code: public static void selfRender(XWPFTemplate template) {
  		ObjectUtils.requireNonNull(template, "Template is null, should be setted first.");
  		List<ElementTemplate> elementTemplates = template.getElementTemplates();
  		if (null == elementTemplates || elementTemplates.isEmpty())
  			return;
  		RenderPolicy policy = null;
  		for (ElementTemplate runTemplate : elementTemplates) {
  			LOGGER.debug("Start self-render TemplateName:{}, Sign:{}", runTemplate.getTagName(), runTemplate.getSign());
  			policy = template.getConfig().getDefaultPolicys().get(Character.valueOf('\0'));
  			policy.render(runTemplate, new TextRenderData(runTemplate.getSource()), template);
  		}
  	}
docs: 自我渲染
  
  @param template