java给图片加水印代码

try {

			String targetImg = "D:/Blue hills.jpg";

//			String pressImg = "D:/20130311220300.jpg";

			String pressImg = "D:/html_original.jpg";

			

			File f1 = new File(targetImg);

			Image src = ImageIO.read(f1);

			int width = src.getWidth(null);

			int height = src.getHeight(null);

			

			BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB); 

			Graphics g =  image.createGraphics();

			g.drawImage(src, 0, 0, width, height, null);

			

			File f2 = new File(pressImg);

			Image src_pao = ImageIO.read(f2);

			int width_pao = src_pao.getWidth(null);

			int height_pao = src_pao.getHeight(null);

			g.drawImage(src_pao, (width-+width_pao)/2, (height-height_pao)/2,width_pao,height_pao, null);

//			g.drawImage(src_pao, 100, 100,width,height, null);

			

			g.dispose();

			FileOutputStream out = new FileOutputStream(targetImg);

			JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);

			encoder.encode(image);

			out.close();

			System.out.println("水印添加成功!!");

			

		} catch (Exception e) {

			// TODO: handle exception

			System.out.println("水印添加失败!!");

			e.printStackTrace();

		}