微信支付类

微信支付类：

引用程序集 Senparc.Weixin.TenPay （ Version—1.3.0.1）

 /// <summary>
    /// 微信支付类
    /// </summary>
    public class WxPay
    {
       //以下配置用户填写自己相关配置
       
        public static readonly string AppAppId = Common.GetConfig("WxPay_AppId");
        public static readonly string AppMchId = Common.GetConfig("WxPay_MchId");
        public static readonly string AppKey = Common.GetConfig("WxPay_Key"); //支付密钥

        public static readonly string JsApiAppId = Common.GetConfig("WxPay_JsApi_AppId");
        public static readonly string JsApiMchId = Common.GetConfig("WxPay_JsApi_MchId");
        public static readonly string JsApiKey = Common.GetConfig("WxPay_JsApi_Key");
        public static readonly string JsApiAppSecret = Common.GetConfig("WxPay_JsApi_AppSecret"); //唯一凭证密钥，仅JSAPI支付的时候需要配置，用于获取openId
        public static readonly string NotifyUrl = Common.GetConfig("WxPay_NotifyUrl");
        #region App

        /// <summary>
        /// 获取APP支付参数
        /// </summary>
        public WxPayParameter GetAppPayParameter(string appId, string mchId, string key, string orderNo, decimal amount, string body, string ip, string attach, out string msg)
        {
            WxPayParameter param = null;

            var preOrder = CreatePrePayOrder(appId, mchId, key, TenPayV3Type.APP, orderNo, amount, body, ip, null, null, attach);

            msg = preOrder.return_msg.ToJson();

            if (preOrder.IsReturnCodeSuccess() && preOrder.IsResultCodeSuccess())
            {
                param = new WxPayParameter()
                {
                    AppId = preOrder.appid,
                    PartnerId = preOrder.mch_id,
                    PrepayId = preOrder.prepay_id,
                    NonceStr = preOrder.nonce_str,
                    Timestamp = GetTimestamp(),
                    Package = "Sign=WXPay",
                };

                param.Sign = GetAppPaySign(appId, mchId, key, param.NonceStr, param.Package, param.PrepayId, param.Timestamp);
            }
            else
            {
                //预支付订单创建失败，记日志
            }

            return param;
        }

        /// <summary>
        /// 获取APP支付参数
        /// </summary>
        public WxPayParameter GetAppPayParameter(string orderNo, decimal amount, string body, string ip, string attach)
        {
            WxPayParameter param = null;

            var preOrder = CreatePrePayOrder(TenPayV3Type.APP, orderNo, amount, body, ip, null, null, attach);

            if (preOrder.IsReturnCodeSuccess() && preOrder.IsResultCodeSuccess())
            {
                param = new WxPayParameter()
                {
                    AppId = preOrder.appid,
                    PartnerId = preOrder.mch_id,
                    PrepayId = preOrder.prepay_id,
                    NonceStr = preOrder.nonce_str,
                    Timestamp = GetTimestamp(),
                    Package = "Sign=WXPay",
                };

                param.Sign = GetAppPaySign(param.NonceStr, param.Package, param.PrepayId, param.Timestamp);
            }
            else
            {
                //预支付订单创建失败，记日志
            }

            return param;
        }

        /// <summary>
        /// 获取APP支付签名
        /// </summary>
        private string GetAppPaySign(string nonceStr, string package, string prepayId, string timestamp)
        {
            string param = "appid={0}&noncestr={1}&package={2}&partnerid={3}&prepayid={4}&timestamp={5}&key={6}";
            string str = string.Format(param, AppAppId, nonceStr, package, AppMchId, prepayId, timestamp, AppKey);
            string sign = str.ToMd5().ToUpper();
            return sign;
        }

        /// <summary>
        /// 获取APP支付签名
        /// </summary>
        private string GetAppPaySign(string appId, string mchId, string key, string nonceStr, string package, string prepayId, string timestamp)
        {
            string param = "appid={0}&noncestr={1}&package={2}&partnerid={3}&prepayid={4}&timestamp={5}&key={6}";
            string str = string.Format(param, appId, nonceStr, package, mchId, prepayId, timestamp, key);
            string sign = str.ToMd5().ToUpper();
            return sign;
        }

        /// <summary>
        /// APP支付申请退款
        /// </summary>
        public bool ApplyRefundApp(TenPayV3Type payType, string orderNo, string refundNo, decimal orderAmount, decimal refundAmount, out string errMsg)
        {
            return ApplyRefund(TenPayV3Type.APP, orderNo, refundNo, orderAmount, refundAmount, out errMsg);
        }


