Alipay.AopSdk.Core3.1

 Alipay.Config  -->>AlipayConfig.cs

        public static string alipay_public_key = "";

        //开发者私钥
        public static string merchant_private_key = "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";

        //开发者公钥
        public static string merchant_public_key = "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDIgHnOn7LLILlKETd6BFRJ0GqgS2Y3mn1wMQmyh9zEyWlz5p1zrahRahbXAfCfSqshSNfqOmAQzSHRVjCqjsAw1jyqrXaPdKBmr90DIpIxmIyKXv4GGAkPyJ/6FTFY99uhpiq0qadD/uSzQsefWo0aTvP/65zi3eof7TcZ32oWpwIDAQAB";
        //应用ID
        public static string appId = "2013092500031084";

        //支付宝网关
        public static string serverUrl = "https://openapi.alipaydev.com/gateway.do";

        public async Task<JsonResult> OrderCloses(string tradeno, string alipayTradeNo)
        {
            /*DefaultAopClient client = new DefaultAopClient(Config.Gatewayurl, Config.AppId, Config.PrivateKey, "json", "2.0",
       Config.SignType, Config.AlipayPublicKey, Config.CharSet, false);*/

            AlipayTradeCloseModel model = new AlipayTradeCloseModel();
            model.OutTradeNo = tradeno;
            model.TradeNo = alipayTradeNo;

            AlipayTradeCloseRequest request = new AlipayTradeCloseRequest();
            request.SetBizModel(model);

            var response = await Configs.client.ExecuteAsync(request);
            return Json(response.Body);
        }

 [HttpPost]
        public void PayRequest(string tradeno, string subject, string totalAmout, string itemBody)
        {
            // 组装业务参数model
            AlipayTradePagePayModel model = new AlipayTradePagePayModel();
            model.Body = itemBody;
            model.Subject = subject;
            model.TotalAmount = totalAmount;
            model.OutTradeNo = tradeno;
            model.ProductCode = "FAST_INSTANT_TRADE_PAY";

            AlipayTradePagePayRequest request = new AlipayTradePagePayRequest();
            // 设置同步回调地址
            request.SetReturnUrl("https://localhost:44396/waplay/callback");
            //// 设置异步通知接收地址
            //request.SetNotifyUrl("");
            // 将业务model载入到request
            request.SetBizModel(model);

            var response = Configs.client.SdkExecute(request);
            Console.WriteLine($"订单支付发起成功，订单号：{tradeno}");
            //跳转支付宝支付
            Response.Redirect(AlipayConfig.serverUrl + "?" + response.Body);
        }