首次推送

Mtxfw.Utility/WXPay.NativeNotify.cs

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+using System;
+using System.Collections.Generic;
+using System.Web;
+using System.Web.UI;
+using System.Web.UI.WebControls;
+
+namespace Mtxfw.Utility
+{
+    /// <summary>
+    /// 扫码支付模式一回调处理类
+    /// 接收微信支付后台发送的扫码结果，调用统一下单接口并将下单结果返回给微信支付后台
+    /// </summary>
+    public class NativeNotify:wxNotify
+    {
+        public NativeNotify(Page page):base(page)
+        {
+
+        }
+
+        public override void ProcessNotify(Mtxfw.Utility.Config config)
+        {
+            WxPayData notifyData = GetNotifyData(config);
+
+            //检查openid和product_id是否返回
+            if (!notifyData.IsSet("openid") || !notifyData.IsSet("product_id"))
+            {
+                WxPayData res = new WxPayData();
+                res.SetValue("return_code", "FAIL");
+                res.SetValue("return_msg", "回调数据异常");
+                Log.Info(this.GetType().ToString(), "The data WeChat post is error : " + res.ToXml());
+                page.Response.Write(res.ToXml());
+                page.Response.End();
+            }
+
+            //调统一下单接口，获得下单结果
+            string openid = notifyData.GetValue("openid").ToString();
+            string product_id = notifyData.GetValue("product_id").ToString();
+            WxPayData unifiedOrderResult = new WxPayData();
+            try
+            {
+                unifiedOrderResult = UnifiedOrder(config, 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");
+                Log.Error(this.GetType().ToString(), "UnifiedOrder failure : " + res.ToXml());
+                page.Response.Write(res.ToXml());
+                page.Response.End();
+            }
+
+            //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());
+                page.Response.Write(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", config.webappKey);
+            data.SetValue("mch_id", config.webappSecret);
+            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(config));
+
+            Log.Info(this.GetType().ToString(), "UnifiedOrder success , send data to WeChat : " + data.ToXml());
+            page.Response.Write(data.ToXml());
+            page.Response.End();
+        }
+
+        private WxPayData UnifiedOrder(Mtxfw.Utility.Config config, string openId, string productId)
+        {
+            //统一下单
+            WxPayData req = new WxPayData();
+            req.SetValue("body", "test");
+            req.SetValue("attach", "test");
+            req.SetValue("out_trade_no", WxPayApi.GenerateOutTradeNo(config));
+            req.SetValue("total_fee", 1);
+            req.SetValue("time_start", DateTime.Now.ToString("yyyyMMddHHmmss"));
+            req.SetValue("time_expire", DateTime.Now.AddMinutes(10).ToString("yyyyMMddHHmmss"));
+            req.SetValue("goods_tag", "test");
+            req.SetValue("trade_type", "NATIVE");
+            req.SetValue("openid", openId);
+            req.SetValue("product_id", productId);
+            WxPayData result = WxPayApi.UnifiedOrder(config, req);
+            return result;
+        }
+    }
+}