package org.platform.framework.commons.util;import java.awt.AlphaComposite;import java.awt.Color;import java.awt.Font;import java.awt.Graphics2D;import java.awt.Image;import java.awt.RenderingHints;import java.awt.image.BufferedImage;import java.io.File;import java.io.FileOutputStream;import java.io.InputStream;import java.io.OutputStream;import javax.imageio.ImageIO;import javax.swing.ImageIcon;import com.founder.cms.watermark.util.ImageMarkLogoUtil;/** *  * 生成水印 *  */public class ImageMarkUtil { /** 水印透明度 */ private static float alpha = 0.5f; /** 水印圖片旋轉角度 */ private static double degree = 0f; private static int interval = 0; /** * 設置水印參數，不設置就使用默認值 *  * @param alpha *   水印透明度 * @param degree *   水印圖片旋轉角度 * * @param interval *   水印圖片間隔 */ public static void setImageMarkOptions(float alpha, int degree, int interval) { if (alpha != 0.0f) { ImageMarkUtil.alpha = alpha; } if (degree != 0f) { ImageMarkUtil.degree = degree; } if (interval != 0f) { ImageMarkUtil.interval = interval; } } /** * 給圖片添加水印圖片 *  * @param waterImgPath *   水印圖片路徑 * @param srcImgPath *   源圖片路徑 * @param targerPath *   目標圖片路徑 */ public static void waterMarkByImg(String waterImgPath, String srcImgPath, String targerPath) throws Exception { waterMarkByImg(waterImgPath, srcImgPath, targerPath, 0); } /** * 給圖片添加水印圖片 *  * @param waterImgPath *   水印圖片路徑 * @param srcImgPath *   源圖片路徑 * @param targerPath *   目標圖片路徑 */ public static void waterMarkByImg(String waterImgPath, String srcImgPath) { try { waterMarkByImg(waterImgPath, srcImgPath, srcImgPath, 0); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } /** * 給圖片添加水印圖片、可設置水印圖片旋轉角度 *  * @param waterImgPath *   水印圖片路徑 * @param srcImgPath *   源圖片路徑 * @param targerPath *   目標圖片路徑 * @param degree *   水印圖片旋轉角度 */ public static void waterMarkByImg(String waterImgPath, String srcImgPath, String targerPath, double degree) throws Exception { OutputStream os = null; try { Image srcImg = ImageIO.read(new File(srcImgPath)); BufferedImage buffImg = new BufferedImage(srcImg.getWidth(null),  srcImg.getHeight(null), BufferedImage.TYPE_INT_RGB); // 1、得到畫筆對象 Graphics2D g = buffImg.createGraphics(); // 2、設置對線段的鋸齒狀邊緣處理 g.setRenderingHint(RenderingHints.KEY_INTERPOLATION,  RenderingHints.VALUE_INTERPOLATION_BILINEAR); g.drawImage(srcImg.getScaledInstance(srcImg.getWidth(null), srcImg  .getHeight(null), Image.SCALE_SMOOTH), 0, 0, null); // 3、設置水印旋轉 if (0 != degree) { g.rotate(Math.toRadians(degree),  (double) buffImg.getWidth() / 2, (double) buffImg  .getHeight() / 2); } // 4、水印圖片的路徑 水印圖片一般為gif或者png的，這樣可設置透明度 ImageIcon imgIcon = new ImageIcon(waterImgPath); // 5、得到Image對象。 Image img = imgIcon.getImage(); g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_ATOP,  alpha)); // 6、水印圖片的位置 for (int height = interval + imgIcon.getIconHeight(); height < buffImg  .getHeight(); height = height +interval+ imgIcon.getIconHeight()) { for (int weight = interval + imgIcon.getIconWidth(); weight < buffImg  .getWidth(); weight = weight +interval+ imgIcon.getIconWidth()) {  g.drawImage(img, weight - imgIcon.getIconWidth(), height  - imgIcon.getIconHeight(), null); } } g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER)); // 7、釋放資源 g.dispose(); // 8、生成圖片 os = new FileOutputStream(targerPath); ImageIO.write(buffImg, "JPG", os); System.out.println("圖片完成添加水印圖片"); } catch (Exception e) { e.printStackTrace(); } finally { try { if (null != os)  os.close(); } catch (Exception e) { e.printStackTrace(); } } } public static void main(String[] args) { System.out.println("..添加水印圖片開始..."); /** * watermarkPath 水印圖片地址 uploadPath 上傳成功后文件地址 */ //修改默認參數 //ImageMarkUtil.setImageMarkOptions(0.0f, 0, 20); //ImageMarkUtil.waterMarkByImg(watermarkPath, uploadPath); System.out.println("..添加水印圖片結束..."); }}

 /** * watermarkPath 水印圖片地址 * uploadPath 上傳成功后文件地址 */ ImageMarkUtil.waterMarkByImg(watermarkPath, uploadPath);如果你覺得水印間隔太近了，可以通過下面代碼設置間隔：//修改默認參數 ImageMarkUtil.setImageMarkOptions(0.0f, 0, 20); ImageMarkUtil.waterMarkByImg(watermarkPath, uploadPath);