builder=Thumbnails.of(imagePath);BufferedImagewatermarkImg=ImageIO.read(watermark);FilenewWatermark=null;//原图的宽或高是水印图片宽或高的2倍及以上,则直接打上水印原图;否则缩略水印图片,以原图宽或高的二分之一if(bi.getWidth()/watermarkImg.getWidth()<=2||bi.getHeight()/watermarkImg.getHeight()<=2){newWatermark=genNewWatermark(watermarkPath,bi.getWidth()/2,bi.getHeight()/2);watermarkImg=ImageIO.read(newWatermark);}builder.size(bi.getWidth(),bi.getHeight());if(bi.getType()==BufferedImage.TYPE_BYTE_INDEXED){builder.imageType(BufferedImage.TYPE_INT_ARGB);}if(posinstanceofCoordinate){serialWatermark(builder,bi,watermarkImg);}else{builder.watermark(pos,watermarkImg,Float.valueOf(PropertyUtil.get("watermarkOpacity")));//watermark(位置，水印图，透明度)}StringnewImagePath=generateNewFilePath(imagePath);builder.outputQuality(Float.valueOf(PropertyUtil.get("watermarkQuality"))).toFile(newImagePath);//保存水印图的质量0-1if(newWatermark!=null){newWatermark.delete();}returnnewImagePath;}catch(Exceptione){logger.error("水印图片出错",e);returnnull;}}else{logger.error("图片或者水印不存在");returnnull;}}else{logger.error("图片或者水印参数为null");returnnull;}}-IMDN开发者社群-imdn.cn"> builder=Thumbnails.of(imagePath);BufferedImagewatermarkImg=ImageIO.read(watermark);FilenewWatermark=null;//原图的宽或高是水印图片宽或高的2倍及以上,则直接打上水印原图;否则缩略水印图片,以原图宽或高的二分之一if(bi.getWidth()/watermarkImg.getWidth()<=2||bi.getHeight()/watermarkImg.getHeight()<=2){newWatermark=genNewWatermark(watermarkPath,bi.getWidth()/2,bi.getHeight()/2);watermarkImg=ImageIO.read(newWatermark);}builder.size(bi.getWidth(),bi.getHeight());if(bi.getType()==BufferedImage.TYPE_BYTE_INDEXED){builder.imageType(BufferedImage.TYPE_INT_ARGB);}if(posinstanceofCoordinate){serialWatermark(builder,bi,watermarkImg);}else{builder.watermark(pos,watermarkImg,Float.valueOf(PropertyUtil.get("watermarkOpacity")));//watermark(位置，水印图，透明度)}StringnewImagePath=generateNewFilePath(imagePath);builder.outputQuality(Float.valueOf(PropertyUtil.get("watermarkQuality"))).toFile(newImagePath);//保存水印图的质量0-1if(newWatermark!=null){newWatermark.delete();}returnnewImagePath;}catch(Exceptione){logger.error("水印图片出错",e);returnnull;}}else{logger.error("图片或者水印不存在");returnnull;}}else{logger.error("图片或者水印参数为null");returnnull;}} - IMDN开发者社群-imdn.cn">

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java 为图片添加水印示例

于 2017-10-13 发布

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为图片添加水印【核心代码】 /*** 添加水印* @param imagePath 图片绝对路径* @param watermarkPath 水印图片绝对路径* @param position 水印图片位置* @return 生成水印图片的绝对路径*/public static String addWatermark(String imagePath, String watermarkPath, String position) {logger.info("为图片({})在位置{}添加水印({})", imagePath, position, watermarkPath);if (StringUtils.isNotBlank(imagePath) && StringUtils.isNotBlank(watermarkPath)) {File image = new File(imagePath);File watermark = new File(watermarkPath);Position pos = getPostion(position);if (image.isFile() && image.exists() && watermark.isFile()) {try {BufferedImage bi = ImageIO.read(image);Builder builder = Thumbnails.of(imagePath);BufferedImage watermarkImg = ImageIO.read(watermark);File newWatermark = null;// 原图的宽或高是水印图片宽或高的2倍及以上,则直接打上水印原图;否则缩略水印图片,以原图宽或高的二分之一if (bi.getWidth() / watermarkImg.getWidth()

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