无法在Apache POI中按word文档（docx）的顺序读取所有内容

Question

我一直试图阅读word文档中的所有内容（包括表格、图片、段落）。我可以使用getBodyElementsIterator（）阅读表格和段落，但它无法阅读文档中的图片。虽然我可以使用getAllPictures（）单独阅读图片，但我需要按顺序阅读所有内容。

我尝试在getBodyElementsIterator（）内循环时查找XWPFPicture实例，但找不到任何图像实例。

Iterator<IBodyElement> iter = xdoc.getBodyElementsIterator();
           while (iter.hasNext()) {
               IBodyElement elem = iter.next();
               if (elem instanceof XWPFParagraph) {
                  System.out.println("para - "+elem.getClass());
               } else if (elem instanceof XWPFTable) {
                  System.out.println("table - "+elem);
               } else if (elem instanceof XWPFPictureData){
                  System.out.println("picture - "+elem);
               } else {
                  System.out.println("else - "+elem);
               }  
            }

这是我得到的结果。

paraorg.apache.poi.xwpf.usermodel.XWPFParagraph@4d3167f4
paraorg.apache.poi.xwpf.usermodel.XWPFParagraph@ed9d034
tableorg.apache.poi.xwpf.usermodel.XWPFTable@6121c9d6
paraorg.apache.poi.xwpf.usermodel.XWPFParagraph@87f383f
paraorg.apache.poi.xwpf.usermodel.XWPFParagraph@4eb7f003

它包含段落和表格，但不包含任何图片

Answer 1

正如评论中已经告诉的那样，如何按照apache poi中的word文档（docx）的顺序读取所有内容的问题过于宽泛，无法在这里回答。*. docx是Office Open XML文件格式的ZIP存档。它包含文档正文的document.xml。这是需要遍历的非常复杂的XML。但该document.xml可能包含对*. docxZIP存档中其他资源的引用，然后也需要遍历。

我可以提供的是这个遍历过程的模板。它从XWPFDocument开始，首先遍历其中的所有IBodyElements。根据找到的IBodyElement类型，它会进一步遍历进程。

import java.io.FileInputStream;

import org.apache.poi.xwpf.usermodel.*;

import java.util.List;

public class WordReadAllContent {

 static void traversePictures(List<XWPFPicture> pictures) throws Exception {
  for (XWPFPicture picture : pictures) {
   System.out.println(picture);
   XWPFPictureData pictureData = picture.getPictureData();
   System.out.println(pictureData);
  }
 }

 static void traverseRunElements(List<IRunElement> runElements) throws Exception {
  for (IRunElement runElement : runElements) {
   if (runElement instanceof XWPFFieldRun) {
    XWPFFieldRun fieldRun = (XWPFFieldRun)runElement;
    System.out.println(fieldRun.getClass().getName());
    System.out.println(fieldRun);
    traversePictures(fieldRun.getEmbeddedPictures());
   } else if (runElement instanceof XWPFHyperlinkRun) {
    XWPFHyperlinkRun hyperlinkRun = (XWPFHyperlinkRun)runElement;
    System.out.println(hyperlinkRun.getClass().getName());
    System.out.println(hyperlinkRun);
    traversePictures(hyperlinkRun.getEmbeddedPictures());
   } else if (runElement instanceof XWPFRun) {
    XWPFRun run = (XWPFRun)runElement;
    System.out.println(run.getClass().getName());
    System.out.println(run);
    traversePictures(run.getEmbeddedPictures());
   } else if (runElement instanceof XWPFSDT) {
    XWPFSDT sDT = (XWPFSDT)runElement;
    System.out.println(sDT);
    System.out.println(sDT.getContent());
    //ToDo: The SDT may have traversable content too.
   }
  }
 }

 static void traverseTableCells(List<ICell> tableICells) throws Exception {
  for (ICell tableICell : tableICells) {
   if (tableICell instanceof XWPFSDTCell) {
    XWPFSDTCell sDTCell = (XWPFSDTCell)tableICell;
    System.out.println(sDTCell);
    //ToDo: The SDTCell may have traversable content too.
   } else if (tableICell instanceof XWPFTableCell) {
    XWPFTableCell tableCell = (XWPFTableCell)tableICell;
    System.out.println(tableCell);
    traverseBodyElements(tableCell.getBodyElements());
   }
  }
 }

 static void traverseTableRows(List<XWPFTableRow> tableRows) throws Exception {
  for (XWPFTableRow tableRow : tableRows) {
   System.out.println(tableRow);
   traverseTableCells(tableRow.getTableICells());
  }
 }

 static void traverseBodyElements(List<IBodyElement> bodyElements) throws Exception {
  for (IBodyElement bodyElement : bodyElements) {
   if (bodyElement instanceof XWPFParagraph) {
    XWPFParagraph paragraph = (XWPFParagraph)bodyElement;
    System.out.println(paragraph);
    traverseRunElements(paragraph.getIRuns());
   } else if (bodyElement instanceof XWPFSDT) {
    XWPFSDT sDT = (XWPFSDT)bodyElement;
    System.out.println(sDT);
    System.out.println(sDT.getContent());
    //ToDo: The SDT may have traversable content too.
   } else if (bodyElement instanceof XWPFTable) {
    XWPFTable table = (XWPFTable)bodyElement;
    System.out.println(table);
    traverseTableRows(table.getRows());
   }
  }
 }

 public static void main(String[] args) throws Exception {

  String inFilePath = "./WordDocument.docx";

  XWPFDocument document = new XWPFDocument(new FileInputStream(inFilePath));
  traverseBodyElements(document.getBodyElements());

  document.close();
 }

}

这是一份工作草案。我肯定，我忘了什么。