Get Image from the document using Apache POI

问题:

I am using Apache Poi to read images from docx.

Here is my code:

enter code here

public Image ReadImg(int imageid) throws IOException {
    XWPFDocument doc = new XWPFDocument(new FileInputStream("import.docx"));
    BufferedImage jpg = null;
    List<XWPFPictureData> pic = doc.getAllPictures();
    XWPFPictureData pict = pic.get(imageid);
    String extract = pict.suggestFileExtension();
    byte[] data = pict.getData();
    //try to read image data using javax.imageio.* (JDK 1.4+)
    jpg = ImageIO.read(new ByteArrayInputStream(data));
    return jpg;
}

It reads images properly but not in order wise.

For example, if document contains

image1.jpeg image2.jpeg image3.jpeg image4.jpeg image5.jpeg

It reads

image4 image3 image1 image5 image2

Could you please help me to resolve it?

I want to read the images order wise.

Thanks, Sithik

回答1:

public static void extractImages(XWPFDocument docx) {
    try {

        List<XWPFPictureData> piclist = docx.getAllPictures();
        // traverse through the list and write each image to a file
        Iterator<XWPFPictureData> iterator = piclist.iterator();
        int i = 0;
        while (iterator.hasNext()) {
            XWPFPictureData pic = iterator.next();
            byte[] bytepic = pic.getData();
            BufferedImage imag = ImageIO.read(new ByteArrayInputStream(bytepic));
            ImageIO.write(imag, "jpg", new File("D:/imagefromword/" + pic.getFileName()));
            i++;
        }

    } catch (Exception e) {
        System.exit(-1);
    }

}