tede/gx_api/GxPress/Infrastructure/GxPress.Common/AliPay/PcPay.cs

using System.Threading.Tasks;
using Alipay.AopSdk.Core;
using Alipay.AopSdk.Core.Domain;
using Alipay.AopSdk.Core.Request;
using Newtonsoft.Json;
namespace GxPress.Common.AliPay
{
    public class PcPay
    {
        /// 发起支付请求
        /// </summary>
        /// <param name="tradeno">外部订单号，商户网站订单系统中唯一的订单号</param>
        /// <param name="subject">订单名称</param>
        /// <param name="totalAmout">付款金额</param>
        /// <param name="itemBody">商品描述</param>
        /// <returns></returns>
        public string PayRequest(string tradeno, string subject, string totalAmout, string itemBody)
        {
            DefaultAopClient client = new DefaultAopClient(Config.Gatewayurl, Config.AppId, Config.PrivateKey, "json", "2.0",
                Config.SignType, Config.AlipayPublicKey, Config.CharSet, false);

            // 组装业务参数model
            AlipayTradePagePayModel model = new AlipayTradePagePayModel();
            model.Body = itemBody;
            model.Subject = subject;
            model.TotalAmount = totalAmout;
            model.OutTradeNo = tradeno;
            model.ProductCode = "FAST_INSTANT_TRADE_PAY";

            AlipayTradePagePayRequest request = new AlipayTradePagePayRequest();
            // 设置同步回调地址
            request.SetReturnUrl("http://localhost:5000/Pay/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 = client.SdkExecute(request);
            // Console.WriteLine($"订单支付发起成功，订单号：{tradeno}");
            //跳转支付宝支付
            return (Config.Gatewayurl + "?" + response.Body);
        }

        /// <summary>
        /// 订单退款
        /// </summary>
        /// <param name="tradeno">商户订单号</param>
        /// <param name="alipayTradeNo">支付宝交易号</param>
        /// <param name="refundAmount">退款金额</param>
        /// <param name="refundReason">退款原因</param>
        /// <param name="refundNo">退款单号</param>
        /// <returns></returns>

        public async Task<bool> Refund(string tradeno, string alipayTradeNo, string refundAmount, string refundReason, string refundNo)
        {
            DefaultAopClient client = new DefaultAopClient(Config.Gatewayurl, Config.AppId, Config.PrivateKey, "json", "2.0",
                Config.SignType, Config.AlipayPublicKey, Config.CharSet, false);

            AlipayTradeRefundModel model = new AlipayTradeRefundModel();
            model.OutTradeNo = tradeno;
            model.TradeNo = alipayTradeNo;
            model.RefundAmount = refundAmount;
            model.RefundReason = refundReason;
            model.OutRequestNo = refundNo;

            AlipayTradeRefundRequest request = new AlipayTradeRefundRequest();
            request.SetBizModel(model);
            var response = await client.ExecuteAsync(request);
            var jsonModel = JsonConvert.DeserializeObject<dynamic>(response.Body);
            return true;
        }

        /// <summary>
        /// 关闭订单
        /// </summary>
        /// <param name="tradeno">商户订单号</param>
        /// <param name="alipayTradeNo">支付宝交易号</param>
        /// <returns></returns>
        public async Task<bool> OrderClose(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 client.ExecuteAsync(request);
            var jsonModel = JsonConvert.DeserializeObject<dynamic>(response.Body);
            return true;
        }
    }
}