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4.9 KiB

using System;
using System.Collections.Generic;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.IO;
namespace WxPayAPI
{
/// <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 : Notify
{
public NativeNotify(Page page)
: base(page)
{
}
public override void ProcessNotify()
{
WriteLog("不错");
WxPayData notifyData = GetNotifyData();
//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(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", WxPayConfig.APPID);
data.SetValue("mch_id", WxPayConfig.MCHID);
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());
page.Response.Write(data.ToXml());
page.Response.End();
}
private WxPayData UnifiedOrder(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());
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(req);
return result;
}
/// <summary>
/// 写入日志
/// </summary>
/// <param name="readme"></param>
public void WriteLog(string readme)
{
string _Date = System.DateTime.Now.Date.ToString("yyyy-MM-dd");
StreamWriter dout = new StreamWriter(@"D:/wwwroot/wxpay.ivhua.com/logs/" + _Date + ".txt", true);
dout.Write("事件:" + readme + " 操作时间:" + System.DateTime.Now.ToString("yyy-MM-dd HH:mm:ss"));
dout.Write(System.Environment.NewLine); //换行
dout.Close();
}
}
}