aspose words做插入压缩后图片到Word文档中

最近用aspose words做导出Word的功能，发现图片的导出有点难受，一开始是这样写的

 Document doc = new Document("D:\\Template.docx");
 List<Map<String, Object>> dataList = new ArrayList<Map<String, Object>>();
  
 String imagePath = "D:\\employees.jpg";
 //读取一个二进制图片 
 FileInputStream fis = new FileInputStream(imagePath);
 byte[] image = new byte[fis.available()];
 fis.read(image);
 fis.close();
 record.put("PhotoBLOB", image);

 dataList.add(record);

这样写没错，就是待会会因为图片的大小而把表格撑开

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就是这样，所以，我们需要把图片压缩到我们想要的结果后再导出来

 String a = Global.getConfig("vfs.pr") + MapUtils.getString(map, "NEWFILESPATH");
 File f = new File(a);
 String newjpg = Global.getConfig("vfs.pr") + System.currentTimeMillis() + "." + f.getName().substring(f.getName().lastIndexOf(".") + 1);
 FileOutputStream out = new FileOutputStream(newjpg);
 thumbnail(f, out);//压缩图片的函数
 out.close();
 FileInputStream fileInputStream = new FileInputStream(newjpg);
 byte[] image = new byte[fileInputStream.available()];
 fileInputStream.read(image);
 fileInputStream.close();
 record.put("FILESPATH", image);

  /**
      * 按照固定宽高原图压缩
      *
      * @param img
      * @param out
      * @throws IOException
      */
     public static void thumbnail(File img, OutputStream out) throws IOException {
         BufferedImage BI = ImageIO.read(img);
         int width = 95;
         int height = 65;
         //文件后缀名
         String a = img.getName().substring(img.getName().lastIndexOf(".") + 1);
         Image image = BI.getScaledInstance(width, height, Image.SCALE_SMOOTH);
         BufferedImage tag = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
         Graphics g = tag.getGraphics();
         g.drawImage(image, 0, 0, null); // 绘制处理后的图
         g.dispose();
         ImageIO.write(tag, a, out);
     }

这样图片就会按照95， 65的场合宽压缩出来了，不过到这里需要注意的是，在这里图片后缀是jpg压缩出来顶多一般就是失真问题，png就不一样了，是直接黑底的。

所以我需要再添加对png图片的处理

  /**
      * 按照固定宽高原图压缩
      *
      * @param img
      * @param out
      * @throws IOException
      */
     public static void thumbnail(File img, OutputStream out) throws IOException {
         BufferedImage BI = ImageIO.read(img);
         int width = 95;
         int height = 65;
         //文件后缀名
         String a = img.getName().substring(img.getName().lastIndexOf(".") + 1);
         if (a.equalsIgnoreCase("jpg")) {
             Image image = BI.getScaledInstance(width, height, Image.SCALE_SMOOTH);
             BufferedImage tag = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
             Graphics g = tag.getGraphics();
             g.drawImage(image, 0, 0, null); // 绘制处理后的图
             g.dispose();
             ImageIO.write(tag, a, out);
         }
         //对png的读取压缩
         else if (a.equalsIgnoreCase("png")) {
             BufferedImage tag = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
             Graphics2D g2d = tag.createGraphics();
             tag = g2d.getDeviceConfiguration().createCompatibleImage(width, height, Transparency.TRANSLUCENT);
             g2d.dispose();
             g2d = tag.createGraphics();
             Image image = BI.getScaledInstance(width, height, BI.SCALE_AREA_AVERAGING);
             g2d.drawImage(image, 0, 0, null); // 绘制处理后的图
             g2d.dispose();
             ImageIO.write(tag, a, out);
         }
     }

这样就可以了

我前面有发过对aspose word导出word的简单介绍，可以结合这个和那篇一起了解。

简单介绍aspose-words-18.10-jdk16做导出word ，链接：

https://www.cnblogs.com/a874699615/p/10161842.html

csdn博客链接：

https://blog.csdn.net/qq_32003379/article/details/85255127