code: public static Map<String, Object> toMap(String xml){
          xml = xml.replaceAll("(\\r|\\n)", "");
          if (Strings.isNullOrEmpty(xml)){
              return Collections.emptyMap();
          }
          XmlReaders readers = XmlReaders.create(xml);
          return toMap(readers);
      }
docs: 转换微信XML为Map(仅支持2级)
  @param xml xml内容
  @return Map对象