public ActionResult AppConsume(string txnAmt, string orderDesc)
        {
            LogerHelper.DefaultInfo(Request.ToString());
            Dictionary <string, string> param = new Dictionary <string, string>();
            // 随机构造一个订单号(演示用)
            Random rnd     = new Random();
            string orderID = DateTime.Now.ToString("yyyyMMddHHmmss") + (rnd.Next(900) + 100).ToString().Trim();

            //填写参数

            param["version"]      = "5.0.0";                                                 //版本号
            param["encoding"]     = "UTF-8";                                                 //编码方式
            param["certId"]       = CertUtil.GetSignCertId();                                //证书ID
            param["txnType"]      = "01";                                                    //交易类型
            param["txnSubType"]   = "01";                                                    //交易子类
            param["bizType"]      = "000201";                                                //业务类型
            param["frontUrl"]     = "http://localhost:8080/demo/utf8/FrontRcvResponse.aspx"; //前台通知地址 ,控件接入方式无作用
            param["backUrl"]      = "http://weixin.mandelaauto.com/Pay/CupComplete";         //后台通知地址
            param["signMethod"]   = "01";                                                    //签名方法
            param["channelType"]  = "08";                                                    //渠道类型,07-PC,08-手机
            param["accessType"]   = "0";                                                     //接入类型
            param["merId"]        = Properties.getHost();                                    //商户号,请改成自己的商户号
            param["orderId"]      = orderID;                                                 //商户订单号
            param["txnTime"]      = DateTime.Now.ToString("yyyyMMddHHmmss");                 //订单发送时间
            param["txnAmt"]       = txnAmt;                                                  //交易金额,单位分
            param["currencyCode"] = "156";                                                   //交易币种
            param["orderDesc"]    = orderDesc;                                               //订单描述,可不上送,上送时控件中会显示该信息
            param["reqReserved"]  = "透传信息";                                                  //请求方保留域,透传字段,查询、通知、对账文件中均会原样出现
            SDKUtil.Sign(param, Encoding.UTF8);                                              // 签名
            Response.Write("\n" + "请求报文=[" + SDKUtil.PrintDictionaryToString(param) + "]\n");

            // 初始化通信处理类
            HttpClient hc = new HttpClient(SDKConfig.AppRequestUrl);
            //// 发送请求获取通信应答
            int status = hc.Send(param, Encoding.UTF8);
            // 返回结果
            string result = hc.Result;

            if (status == 200)
            {
                Response.Write("返回报文=[" + result + "]\n");
                LogerHelper.DefaultInfo(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss ") + result);
                Dictionary <string, string> resData = SDKUtil.CoverstringToDictionary(result);
                foreach (var x in resData.Keys)
                {
                    LogerHelper.DefaultInfo(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss ") + x);
                }
                string respcode = resData["respCode"];
                if (SDKUtil.Validate(resData, Encoding.UTF8))
                {
                    Response.Write("商户端验证返回报文签名成功\n");
                }
                else
                {
                    Response.Write("商户端验证返回报文签名失败\n");
                }
            }
            else
            {
                Response.Write("请求失败\n");
                Response.Write("返回报文=[" + result + "]\n");
            }
            return(Content("success"));
        }