        #endregion

        #region JsApi

        /// <summary>
        /// 获取JsApi支付参数
        /// </summary>
        public WxPayParameter GetJsApiPayParameter(string orderNo, decimal amount, string body, string ip, string openId, string attach, ClothingWeChatPaySetting paySetting = null)
        {
            WxPayParameter param = null;

            var preOrder = CreatePrePayOrder(TenPayV3Type.JSAPI, orderNo, amount, body, ip, openId, null, attach, paySetting);

            if (preOrder.IsReturnCodeSuccess() && preOrder.IsResultCodeSuccess())
            {
                param = new WxPayParameter()
                {
                    AppId = preOrder.appid,
                    PartnerId = preOrder.mch_id,
                    PrepayId = preOrder.prepay_id,
                    NonceStr = preOrder.nonce_str,
                    Timestamp = GetTimestamp(),
                    Package = string.Format("prepay_id={0}", preOrder.prepay_id),
                };

                param.Sign = GetJsApiPaySign(param.NonceStr, param.Package, param.SignType, param.Timestamp);
            }
            else
            {
                param = new WxPayParameter();
                //预支付订单创建失败，记日志
            }

            return param;
        }

        /// <summary>
        /// 获取JsApi支付签名
        /// </summary>
        private string GetJsApiPaySign(string nonceStr, string package, string signType, string timeStamp)
        {
            string template = "appId={0}&nonceStr={1}&package={2}&signType={3}&timeStamp={4}&key={5}";
            string str = string.Format(template, JsApiAppId, nonceStr, package, signType, timeStamp, JsApiKey);
            string sign = str.ToMd5().ToUpper();
            return sign;
        }

        /// <summary>
        /// JsApi支付申请退款
        /// </summary>
        public bool ApplyRefundJsApi(TenPayV3Type payType, string orderNo, string refundNo, decimal orderAmount, decimal refundAmount, out string errMsg)
        {
            return ApplyRefund(TenPayV3Type.JSAPI, orderNo, refundNo, orderAmount, refundAmount, out errMsg);
        }

        #endregion

        #region Native

        /// <summary>
        /// 获取扫码支付的二维码图片链接地址(将链接用二维码工具生成二维码打印出来，顾客可以用微信扫码支付, 有效期为2小时)
        /// </summary>
        public string GetQrCodeUrl(string orderNo, decimal amount, string body, string ip, string productId, string attach)
        {
            string url = string.Empty;

            var preOrder = CreatePrePayOrder(TenPayV3Type.NATIVE, orderNo, amount, body, ip, null, productId, attach);

            if (preOrder.IsReturnCodeSuccess() && preOrder.IsResultCodeSuccess())
            {
                url = preOrder.code_url;
            }

            return url;
        }

        /// <summary>
        /// Native支付申请退款
        /// </summary>
        public bool ApplyRefundNative(TenPayV3Type payType, string orderNo, string refundNo, decimal orderAmount, decimal refundAmount, out string errMsg)
        {
            return ApplyRefund(TenPayV3Type.NATIVE, orderNo, refundNo, orderAmount, refundAmount, out errMsg);
        }

        #endregion

        /// <summary>
        /// 创建预支付交易单
        /// </summary>
        private UnifiedorderResult CreatePrePayOrder(TenPayV3Type payType, string orderNo, decimal amount, string body, string ip, string openId, string productId, string attach, ClothingWeChatPaySetting paySetting = null)
        {
            string nonceStr = Guid.NewGuid().ToString("N");
            int cent = (int)(amount * 100);

            string appId = JsApiAppId;
            string mchId = JsApiMchId;
            string key = JsApiKey;
            switch (payType)
            {
                case TenPayV3Type.APP:
                    appId = AppAppId;
                    mchId = AppMchId;
                    key = AppKey;
                    break;
                case TenPayV3Type.JSAPI:
                    //非公众号-进行在线订单支付时的赋值方式
                    if (paySetting != null)
                    {
                        appId = paySetting.App_Id;
                        mchId = paySetting.Mchid;
                        key = paySetting.APIKey;
                    }
                    break;
            }
            var payParams = new { JsApi_AppId = appId, JsApi_Key = key, JsApi_MchId = mchId,OrderNo= orderNo, Amount= cent,Ip= ip, BackEndUrl=NotifyUrl,PayType= payType,OpenId= openId, Body = body,ProductId= productId,Attach= attach };
            NLogger.Default.Info(string.Format("获取支付参数-前：{0}", Newtonsoft.Json.JsonConvert.SerializeObject(payParams)));
            var param = new TenPayV3UnifiedorderRequestData(appId, mchId, body, orderNo, cent, ip, NotifyUrl, payType, openId, key, nonceStr, productId: productId, attach: attach);
            var order = TenPayV3.Unifiedorder(param);
            NLogger.Default.Info(string.Format("获取支付参数-后：{0}",Newtonsoft.Json.JsonConvert.SerializeObject(order)));
            return order;
        }

