更新XWPFParagraph的使用Apache POI文 [英] Updating the text of a XWPFParagraph using Apache POI

问题描述

我已经在文档中能够遍历所有的段落，并在文本和得到的一切，我已阅读并理解了如何从头开始创建一个文档。但我怎么能更新和替换段落中的文字？我可以做 createRun 段落，但将只是它创建一个新的一段文字。

I have been able to loop through all paragraphs in a document and get at the text and everything and I have read and understood how you can create a document from scratch. But how can I update and replace the text in a paragraph? I can do createRun in a paragraph but that will just create a new piece of text in it.

 ...
 FileInputStream fis = new FileInputStream("Muu.docx");
 XWPFDocument myDoc = new XWPFDocument(fis);
 XWPFParagraph[] myParas = myDoc.getParagraphs();
 ...

我的理论是，我需要在我想改变，或者删除该段，并重新添加）段现有的运行，但我不能找到方法来做到这一点。

My theory is that I need to get at the existing "run" in the paragraph I want to change, or delete the paragraph and add it again) but I cannot find methods to do that.

推荐答案

您不能在XWPFParagraph直接更改文本。一个XWPFParagraph是由一个或多个XWPFRun实例。这些提供了设置文本的方式。

You can't change the text on a XWPFParagraph directly. A XWPFParagraph is made up of one or more XWPFRun instances. These provide the way to set the text.

要更改文本，你的code会想是这样的：

To change the text, your code would want to be something like:

public void changeText(XWPFParagraph p, String newText) {
   List<XWPFRun> runs = p.getRuns();
   for(int i = runs.size() - 1; i > 0; i--) {
      p.removeRun(i);
   }
   XWPFRun run = runs.get(0);
   run.setText(newText, 0);
}

这将确保你只有一个文本串（第一个），并将取代所有文字是你提供了什么。

That will ensure you only have one text run (the first one), and will replace all the text to be what you provided.

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