通过java.awt.Robot的createScreenCapture截取屏幕

通过java.awt.Robot的createScreenCapture截取屏幕2011-10-13通过java.awt.Robot的createScreenCapture截屏.

 public static void captureScreen（String fileName） throws Exception {

    Dimension screenSize = Toolkit.getDefaultToolkit（）.getScreenSize（）;
    Rectangle screenRectangle = new Rectangle（screenSize）;
    Robot robot = new Robot（）;
    BufferedImage image = robot.createScreenCapture（screenRectangle）;
    ImageIO.write（image, "png", new File（fileName））;
}