使用Apache POI从文档中获取图像
问题描述：
我正在使用Apache Poi从docx中读取图像.
I am using Apache Poi to read images from docx.
这是我的代码:
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;
}
它可以正确读取图像，但顺序不正确.
It reads images properly but not in order wise.
例如，如果文档包含
image1.jpeg image2.jpeg image3.jpeg image4.jpeg image5.jpeg
image1.jpeg image2.jpeg image3.jpeg image4.jpeg image5.jpeg
它显示为
image4 image3 图片1 图片5 image2
image4 image3 image1 image5 image2
您能帮我解决吗?
我想按顺序阅读图像.
谢谢， 西西克
答
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);
}
}