Exemple #1
0
        /**
         * 刷卡支付完整业务流程逻辑
         * @param body 商品描述
         * @param total_fee 总金额
         * @param auth_code 支付授权码
         * @throws WxPayException
         * @return 刷卡支付结果
         */
        public static string Run(string body, string total_fee, string auth_code)
        {
            Log.Info("MicroPay", "Micropay is processing...");

            WxPayData data = new WxPayData();

            data.SetValue("auth_code", auth_code);                        //授权码
            data.SetValue("body", body);                                  //商品描述
            data.SetValue("total_fee", int.Parse(total_fee));             //总金额
            data.SetValue("out_trade_no", WxPayApi.GenerateOutTradeNo()); //产生随机的商户订单号

            WxPayData result = WxPayApi.Micropay(data, 10);               //提交被扫支付,接收返回结果

            //如果提交被扫支付接口调用失败,则抛异常
            if (!result.IsSet("return_code") || result.GetValue("return_code").ToString() == "FAIL")
            {
                string returnMsg = result.IsSet("return_msg") ? result.GetValue("return_msg").ToString() : "";
                Log.Error("MicroPay", "Micropay API interface call failure, result : " + result.ToXml());
                throw new WxPayException("Micropay API interface call failure, return_msg : " + returnMsg);
            }

            //签名验证
            result.CheckSign();
            Log.Debug("MicroPay", "Micropay response check sign success");

            //刷卡支付直接成功
            if (result.GetValue("return_code").ToString() == "SUCCESS" &&
                result.GetValue("result_code").ToString() == "SUCCESS")
            {
                Log.Debug("MicroPay", "Micropay business success, result : " + result.ToXml());
                return(result.ToPrintStr());
            }

            /******************************************************************
            * 剩下的都是接口调用成功,业务失败的情况
            * ****************************************************************/
            //1)业务结果明确失败
            if (result.GetValue("err_code").ToString() != "USERPAYING" &&
                result.GetValue("err_code").ToString() != "SYSTEMERROR")
            {
                Log.Error("MicroPay", "micropay API interface call success, business failure, result : " + result.ToXml());
                return(result.ToPrintStr());
            }

            //2)不能确定是否失败,需查单
            //用商户订单号去查单
            string out_trade_no = data.GetValue("out_trade_no").ToString();

            //确认支付是否成功,每隔一段时间查询一次订单,共查询10次
            int queryTimes = 10;        //查询次数计数器

            while (queryTimes-- > 0)
            {
                int       succResult  = 0;     //查询结果
                WxPayData queryResult = Query(out_trade_no, out succResult);
                //如果需要继续查询,则等待2s后继续
                if (succResult == 2)
                {
                    Thread.Sleep(2000);
                    continue;
                }
                //查询成功,返回订单查询接口返回的数据
                else if (succResult == 1)
                {
                    Log.Debug("MicroPay", "Mircopay success, return order query result : " + queryResult.ToXml());
                    return(queryResult.ToPrintStr());
                }
                //订单交易失败,直接返回刷卡支付接口返回的结果,失败原因会在err_code中描述
                else
                {
                    Log.Error("MicroPay", "Micropay failure, return micropay result : " + result.ToXml());
                    return(result.ToPrintStr());
                }
            }

            //确认失败,则撤销订单
            Log.Error("MicroPay", "Micropay failure, Reverse order is processing...");
            if (!Cancel(out_trade_no))
            {
                Log.Error("MicroPay", "Reverse order failure");
                throw new WxPayException("Reverse order failure!");
            }

            return(result.ToPrintStr());
        }