替换 Apache POI XWPF 中的文本不起作用

问题描述

我目前正在尝试处理上一篇名为 替换 Apache POI XWPF 中的文本.

I'm currently trying to work on the code mentioned on a previous post called Replacing a text in Apache POI XWPF.

我已经尝试了下面的方法并且它有效，但我不知道我是否遗漏了什么.当我运行代码时，文本不会被替换，而是添加到搜索内容的末尾.例如，我创建了一个基本的 word 文档并输入了文本test".在下面的代码中，当我运行它时，我最终得到了带有文本testDOG"的新文档.

I have tried the below and it works but I don't know if I am missing anything. When I run the code the text is not replaced but added onto the end of what was searched. For example I have created a basic word document and entered the text "test". In the below code when I run it I eventually get the new document with the text "testDOG".

我不得不将原始代码从 String text = r.getText(0) 更改为 String text = r.toString()，因为我在运行代码时不断收到 NullError.

I have had to change the original code from String text = r.getText(0) to String text = r.toString() because I kept getting a NullError while running the code.

import java.io.*;
import org.apache.poi.openxml4j.opc.OPCPackage;
import org.apache.poi.xwpf.extractor.XWPFWordExtractor;
import org.apache.poi.xwpf.usermodel.XWPFDocument;
import org.apache.poi.xwpf.usermodel.XWPFParagraph;
import org.apache.poi.xwpf.usermodel.XWPFRun;


public class testPOI {

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

    String filepath = "F:\\MASTER_DOC.docx";
    String outpath = "F:\\Test.docx";

    XWPFDocument doc = new XWPFDocument(OPCPackage.open(filepath));
    for (XWPFParagraph p : doc.getParagraphs()){
        for (XWPFRun r : p.getRuns()){
            String text = r.toString();
            if(text.contains("test")) {
                text = text.replace("test", "DOG");
                r.setText(text);
            }
        }
    }
   doc.write(new FileOutputStream(outpath));
}

感谢大家的帮助.我浏览了一下，在 Replace table column value in Apache 上找到了一个解决方案兴趣点

Thanks for your help everyone. I browsed around and found a solution on Replace table column value in Apache POI

推荐答案

此方法替换段落中的搜索字符串，并且能够处理跨越多个 Run 的字符串.

This method replace search Strings in paragraphs and is able to work with Strings spanning over more than one Run.

  private long replaceInParagraphs(Map<String, String> replacements, List<XWPFParagraph> xwpfParagraphs) {
    long count = 0;
    for (XWPFParagraph paragraph : xwpfParagraphs) {
      List<XWPFRun> runs = paragraph.getRuns();

      for (Map.Entry<String, String> replPair : replacements.entrySet()) {
        String find = replPair.getKey();
        String repl = replPair.getValue();
        TextSegement found = paragraph.searchText(find, new PositionInParagraph());
        if ( found != null ) {
          count++;
          if ( found.getBeginRun() == found.getEndRun() ) {
            // whole search string is in one Run
            XWPFRun run = runs.get(found.getBeginRun());
            String runText = run.getText(run.getTextPosition());
            String replaced = runText.replace(find, repl);
            run.setText(replaced, 0);
          } else {
            // The search string spans over more than one Run
            // Put the Strings together
            StringBuilder b = new StringBuilder();
            for (int runPos = found.getBeginRun(); runPos <= found.getEndRun(); runPos++) {
              XWPFRun run = runs.get(runPos);
              b.append(run.getText(run.getTextPosition()));
            }
            String connectedRuns = b.toString();
            String replaced = connectedRuns.replace(find, repl);

            // The first Run receives the replaced String of all connected Runs
            XWPFRun partOne = runs.get(found.getBeginRun());
            partOne.setText(replaced, 0);
            // Removing the text in the other Runs.
            for (int runPos = found.getBeginRun()+1; runPos <= found.getEndRun(); runPos++) {
              XWPFRun partNext = runs.get(runPos);
              partNext.setText("", 0);
            }
          }
        }
      }
    }
    return count;
  }

这篇关于替换 Apache POI XWPF 中的文本不起作用的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！