        /// <summary>
        /// 创建预支付交易单
        /// </summary>
        private UnifiedorderResult CreatePrePayOrder(string appId, string mchId, string key, TenPayV3Type payType, string orderNo, decimal amount, string body, string ip, string openId, string productId, string attach)
        {
            string nonceStr = Guid.NewGuid().ToString("N");
            int cent = (int)(amount * 100);

            var param = new TenPayV3UnifiedorderRequestData(appId, mchId, body, orderNo, cent, ip, NotifyUrl, payType, openId, key, nonceStr, productId: productId, attach: attach);
            var order = TenPayV3.Unifiedorder(param);
            return order;
        }


        /// <summary>
        /// 获取时间戳。标准北京时间，时区为东八区，自1970年1月1日 0点0分0秒以来的秒数
        /// </summary>
        private string GetTimestamp()
        {
            TimeSpan ts = DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, 0);
            return Convert.ToInt64(ts.TotalSeconds).ToString();
        }

        /// <summary>
        /// 申请退款
        /// </summary>
        private bool ApplyRefund(TenPayV3Type payType, string orderNo, string refundNo, decimal orderAmount, decimal refundAmount, out string errMsg)
        {
            bool success = false;
            errMsg = string.Empty;

            string nonceStr = Guid.NewGuid().ToString("N");
            int orderCent = (int)(orderAmount * 100);
            int refundCent = (int)(refundAmount * 100);

            string appId = JsApiAppId;
            string mchId = JsApiMchId;
            string key = JsApiKey;

            if (payType == TenPayV3Type.APP)
            {
                appId = AppAppId;
                mchId = AppMchId;
                key = AppKey;
            }

            var param = new TenPayV3RefundRequestData(appId, mchId, key, null, nonceStr, null, orderNo, refundNo, orderCent, refundCent, mchId, null);

            var cert = @"D:\cert\apiclient_cert_SenparcRobot.p12";

            var result = TenPayV3.Refund(param, cert, mchId);

            if (result.result_code == "SUCCESS")
            {
                success = true;
            }
            else
            {
                errMsg = result.ToJson();
            }

            return success;
        }


        private void QueryOrder(TenPayV3Type payType, string orderNo, decimal amount)
        {
            string appId = JsApiAppId;
            string mchId = JsApiMchId;
            string key = JsApiKey;

            if (payType == TenPayV3Type.APP)
            {
                appId = AppAppId;
                mchId = AppMchId;
                key = AppKey;
            }

            var param = new TenPayV3OrderQueryRequestData(appId, mchId, "", Guid.NewGuid().ToString("N"), orderNo, key);
            var result = TenPayV3.OrderQuery(param);
            //result.IsReturnCodeSuccess()
            int cent = (int)(amount * 100);
            bool s = cent.ToString() == result.total_fee;
        }
    }

WxPayParameter微信支付参数：

/// <summary>
    /// 微信支付参数
    /// </summary>
    public class WxPayParameter
    {
        /// <summary>
        /// 微信开放平台审核通过的应用APPID / 公众号id(商户注册具有支付权限的公众号成功后即可获得)
        /// </summary>
        public string AppId { get; set; }

        /// <summary>
        /// 微信支付分配的商户号
        /// </summary>
        public string PartnerId { get; set; }

        /// <summary>
        /// 预支付交易会话ID
        /// </summary>
        public string PrepayId { get; set; }

        /// <summary>
        /// 扩展字段 APP为固定值Sign=WXPay / JsApi为统一下单接口返回的prepay_id参数值，提交格式如：prepay_id=***
        /// </summary>
        public string Package { get; set; }

        /// <summary>
        /// 随机字符串
        /// </summary>
        public string NonceStr { get; set; }

        /// <summary>
        /// 时间戳
        /// </summary>
        public string Timestamp { get; set; }

        /// <summary>
        /// 签名
        /// </summary>
        public string Sign { get; set; }

        /// <summary>
        /// 签名方式 默认为MD5
        /// </summary>
        public string SignType { get; } = "MD5";
    }