如何使用apache poi向word文档添加自定义项目符号

XWPFDocument document = new XWPFDocument();

XWPFNumbering numbering = document.createNumbering();
BigInteger numId = BigInteger.valueOf(1); // 自定义项目符号的编号
CTAbstractNum abstractNum = CTAbstractNum.Factory.newInstance();
CTDecimalNumber decimalNumber = CTDecimalNumber.Factory.newInstance();
decimalNumber.setVal(BigInteger.valueOf(25)); // 自定义项目符号的Unicode编码
abstractNum.setAbstractNumId(numId);
abstractNum.setLvlArray(new ArrayList<CTLvl>());
CTLvl level = abstractNum.addNewLvl();
level.setIlvl(BigInteger.ZERO);
level.setNumFmt(CTNumFmt.Factory.newInstance());
level.getNumFmt().setVal(STNumberFormat.BULLET);
level.getLvlText().addNewVal().setStringValue("自定义项目符号");
level.setStart(BigInteger.ONE);
XWPFAbstractNum abs = new XWPFAbstractNum(abstractNum);
XWPFNumbering.AbstractNum abstractNumElement = numbering.addAbstractNum(abs);
numId = numbering.addNum(abstractNumElement.getAbstractNum().getAbstractNumId());

XWPFParagraph paragraph = document.createParagraph();
paragraph.setNumID(numId);
paragraph.setText("这是一个带有自定义项目符号的段落。");

FileOutputStream out = new FileOutputStream("path/to/word/document.docx");
document.write(out);
out.close();