public ThirdPartyMessageHandler(Stream inputStream, PostModel postModel = null)
        {
            _postModel = postModel;
            EcryptRequestDocument = XmlUtility.XmlUtility.Convert(inputStream);//原始加密XML转成XDocument

            Init();
        }
        public ThirdPartyMessageHandler(XDocument ecryptRequestDocument, PostModel postModel = null)
        {
            _postModel = postModel;
            EcryptRequestDocument = ecryptRequestDocument;//原始加密XML转成XDocument

            Init();
        }
        //<?xml version="1.0" encoding="utf-8"?>
        //<xml>
        //  <ToUserName><![CDATA[gh_a96a4a619366]]></ToUserName>
        //  <FromUserName><![CDATA[olPjZjsXuQPJoV0HlruZkNzKc91E]]></FromUserName>
        //  <CreateTime>1357986928</CreateTime>
        //  <MsgType><![CDATA[text]]></MsgType>
        //  <Content><![CDATA[中文]]></Content>
        //  <MsgId>5832509444155992350</MsgId>
        //</xml>
        /// <summary>
        /// 获取XDocument转换后的IRequestMessageBase实例。
        /// 如果MsgType不存在,抛出UnknownRequestMsgTypeException异常
        /// </summary>
        /// <returns></returns>
        public static IRequestMessageBase GetRequestEntity(XDocument doc, PostModel postModel = null)
        {
            RequestMessageBase requestMessage = null;
            RequestInfoType infoType;

            try
            {
                infoType = InfoTypeHelper.GetRequestInfoType(doc);
                switch (infoType)
                {
                    case RequestInfoType.component_verify_ticket:
                        requestMessage = new RequestMessageComponentVerifyTicket();
                        break;
                    case RequestInfoType.unauthorized:
                        requestMessage = new RequestMessageUnauthorized();
                        break;
                    default:
                        throw new UnknownRequestMsgTypeException(string.Format("InfoType:{0} 在RequestMessageFactory中没有对应的处理程序!", infoType), new ArgumentOutOfRangeException());//为了能够对类型变动最大程度容错(如微信目前还可以对公众账号suscribe等未知类型,但API没有开放),建议在使用的时候catch这个异常
                }
                EntityHelper.FillEntityWithXml(requestMessage, doc);
            }
            catch (ArgumentException ex)
            {
                throw new WeiXinException(string.Format("RequestMessage转换出错!可能是InfoType不存在!,XML:{0}", doc.ToString()), ex);
            }
            return requestMessage;
        }
 public CustomThirdPartyMessageHandler(Stream inputStream, PostModel encryptPostModel)
     : base(inputStream, encryptPostModel)
 {
 }