如何使用docx4j在docx文档中创建样式表？

WordprocessingMLPackage wordMLPackage = WordprocessingMLPackage.createPackage();

StyleDefinitionsPart styleDefinitionsPart = wordMLPackage.getMainDocumentPart().getStyleDefinitionsPart();
Styles styles = styleDefinitionsPart.getJaxbElement();

// 创建新的样式对象
Style style = new Style();
style.setType("paragraph");
style.setStyleId("MyStyle");
styles.getStyle().add(style);

// 设置样式名称
style.setName("MyStyle");

// 设置段落对齐方式为居中
PPr ppr = new PPr();
Jc jc = new Jc();
jc.setVal(JcEnumeration.CENTER);
ppr.setJc(jc);
style.setPPr(ppr);

// 创建一个新的段落对象
P paragraph = new P();
R run = new R();
Text text = new Text();
text.setValue("This is a sample paragraph.");
run.getContent().add(text);
paragraph.getContent().add(run);

// 将样式应用到段落
paragraph.setPPr(new PPr());
paragraph.getPPr().setPStyle(new PStyle());
paragraph.getPPr().getPStyle().setVal("MyStyle");

wordMLPackage.save(new File("path/to/output.docx"));