通过 Apache POI 将自定义（扩展）属性添加到 docx 和段落

Question

我想使用 Apache POI 将文件从 *.fidus (Fidus Writer) 平台转换为 *.docx 格式，反之亦然。

在 *.fidus 文件中有一些我需要将它们作为扩展或自定义属性存储在 *.docx 文件中的属性，然后当我想将其转换回 *.fidus 时我可以检索它们。

因此我想知道如何使用 POI 的 class CustomProperties 或类似的东西将一些属性添加到 docx 文件。是否可以使用 POI 将自定义属性（扩展属性）添加到 docx 文件中的段落？

提前致谢。

Answer 1

由于*.docx文档是基于XML的，我们必须使用POIXMLProperties.CustomProperties，参见http://poi.apache.org/apidocs/org/apache/poi/POIXMLProperties.CustomProperties.html。

示例：

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

import org.openxmlformats.schemas.officeDocument.x2006.customProperties.CTProperty;

import java.util.GregorianCalendar;

public class DocumentProperties {

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

  XWPFDocument document = new XWPFDocument(new FileInputStream("This is a Test.docx"));

  POIXMLProperties properties = document.getProperties();
  //http://poi.apache.org/apidocs/org/apache/poi/POIXMLProperties.html

  //prints the core property Creator:
  System.out.println(properties.getCoreProperties().getCreator());

  //prints the extendend property Application:
  System.out.println(properties.getExtendedProperties().getApplication());

  //sets a custom property
  POIXMLProperties.CustomProperties customproperties = properties.getCustomProperties();
  if (!customproperties.contains("Test")) {
   customproperties.addProperty("Test", 123);
  }
  CTProperty ctproperty = customproperties.getProperty("Test");
  System.out.println(ctproperty);
  System.out.println(ctproperty.getI4());

  //the above customproperties.addProperty() can only set boolean, double, integer or string properties
  //the CTProperty contains more possibitities
  if (!customproperties.contains("Test Date")) {
   customproperties.addProperty("Test Date", 0);
   ctproperty = customproperties.getProperty("Test Date");
   ctproperty.unsetI4();
   ctproperty.setFiletime(new GregorianCalendar(2016,1,13));
  }
  ctproperty = customproperties.getProperty("Test Date");
  System.out.println(ctproperty);
  System.out.println(ctproperty.getFiletime());


  FileOutputStream out = new FileOutputStream(new File("This is a Test.docx"));
  document.write(out);
 }
}

POIXMLProperties.CustomProperties.addProperty()只能设置boolean、double、integer或string属性，但底层CTProperty包含更多可能性。

CTProperty 参见 http://grepcode.com/file/repo1.maven.org/maven2/org.apache.poi/ooxml-schemas/1.1/org/openxmlformats/schemas/officeDocument/x2006/customProperties/CTProperty.java#CTProperty。

通过 Apache POI 将自定义（扩展）属性添加到 docx 和段落

Add custom (extended) properties to docx and paragraphs by Apache POI

java

apache-poi

xwpf