public AlipayRefundRequestContent(IGateWay gateWay, IRefundOrder order)
: base(gateWay)
{
if (string.IsNullOrEmpty(order.OrderNo) && string.IsNullOrEmpty(order.PlatformTradeNo))
{
throw new PaymentArgumentException(gateWay.Name, "out_trade_no,trade_no", "参数错误out_trade_no和trade_no不能同时为空");
}
if (order.RefundAmount <= 0)
{
throw new PaymentArgumentException(gateWay.Name, "refund_amount", "参数错误refund_amount");
}
if (!string.IsNullOrEmpty(order.OrderNo))
{
this["out_trade_no"] = order.OrderNo;
}
if (!string.IsNullOrEmpty(order.PlatformTradeNo))
{
this["trade_no"] = order.PlatformTradeNo;
}
this["refund_amount"] = order.RefundAmount.ToString(CultureInfo.InvariantCulture);
}
public void Refund()
{
IRefundOrder order = GetRefundOrder();
if (order != null)
{
PayProvider pay = LoadProvider(order.PayProvider);
if (pay != null)
{
if (pay.IsOnlinePay)
{
OnSubmit(pay.Refund(this, pay.PackData(order.TradeNo, order), SubmitText));
}
else
{
RefundResult result = new RefundResult(new RefundInfo()
{
PayTradeNo = order.PayTradeNo,
TotalFee = order.TotalFee,
Status = true
});
OnCallback(pay, true, result);
OnRedirect(this, pay, result, true);
//try { Response.Redirect(ReturnUrl, true); }
//catch (Exception) { }
}
}
else
{
OnError(string.Concat("第三方支付\"", order.PayProvider, "\"不被支持或已禁用！"));
}
}
else
{
OnError(string.Concat("获取订单信息错误！"));
}
}
/// <summary>
/// 微信交易退款。
/// </summary>
/// <param name="refundInfo">退款信息。</param>
/// <returns></returns>
public virtual async Task <IRefundResult> RefundPayment(IRefundOrder refundInfo)
{
if (refundInfo == null)
{
throw new ArgumentNullException("refundInfo");
}
if (!IsCertificateEnabled)
{
throw new NotSupportedException("不支持没有证书的操作。");
}
var payData = new Dictionary <string, string>();
payData.Add("appid", AppId);
payData.Add("mch_id", ShopId);
payData.Add("nonce_str", Guid.NewGuid().ToString().Replace("-", ""));//随机字符串
if (refundInfo.TransactionId != null)
{
payData.Add("transaction_id", refundInfo.TransactionId);
}
else
{
payData.Add("out_trade_no", refundInfo.TradeNo);
}
payData.Add("total_fee", refundInfo.RefundNo);
payData.Add("refund_fee", refundInfo.TradeNo);
if (refundInfo.RefundCurrency != null)
{
payData.Add("refund_fee_type", refundInfo.TradeNo);
}
payData.Add("op_user_id", refundInfo.Operator ?? ShopId);
payData.Add("sign", GetSignature(payData, ShopKey));
string backData = await HttpHelper.PostHttp(new Uri(RefundPayUrl), Encoding.UTF8.GetBytes(GetXml(payData)), "text/xml", Encoding.UTF8, 5000, Certificate);
XElement root = XDocument.Parse(backData).Element("xml");
if (root.Element("return_code").Value == "FAIL")
{
string errMsg = root.Element("return_msg").Value;
throw new WechatException(errMsg);
}
if (root.Element("result_code").Value == "FAIL")
{
string errMsg = root.Element("err_code").Value;
throw new WechatException(errMsg);
}
RefundResult result = new RefundResult();
result.RefundId = root.Element("refund_id").Value;
result.RefundChannel = root.Element("refund_channel").Value;
result.RefundFee = int.Parse(root.Element("refund_fee").Value);
result.RefundNo = root.Element("out_refund_no").Value;
result.Status = RefundStatus.PROCESSING;
if (root.Element("cash_refund_fee") != null)
{
result.RefundCash = int.Parse(root.Element("cash_fee").Value);
}
if (root.Element("coupon_refund_fee") != null)
{
result.Coupon = int.Parse(root.Element("coupon_refund_fee").Value);
}
return(result);
}
private static string Format(IRefundOrder order)
{
return(string.Concat(order.PayTradeNo, '^', order.TotalFee.ToString("F2"), '^', Format(order.Subject)));
}
