using System; using System.Security.Cryptography.X509Certificates; using System.Threading; using System.Threading.Tasks; using WayneCloud.Models.Models; using WayneCloud.Models; namespace Wechat.PayAPI { public class MicroPay { public static NLog.Logger Logger = NLog.LogManager.LoadConfiguration("nlog.xml").GetLogger("Main"); /** * 刷卡支付完整业务流程逻辑 * @param body 商品描述 * @param total_fee 总金额 * @param bill_number 商户订单号 * @param auth_code 支付授权码 * @param trade_status 支付授权码 * @throws WxPayException * @return 刷卡支付结果 */ public static async Task Run(ElectronicOrderModel order) { //string body, string total_fee, string bill_number, string auth_code //set the default trade_status to PAYERROR order.TradeStatus = TradeStatus.PAYERROR; WxPayData data = new WxPayData(); data.SetValue("auth_code", order.AuthCode);//授权码 data.SetValue("body", order.Title);//商品描述 data.SetValue("total_fee", Convert.ToInt32(order.NetAmount * 100));//总金额 data.SetValue("out_trade_no", order.BillNumber);//商户订单号 WxPayData result = await WxPayApi.Micropay(data, (WxPayConfig)order.Config, 20); //提交被扫支付，接收返回结果 //如果提交被扫支付接口调用失败，则抛异常 if (!result.IsSet("return_code") || result.GetValue("return_code").ToString() == "FAIL") { string returnMsg = result.IsSet("return_msg") ? result.GetValue("return_msg").ToString() : ""; Log.Error("MicroPay", "Micropay API interface call failure, result : " + result.ToXml()); throw new WxPayException("Micropay API interface call failure, return_msg : " + returnMsg); } //签名验证 result.CheckSign((WxPayConfig)order.Config); Log.Debug("MicroPay", "Micropay response check sign success"); //刷卡支付直接成功 if(result.GetValue("return_code").ToString() == "SUCCESS" && result.GetValue("result_code").ToString() == "SUCCESS") { Log.Debug("MicroPay", "Micropay business success, result : " + result.ToXml()); order.TradeStatus = TradeStatus.SUCCESS; return result; } /****************************************************************** * 剩下的都是接口调用成功，业务失败的情况 * ****************************************************************/ //1）业务结果明确失败 if(result.GetValue("err_code").ToString() != "USERPAYING" && result.GetValue("err_code").ToString() != "SYSTEMERROR") { Log.Error("MicroPay", "micropay API interface call success, business failure, result : " + result.ToXml()); return result; } //2）不能确定是否失败，需查单 //用商户订单号去查单 string out_trade_no = data.GetValue("out_trade_no").ToString(); //确认支付是否成功,每隔一段时间查询一次订单，共查询10次 int queryTimes = 10;//查询次数计数器 while(queryTimes-- > 0) { WxPayDataWithResult queryResult = await Query(out_trade_no, (WxPayConfig)order.Config); result = queryResult.PayData; //如果需要继续查询，则等待2s后继续 if(queryResult.Status == 2) { await Task.Delay(2000); continue; } //查询成功,返回订单查询接口返回的数据 else if(queryResult.Status == 1) { Log.Debug("MicroPay", "Mircopay success, return order query result : " + queryResult.PayData.ToXml()); order.TradeStatus = TradeStatus.SUCCESS; return queryResult.PayData; } //订单交易失败，直接返回刷卡支付接口返回的结果，失败原因会在err_code中描述 else { Log.Error("MicroPay", "Micropay failure, return micropay result : " + result.ToXml()); //return result; } } return result; ////确认失败，则撤销订单 //Log.Error("MicroPay", "Micropay failure, Reverse order is processing..."); //if(!Cancel(out_trade_no)) //{ // Log.Error("MicroPay", "Reverse order failure"); // throw new WxPayException("Reverse order failure！"); //} } /** * 统一下单后查询支付状态 * @param body 商品描述 * @param total_fee 总金额 * @param bill_number 商户订单号 * @param auth_code 支付授权码 * @param trade_status 支付授权码 * @throws WxPayException * @return 刷卡支付结果 */ public static async Task RunQuery(ElectronicOrderModel order, int count, int interval) { //用商户订单号去查单 string out_trade_no = order.BillNumber; WxPayData result = null; bool miniProgramPay = false; if (order.Optional.ContainsKey("MiniProgram")) { Logger.Info("miniProgramPay is true"); miniProgramPay = true; } else { Logger.Info("miniProgramPay is false"); } //确认支付是否成功,每隔一段时间查询一次订单，共查询count次 while (count-- > 0) { var queryResult = await Query(out_trade_no, (WxPayConfig)order.Config, miniProgramPay); //如果需要继续查询，则等待2s后继续 if (queryResult.Status == 2) { Logger.Info("Mircopay in progress, continue"); await Task.Delay(interval); continue; } //查询成功,返回订单查询接口返回的数据 else if (queryResult.Status == 1) { Logger.Info("Mircopay success, return order query result : " + queryResult.PayData.ToXml()); return queryResult.PayData; } //订单交易失败，直接返回刷卡支付接口返回的结果，失败原因会在err_code中描述 else { Logger.Error("Micropay failure, return micropay result : " + queryResult.PayData.ToXml()); //return result; } } return result; ////确认失败，则撤销订单 //Log.Error("MicroPay", "Micropay failure, Reverse order is processing..."); //if(!Cancel(out_trade_no)) //{ // Log.Error("MicroPay", "Reverse order failure"); // throw new WxPayException("Reverse order failure！"); //} } /** * * 查询订单情况 * @param string out_trade_no 商户订单号 * @param int succCode 查询订单结果：0表示订单不成功，1表示订单成功，2表示继续查询 * @return 订单查询接口返回的数据，参见协议接口 */ public static async Task Query(string out_trade_no, WxPayConfig config, bool miniProgramPay = false) { var wxPayDataWithResult = new WxPayDataWithResult(); WxPayData queryOrderInput = new WxPayData(); wxPayDataWithResult.PayData = queryOrderInput; queryOrderInput.SetValue("out_trade_no",out_trade_no); WxPayData result = await WxPayApi.OrderQuery(queryOrderInput, config, miniProgramPay); if(result.GetValue("return_code").ToString() == "SUCCESS" && result.GetValue("result_code").ToString() == "SUCCESS") { //支付成功 if(result.GetValue("trade_state").ToString() == "SUCCESS") { wxPayDataWithResult.Status = 1; return wxPayDataWithResult; } //用户支付中，需要继续查询 else if(result.GetValue("trade_state").ToString() == "USERPAYING") { wxPayDataWithResult.Status = 2; return wxPayDataWithResult; } } //如果返回错误码为“此交易订单号不存在”则直接认定失败 if (result.IsSet("err_code") && (result.GetValue("err_code").ToString() == "ORDERNOTEXIST")) { wxPayDataWithResult.Status = 0; } else { //如果是系统错误，则后续继续 wxPayDataWithResult.Status = 2; } return wxPayDataWithResult; } /** * * 撤销订单，如果失败会重复调用10次 * @param string out_trade_no 商户订单号 * @param depth 调用次数，这里用递归深度表示 * @return false表示撤销失败，true表示撤销成功 */ public static async Task Cancel(string out_trade_no, WxPayConfig config, X509Certificate2 certification, int depth = 0) { if(depth > 10) { return false; } WxPayData reverseInput = new WxPayData(); reverseInput.SetValue("out_trade_no",out_trade_no); WxPayData result = await WxPayApi.Reverse(reverseInput, config, certification); //接口调用失败 if(result.GetValue("return_code").ToString() != "SUCCESS") { return false; } //如果结果为success且不需要重新调用撤销，则表示撤销成功 if (result.GetValue("result_code").ToString() == "SUCCESS" && result.GetValue("recall").ToString() == "N") { return true; } else if (result.GetValue("recall").ToString() == "Y") { return await Cancel(out_trade_no, config, certification, ++depth); } //用户支付中，2s后再次发起撤销 else if (result.GetValue("err_code").ToString() == "USERPAYING") { await Task.Delay(2 * 1000); return await Cancel(out_trade_no, config, certification, ++depth); } return false; } /** * 统一下单业务流程逻辑 * @param body 商品描述 * @param total_fee 总金额 * @param bill_number 商户订单号 * @param trade_status 支付授权码 * @throws WxPayException * @return 统一下单返回二维码连接结果 */ public static async Task UnifiedOrder(ElectronicOrderModel order) { //string body, string total_fee, string bill_number, string auth_code //set the default trade_status to PAYERROR order.TradeStatus = TradeStatus.PAYERROR; WxPayData data = new WxPayData(); data.SetValue("body", order.Title);//商品描述 data.SetValue("total_fee", Convert.ToInt32(order.NetAmount * 100));//总金额 if (order.Optional.ContainsKey("mobilePayId")) { data.SetValue("trade_type", "JSAPI");//交易类型 data.SetValue("openid", order.Optional["mobilePayId"]); } else { data.SetValue("trade_type", "NATIVE");//交易类型 } data.SetValue("out_trade_no", order.BillNumber);//商户订单号 data.SetValue("product_id", "1"); data.SetValue("time_expire", DateTime.Now.AddMinutes(1).ToString("yyyyMMddHHmmss")); WxPayData result = await WxPayApi.UnifiedOrder(data, (WxPayConfig)order.Config); //提交被扫支付，接收返回结果 //如果提交被扫支付接口调用失败，则抛异常 if (!result.IsSet("return_code") || result.GetValue("return_code").ToString() == "FAIL") { string returnMsg = result.IsSet("return_msg") ? result.GetValue("return_msg").ToString() : ""; Log.Error("UnifiedOrder", "UnifiedOrder API interface call failure, result : " + result.ToXml()); throw new WxPayException("UnifiedOrder API interface call failure, return_msg : " + returnMsg); } //签名验证 result.CheckSign((WxPayConfig)order.Config); Log.Debug("UnifiedOrder", "UnifiedOrder response check sign success"); //统一下单成功 if (result.GetValue("return_code").ToString() == "SUCCESS" && result.GetValue("result_code").ToString() == "SUCCESS") { Log.Debug("UnifiedOrder", "UnifiedOrder business success, result : " + result.ToXml()); order.TradeStatus = TradeStatus.SUCCESS; return result; } /****************************************************************** * 剩下的都是接口调用成功，业务失败的情况 * ****************************************************************/ //1）业务结果明确失败 if (result.GetValue("err_code").ToString() != "USERPAYING" && result.GetValue("err_code").ToString() != "SYSTEMERROR") { Log.Error("UnifiedOrder", "UnifiedOrder API interface call success, business failure, result : " + result.ToXml()); return result; } return result; } } }