lyfz_repos/铂金版源码/LYFZ.WxPayAPI/MicroPay.cs

using System;
using System.Collections.Generic;
using System.Web;
using System.Threading;


namespace LYFZ.WxPayAPI
{
    public class MicroPay
    {
        /**
        * 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 auth_code 支付授权码
        * @throws WxPayException
        * @return 刷卡支付结果
        */
        public static Result<WxPayData> Run(string body, string total_fee, string auth_code, string AppId = "", string MacId = "", string key = "", string sub_mch_id = "",bool bMySalt=false)
        {
            Result<WxPayData> resultData = new Result<WxPayData>();
            Log.Info("MicroPay", "Micropay is processing...");

            WxPayData data = new WxPayData();
            data.SetValue("auth_code", auth_code);//授权码
            data.SetValue("body", body);//商品描述
            data.SetValue("total_fee", int.Parse(total_fee));//总金额
            data.SetValue("out_trade_no", WxPayApi.GenerateOutTradeNo());//产生随机的商户订单号
            if (!bMySalt)
            {
                data.SetValue("sub_mch_id", sub_mch_id);//绑定子商户号
            }
            else
            {
                sub_mch_id = "";
                //data.SetValue("sub_mch_id", sub_mch_id);//绑定子商户号
            }

            WxPayData result = WxPayApi.Micropay(data, 120, AppId, MacId, key); //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);
                resultData.Status = false;
                resultData.StatusCode = 0;
                resultData.Message = returnMsg;
                resultData.Data = result;
                return resultData;
            }

            //签名验证
            result.CheckSign(key);
            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());

                resultData.Status = true;
                resultData.StatusCode = 1;
                resultData.Message = result.ToXml();
                resultData.Data = result;
                return resultData;
            }

            /******************************************************************
             * 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());

                resultData.Status = false;
                resultData.StatusCode = 0;
                resultData.Message = result.ToXml();
                resultData.Data = result;

                return resultData;
            }

            //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)
            {
                int succResult = 0;//查询结果 

                WxPayData queryResult = Query(out_trade_no, out succResult, AppId, MacId, key, sub_mch_id);
                //如果需要继续查询，则等待2s后继续
                if (succResult == 2)
                {
                    Thread.Sleep(2000);
                    continue;
                }
                //查询成功,返回订单查询接口返回的数据
                else if (succResult == 1)
                {
                    Log.Debug("MicroPay", "Mircopay success, return order query result : " + queryResult.ToXml());
                    resultData.Status = true;
                    resultData.StatusCode = 1;
                    resultData.Message = queryResult.ToXml();
                    resultData.Data = queryResult;
                    return resultData;
                }
                //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());
                    resultData.Status = false;
                    resultData.StatusCode = 0;
                    resultData.Message = result.ToXml();
                    resultData.Data = result;
                    return resultData;
                }
            }

            //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！");
            }

            if (result.GetValue("return_msg").ToString().ToUpper() == "OK")
            {
                resultData.Status = true;
                resultData.StatusCode = 1;
            }
            else
            {
                resultData.Status = false;
                resultData.StatusCode = 0;
            }
            resultData.Message = result.ToXml();
            resultData.Data = result;
            return resultData;
        }


        /**
	    * 
	    * 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 WxPayData Query(string out_trade_no, out int succCode, string AppId = "", string MacId = "", string key = "", string sub_mch_id = "")
	    {
		    WxPayData queryOrderInput = new WxPayData();
		    queryOrderInput.SetValue("out_trade_no",out_trade_no);
            if (!string.IsNullOrEmpty(sub_mch_id))
            {
                queryOrderInput.SetValue("sub_mch_id", sub_mch_id);
            }
            
            WxPayData result = WxPayApi.OrderQuery(queryOrderInput, 20, AppId, MacId, key);
		
		    if(result.GetValue("return_code").ToString() == "SUCCESS" 
			    && result.GetValue("result_code").ToString() == "SUCCESS")
		    {
			    //支付成功
                if (result.GetValue("trade_state") != null && result.GetValue("trade_state").ToString() == "SUCCESS")
                {
				    succCode = 1;
			   	    return result;
			    }
			    //用户支付中，需要继续查询
                else if (result.GetValue("trade_state") != null && result.GetValue("trade_state").ToString() == "USERPAYING")
                {
				    succCode = 2;
				    return result;
			    }
                else if (result.GetValue("trade_state") != null && result.GetValue("trade_state").ToString() == "NOTPAY")
                {
				    succCode = 3;
				    return result;
			    }
                else if (result.GetValue("trade_state") != null && result.GetValue("trade_state").ToString() == "PAYERROR")
                {
				    succCode = 4;
				    return result;
			    }
		    }
		
		    //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.GetValue("err_code") != null && result.GetValue("err_code").ToString() == "ORDERNOTEXIST")
		    {
			    succCode = 0;
		    } 
            else
            {
			    //如果是系统错误，则后续继续
			    succCode = 2;
		    }
		    return result;
	    }
	

	    /**
	    * 
	    * 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 bool Cancel(string out_trade_no, int depth = 0)
	    {
		    if(depth > 10)
            {
			    return false;
		    }
		
		    WxPayData reverseInput = new WxPayData();
		    reverseInput.SetValue("out_trade_no",out_trade_no);
		    WxPayData result = WxPayApi.Reverse(reverseInput);
		
		    //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 Cancel(out_trade_no, ++depth);
		    }
		    return false;
	    }
    }
}