@Override
 public NotifyResult process(Element root) {
   Element requestHeader = root.element("Header");
   serialNo = XmlUtils.getChildElementContent(requestHeader, "SerialNo");
   String memcached_key = "shholiday_notify_" + serialNo;
   if ("true".equals(MemcachedUtil.getInstance().get(memcached_key))) {
     result.setSuccess(header); // 直接正常返回
   } else {
     Element body = root.element(bodyElementTag);
     handle(body);
     result.setSuccess(header);
     if (header.isSuccess()) {
       MemcachedUtil.getInstance().set(memcached_key, "true");
     }
   }
   return result;
 }
 protected void addParam(String key, Object value) {
   result.addParam(key, value);
 }