.err.println(e.toString()); 
                        }