【微信支付踩坑记02】v3版支付简单示例

v3版生成订单代码

有好多想说了，后续补充

/// <summary>
        /// Js下单API
        /// </summary>
        /// <returns></returns>
        [HttpPost("pay/v3")]
        public dynamic GetJS([FromBody]ReceiveSelect obj)
        {
            string transactionsResponse = "";
            try
            {
                string dataDir = "URL" + "/apiclient_cert.p12";
              
                X509Certificate2 Certificate = new X509Certificate2(dataDir , mchid, X509KeyStorageFlags.PersistKeySet | X509KeyStorageFlags.MachineKeySet);

                string serialNo = Certificate.SerialNumber;

                TimeSpan ts = DateTime.Now - new DateTime(1970, 1, 1, 0, 0, 0, 0);
                string TheNum = obj.partner_trade_no;

                V3JsPayObj v3Obj = new V3JsPayObj();

                v3Obj.mchid = mchid;
                v3Obj.out_trade_no = TheNum;
                v3Obj.appid = mch_appid;
                v3Obj.description = obj.desc;
                v3Obj.notify_url = WechatUrl + @"/userPay/PayReMessage";//

                V3JsDetail theAmount = new V3JsDetail();
                theAmount.currency = "CNY";　theAmount.total = Convert.ToInt32(Convert.ToDecimal(obj.amount) * 100);

                v3Obj.amount = theAmount;

                Payer ThePayer = new Payer();
                ThePayer.openid = obj.openId;

                v3Obj.payer = ThePayer;
                v3Obj.time_expire = DateTime.Now.ToString("yyyy-MM-ddTHH:mm:ss"+"+08:00");
                v3Obj.attach = "";

                string theJson = JsonConvert.SerializeObject(v3Obj);

                transactionsResponse = postJson("https://api.mch.weixin.qq.com/v3/pay/transactions/jsapi", theJson, privateKey, mchid, serialNo);

                ThePay myObj = JsonConvert.DeserializeObject<ThePay>(transactionsResponse);

                string prepay_id = myObj.prepay_id;

                RaySelect rPay = new RaySelect();
                rPay.prepay_id = prepay_id;
                rPay.appid = mch_appid;
                rPay.mchid = mchid;
                rPay.description = obj.desc;
                rPay.time_expire = v3Obj.time_expire;
                rPay.attach = "";
                rPay.notify_url = v3Obj.notify_url;
                rPay.amount_total = theAmount.total.ToString();
                rPay.amount_currency = "CNY";
                rPay.payer_openid = obj.openId;

                return new MyMessage<dynamic>
                {
                    data = rPay,
                    resultCode = 200,
                    message = "操作成功"
                };
            }
            catch (Exception e)
            {
                return new MyMessage<dynamic>
                {
                    resultCode = 999,
                    message = "操作失败"
                };
            }
        }