using System; using System.Threading.Tasks; using System.Web.UI; using WayneCloud.Models.Models; namespace Wechat.PayAPI { /// /// 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 /// public class NativeNotify:Notify { public NativeNotify(Page page):base(page) { } public override async Task ProcessNotify(WxPayConfig config) { 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 { //Abby unifiedOrderResult = await UnifiedOrder(openid, product_id, null); } 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.APPID); data.SetValue("mch_id", config.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"); //Abby data.SetValue("sign", data.MakeSign(null)); Log.Info(this.GetType().ToString(), "UnifiedOrder success , send data to WeChat : " + data.ToXml()); page.Response.Write(data.ToXml()); page.Response.End(); } private async Task UnifiedOrder(string openId,string productId, WxPayConfig config) { //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 = await WxPayApi.UnifiedOrder(req, config); return result; } } }