public static async Task <string> PostRefundAsync(long orderid, decimal total, decimal cash)
{
string orderno = orderid.ToString();
XElem xo = new XElem("xml");
xo.AddChild("appid", appid);
xo.AddChild("mch_id", mchid);
xo.AddChild("nonce_str", noncestr);
xo.AddChild("op_user_id", mchid);
xo.AddChild("out_refund_no", orderno);
xo.AddChild("out_trade_no", orderno);
xo.AddChild("refund_fee", ((int)(cash * 100)).ToString());
xo.AddChild("total_fee", ((int)(total * 100)).ToString());
string sign = Sign(xo);
xo.AddChild("sign", sign);
XElem xi = (await WCPay.PostAsync <XElem>(null, "/secapi/pay/refund", xo.Dump())).B;
string return_code = xi.Child(nameof(return_code));
if (return_code != "SUCCESS")
{
string return_msg = xi.Child(nameof(return_msg));
return(return_msg);
}
string result_code = xi.Child(nameof(result_code));
if (result_code != "SUCCESS")
{
string err_code_des = xi.Child(nameof(err_code_des));
return(err_code_des);
}
return(null);
}
public static async Task <decimal> PostOrderQueryAsync(long orderid)
{
XElem x = new XElem("xml");
x.AddChild("appid", appid);
x.AddChild("mch_id", mchid);
x.AddChild("nonce_str", noncestr);
x.AddChild("out_trade_no", orderid.ToString());
string sign = Sign(x);
x.AddChild("sign", sign);
XElem xe = (await WCPay.PostAsync <XElem>(null, "/pay/orderquery", x.Dump())).B;
sign = xe.Child(nameof(sign));
xe.Sort();
if (sign != Sign(xe, "sign"))
{
return(0);
}
string return_code = xe.Child(nameof(return_code));
if (return_code != "SUCCESS")
{
return(0);
}
decimal cash_fee = xe.Child(nameof(cash_fee));
return(cash_fee);
}
public static async Task <string> PostUnifiedOrderAsync(long orderid, decimal total, string openid, string ip, string notifyurl)
{
XElem x = new XElem("xml");
x.AddChild("appid", appid);
x.AddChild("body", BODY_DESC);
x.AddChild("mch_id", mchid);
x.AddChild("nonce_str", noncestr);
x.AddChild("notify_url", notifyurl);
x.AddChild("openid", openid);
x.AddChild("out_trade_no", orderid.ToString());
x.AddChild("spbill_create_ip", ip);
x.AddChild("total_fee", ((int)(total * 100)).ToString());
x.AddChild("trade_type", "JSAPI");
string sign = Sign(x);
x.AddChild("sign", sign);
XElem xe = (await WCPay.PostAsync <XElem>(null, "/pay/unifiedorder", x.Dump())).B;
string prepay_id = xe.Child(nameof(prepay_id));
if (prepay_id == null)
{
prepay_id = xe.Child("err_code");
}
return(prepay_id);
}
static string Sign(XElem xe, string exclude = null)
{
StringBuilder sb = new StringBuilder(1024);
for (int i = 0; i < xe.Count; i++)
{
XElem child = xe.Child(i);
// not include the sign field
if (exclude != null && child.Tag == exclude)
{
continue;
}
if (sb.Length > 0)
{
sb.Append('&');
}
sb.Append(child.Tag).Append('=').Append(child.Text);
}
sb.Append("&key=").Append(key);
return(StrUtility.MD5(sb.ToString()));
}
public static async Task <string> PostRefundQueryAsync(long orderid)
{
XElem xo = new XElem("xml");
xo.AddChild("appid", appid);
xo.AddChild("mch_id", mchid);
xo.AddChild("nonce_str", noncestr);
xo.AddChild("out_trade_no", orderid.ToString());
string sign = Sign(xo);
xo.AddChild("sign", sign);
XElem xi = (await WCPay.PostAsync <XElem>(null, "/pay/refundquery", xo.Dump())).B;
sign = xi.Child(nameof(sign));
xi.Sort();
if (sign != Sign(xi, "sign"))
{
return("返回结果签名错误");
}
string return_code = xi.Child(nameof(return_code));
if (return_code != "SUCCESS")
{
string return_msg = xi.Child(nameof(return_msg));
return(return_msg);
}
string result_code = xi.Child(nameof(result_code));
if (result_code != "SUCCESS")
{
return("退款订单查询失败");
}
string refund_status_0 = xi.Child(nameof(refund_status_0));
if (refund_status_0 != "SUCCESS")
{
return(refund_status_0 == "PROCESSING" ? "退款处理中" : refund_status_0 == "REFUNDCLOSE" ? "退款关闭" : "退款异常");
}
return(null);
}
public static bool Notified(XElem xe, out long out_trade_no, out decimal cash)
{
cash = 0;
out_trade_no = 0;
string appid = xe.Child(nameof(appid));
string mch_id = xe.Child(nameof(mch_id));
string nonce_str = xe.Child(nameof(nonce_str));
if (appid != WeiXinUtility.appid || mch_id != mchid || nonce_str != noncestr)
{
return(false);
}
string result_code = xe.Child(nameof(result_code));
if (result_code != "SUCCESS")
{
return(false);
}
string sign = xe.Child(nameof(sign));
xe.Sort();
if (sign != Sign(xe, "sign"))
{
return(false);
}
int cash_fee = xe.Child(nameof(cash_fee)); // in cent
cash = ((decimal)cash_fee) / 100;
out_trade_no = xe.Child(nameof(out_trade_no)); // 商户订单号
return(true);
}
public static async Task <string> PostTransferAsync(int id, string openid, string username, decimal cash, string desc)
{
XElem x = new XElem("xml");
x.AddChild("amount", ((int)(cash * 100)).ToString());
x.AddChild("check_name", "FORCE_CHECK");
x.AddChild("desc", desc);
x.AddChild("mch_appid", appid);
x.AddChild("mchid", mchid);
x.AddChild("nonce_str", noncestr);
x.AddChild("openid", openid);
x.AddChild("partner_trade_no", id.ToString());
x.AddChild("re_user_name", username);
x.AddChild("spbill_create_ip", spbillcreateip);
string sign = Sign(x);
x.AddChild("sign", sign);
XElem xe = (await WCPay.PostAsync <XElem>(null, "/mmpaymkttransfers/promotion/transfers", x.Dump())).B;
string return_code = xe.Child(nameof(return_code));
if ("SUCCESS" == return_code)
{
string result_code = xe.Child(nameof(result_code));
if ("SUCCESS" != result_code)
{
string err_code_des = xe.Child(nameof(err_code_des));
return(err_code_des);
}
}
else
{
string return_msg = xe.Child(nameof(return_msg));
return(return_msg);
}
return(null);
}