/// <summary>
        /// 获取票据
        /// </summary>
        /// <returns>票据</returns>
        public override string GetToken()
        {
            var token = base.GetToken();

            if (string.IsNullOrWhiteSpace(token))
            {
                return(AuthUtil.GetBearerOriginalToken(context.Request.Headers[AuthUtil.AUTH_KEY]));
            }

            return(token);
        }