如何以Java实现网页截图技术，根据URL得到网页快照

// 此方法仅适用于JdK1.6及以上版本
		Desktop.getDesktop().browse(
				new URL("http://www.csdn.net/").toURI());
		Robot robot = new Robot();
		//停留10s
		//robot.delay(10000);
		Dimension d = new Dimension(Toolkit.getDefaultToolkit().getScreenSize());
		int width = (int) d.getWidth();
		int height = (int) d.getHeight();
		// 最大化浏览器
		robot.keyRelease(KeyEvent.VK_F11);
		robot.delay(2000);
		Image image = robot.createScreenCapture(new Rectangle(0, 0, width,
				height));
		BufferedImage bi = new BufferedImage(width, height,
				BufferedImage.TYPE_INT_RGB);
		Graphics g = bi.createGraphics();
		g.drawImage(image, 0, 0, width, height, null);
		// 保存图片
		ImageIO.write(bi, "jpg", new File("c:/iteye.com.jpg"));