tede/gx_api/GxPress/Api/GxPress.Api/WebControllers/WxpayController.cs

using System;
using System.Collections.Generic;
using Alipay.AopSdk.Core.Util;
using GxPress.Common.AliPay;
using GxPress.Common.WechatPay;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;

namespace GxPress.Api.WebControllers
{
    [Route("api/web/wxpay")]
    [ApiController]
    [Authorize]
    public class WxpayController : Controller
    {
        [HttpGet()]
        [AllowAnonymous]
        public string GetNativePayUrl()
        {
            var nativePay = new NativePay();
            return nativePay.GetPayUrl("111");
        }
        /// <summary>
        /// 回调地址
        /// </summary>
        [HttpGet("notify")]
        [AllowAnonymous]
        public string Callback()
        {
            /* 实际验证过程建议商户添加以下校验。
             1、商户需要验证该通知数据中的out_trade_no是否为商户系统中创建的订单号，
             2、判断total_amount是否确实为该订单的实际金额（即商户订单创建时的金额），
             3、校验通知中的seller_id（或者seller_email) 是否为out_trade_no这笔单据的对应的操作方（有的时候，一个商户可能有多个seller_id/seller_email）
             4、验证app_id是否为该商户本身。
             */

            Dictionary<string, string> sArray = GetRequestGet();
            //检查openid和product_id是否返回
            if (!sArray.Keys.Equals("openid") || !sArray.Keys.Equals("product_id"))
            {
                WxPayData res = new WxPayData();
                res.SetValue("return_code", "FAIL");
                res.SetValue("return_msg", "回调数据异常");
                return (res.ToXml());
            }

            //调统一下单接口，获得下单结果
            //string openid = notifyData.GetValue("openid").ToString();
            sArray.TryGetValue("openid", out var openid);
            //string product_id = notifyData.GetValue("product_id").ToString();
            sArray.TryGetValue("product_id", out var product_id);
            WxPayData unifiedOrderResult = new WxPayData();
            try
            {
                unifiedOrderResult = GxPress.Common.WechatPay.WxPayApi.UnifiedOrder(openid, product_id);
            }
            catch (Exception ex)//若在调统一下单接口时抛异常，立即返回结果给微信支付后台
            {
                WxPayData res = new WxPayData();
                res.SetValue("return_code", "FAIL");
                res.SetValue("return_msg", "统一下单失败");
                return (res.ToXml());
            }

            //若下单失败，则立即返回结果给微信支付后台
            if (!unifiedOrderResult.IsSet("appid") || !unifiedOrderResult.IsSet("mch_id") || !unifiedOrderResult.IsSet("prepay_id"))
            {
                WxPayData res = new WxPayData();
                res.SetValue("return_code", "FAIL");
                res.SetValue("return_msg", "统一下单失败");
                //Log.Error(this.GetType().ToString(), "UnifiedOrder failure : " + res.ToXml());
                return (res.ToXml());
                //page.Response.End();
            }
          
            //统一下单成功,则返回成功结果给微信支付后台
            WxPayData data = new WxPayData();
            data.SetValue("return_code", "SUCCESS");
            data.SetValue("return_msg", "OK");
            data.SetValue("appid", WxPayConfig.GetConfig().GetAppID());
            data.SetValue("mch_id", WxPayConfig.GetConfig().GetMchID());
            data.SetValue("nonce_str", WxPayApi.GenerateNonceStr());
            data.SetValue("prepay_id", unifiedOrderResult.GetValue("prepay_id"));
            data.SetValue("result_code", "SUCCESS");
            data.SetValue("err_code_des", "OK");
            data.SetValue("sign", data.MakeSign());

            // Log.Info(this.GetType().ToString(), "UnifiedOrder success , send data to WeChat : " + data.ToXml());
            return data.ToXml();
        }
        private Dictionary<string, string> GetRequestPost()
        {
            Dictionary<string, string> sArray = new Dictionary<string, string>();

            ICollection<string> requestItem = Request.Form.Keys;
            foreach (var item in requestItem)
            {
                sArray.Add(item, Request.Form[item]);

            }
            return sArray;

        }
        private Dictionary<string, string> GetRequestGet()
        {
            Dictionary<string, string> sArray = new Dictionary<string, string>();

            ICollection<string> requestItem = Request.Query.Keys;
            foreach (var item in requestItem)
            {
                sArray.Add(item, Request.Query[item]);
            }
            return sArray;

        }
    }
}