code: public static boolean WriteXml(ExcelConfig dlExcel, String xmlPath) throws Exception {
          //写入xml
          return XmlUtil.toXml(dlExcel, new File(xmlPath));
      }
docs: 写入到xml文件
  
  @param dlExcel 配置对象
  @param xmlPath xml保存路径
  @return true成功，false失败
  @throws Exception