java提取docx文件中的图片

使用的maven为：

<dependency>
     <groupId>org.apache.poi</groupId>
     <artifactId>poi</artifactId>
     <version>3.17</version>
</dependency>

1. 获取docx文件中的所有图片

//  获取word中的所有图片
  public static void readImageInParagraph() throws IOException {

    XWPFDocument document = new XWPFDocument(new FileInputStream("C:\\Users\\Administrator\\Desktop\\JP6-0-2006.docx"));
    // 用XWPFDocument的getAllPictures来获取所有的图片
    List<XWPFPictureData> picList = document.getAllPictures();
    for (XWPFPictureData pic : picList) {
      System.out.println(pic.getPictureType() +  pic.getFileName());
      byte[] bytev = pic.getData();
//                System.out.println(bytev.length);
      // 大于1000bites的图片我们才弄下来，消除word中莫名的小图片的影响
      if (bytev.length > 300) {
        FileOutputStream fos = new FileOutputStream("C:\\Users\\Administrator\\Desktop\\cc\\" + pic.getFileName());
        fos.write(bytev);
      }
    }
  }

2. 根据docx的内容，获取每段内容对应的图片

 public static List<String> readImageInParagraphTest() throws IOException {  //XWPFParagraph paragraph
    InputStream is = new FileInputStream("C:\\Users\\Administrator\\Desktop\\JP6-0-2006.docx");
    XWPFDocument doc = new XWPFDocument(is);
    List<XWPFParagraph> paras = doc.getParagraphs(); //将得到包含段落列表
    List<String> picArr = new ArrayList<>();
    for (XWPFParagraph paragraph : paras) {
      List<XWPFRun> runs = paragraph.getRuns();
      for (XWPFRun run : runs) {
        List<XWPFPicture> pictures = run.getEmbeddedPictures();
//        System.out.println(pictures);
        if (!pictures.isEmpty()) {
          for (XWPFPicture picture : pictures) {
            // 将图片下载到本地，
            //      XWPFPicture picture = pictures.get(0);
            XWPFPictureData pictureData = picture.getPictureData();
//          System.out.println(pictureData.getPictureType());
            byte[] bytev = pictureData.getData();

            // 大于1000bites的图片我们才弄下来，消除word中莫名的小图片的影响
            if (bytev.length > 20) {
//              String fileName = "../../../../resources/static/picture/" + pictureData.getFileName();
              String fileName = "D:\\programming\\fileex\\src\\main\\resources\\static\\picture\\" + pictureData.getFileName();
              FileOutputStream fos = new FileOutputStream(fileName);
              fos.write(bytev);
              String pic_string = "/picture/" + pictureData.getFileName();
              picArr.add(pic_string);
              System.out.println(pic_string);  //获取指定大小的图片
            }
          }
        }
      }
    }
    return picArr;
  }