/// <summary>
/// 申请退款订单
/// </summary>
/// <param name="out_trade_no">商户订单号</param>
/// <param name="out_refund_no">商户退款单号</param>
/// <param name="total_fee">订单金额,单位/分</param>
/// <param name="refund_fee">申请退款金额,单位/分</param>
/// <param name="notify_url">退款异步通知回调地址</param>
/// <param name="refund_desc">退款原因</param>
/// <returns>callback xml</returns>
public string Refund(string out_trade_no, string out_refund_no, string total_fee, string refund_fee, string notify_url = null, string refund_desc = null)
{
#region 查询map
SortedDictionary <string, string> sortedDictionary = new SortedDictionary <string, string>()
{
{ "appid", WxConfig.AppId }, //微信分配的公众账号ID（企业号corpid即为此appId）
{ "mch_id", WxConfig.MCH_ID }, //商户号
{ "nonce_str", WxUtils.RandomStr(16) }, //随机16位字符串
{ "out_refund_no", out_refund_no }, //商户内部退款单号,同一单号退款多次申请只退一次
{ "out_trade_no", out_trade_no }, //商户订单号
{ "total_fee", total_fee }, //订单总金额
{ "refund_fee", refund_fee }, //申请退款金额,不能大于订单总金额
};
if (string.IsNullOrEmpty(notify_url))
{
sortedDictionary.Add("notify_url", notify_url);
}
if (string.IsNullOrEmpty(notify_url))
{
sortedDictionary.Add("refund_desc", refund_desc);
}
#endregion
#region 生成sign
string md5key = $@"{ sortedDictionary.SortedDictionaryToWxUrl()}&key={WxConfig.PARTNER_ID}";
string sign = WxUtils.GetSign(md5key, "utf-8");
string xml = sortedDictionary.SortedDictionaryToWxXml().Replace("</xml>", $@"<sign><![CDATA[{ sign }]]></sign></xml>");
#endregion
return(WxUtils.PostToWxOpenApi(refundUrl, xml));
}
/// <summary>
/// 申请支付
/// </summary>
public string Paying(string auth_code, string device_info, string body, string out_trade_no, string notify_url, string total_fee)
{
string ip = _contextAccessor.HttpContext.Connection.RemoteIpAddress.MapToIPv4().ToString();
#region 单map
SortedDictionary <string, string> sortedDictionary = new SortedDictionary <string, string>()
{
{ "appid", WxConfig.AppId }, //微信分配的公众账号ID（企业号corpid即为此appId）
{ "attach", "wxpay" }, //说明.
{ "auth_code", auth_code }, //扫码支付授权码
{ "body", body }, //xxx店-收银机收款
{ "device_info", device_info }, //设备号
{ "mch_id", WxConfig.MCH_ID }, //商户号
{ "nonce_str", WxUtils.RandomStr(16) }, //随机16位字符串
{ "out_trade_no", out_trade_no }, //订单号
{ "notify_url", notify_url },
{ "spbill_create_ip", ip }, //用户IP
{ "total_fee", total_fee }, //金额
};
#endregion
#region 生成sign
string md5key = $@"{ sortedDictionary.SortedDictionaryToWxUrl()}&key={WxConfig.PARTNER_ID}";
string sign = WxUtils.GetSign(md5key, "utf-8");
string xml = sortedDictionary.SortedDictionaryToWxXml().Replace("</xml>", $@"<sign><![CDATA[{ sign }]]></sign></xml>");
#endregion
return(WxUtils.PostToWxOpenApi(payByCardUrl, xml));
}
/// <summary>
///统一下单接口
/// </summary>
/// <param name="total_fee">订单金额</param>
/// <param name="out_trade_no">订单号</param>
/// <returns></returns>
public MobilePayOutput Paying(string total_fee, string out_trade_no)
{
#region 统一下单map
SortedDictionary <string, string> sortedDictionary = new SortedDictionary <string, string>()
{
{ "appid", WxConfig.AppId },
{ "attach", "wxpay" },
{ "body", "订单支付" },
{ "mch_id", WxConfig.MCH_ID },
{ "nonce_str", WxUtils.RandomStr(16) },
{ "notify_url", WxConfig.AppPayNodifyUrl },
{ "spbill_create_ip", "" }, //用户IP
{ "total_fee", total_fee }, //金额
{ "trade_type", "APP" },
{ "out_trade_no", out_trade_no }//订单号
};
#endregion
#region 生成sign
string md5key = $@"{ sortedDictionary.SortedDictionaryToWxUrl()}&key={WxConfig.PARTNER_ID}";
string sign = WxUtils.GetSign(md5key, "utf-8");
#endregion
#region 请求微信统一下单接口 获取预支付订单号
string xml = sortedDictionary.SortedDictionaryToWxXml().Replace("</xml>", $@"<sign><![CDATA[{ sign }]]></sign></xml>");
string callbackXml = WxUtils.PostToWxOpenApi(unifiedorderUrl, xml);//请求微信统一下单接口
MobilePayCallbackDto callbackobj = (MobilePayCallbackDto)WxUtils.XmlDeserialize(typeof(MobilePayCallbackDto), callbackXml);
#endregion
#region 用户端sign
MobilePayOutput output = new MobilePayOutput
{
appid = WxConfig.AppId,
noncestr = WxUtils.RandomStr(16),
package = "Sign=WXPay",
partnerid = WxConfig.PARTNER_ID,
prepayid = callbackobj.prepay_id,
timestamp = DateTime.UtcNow.ToTimeStamp(),
sign = "",
};
var appmap = WxUtils.ObjToSortedDictionary(output);
string appmd5key = $@"{ appmap.SortedDictionaryToWxUrl()}&key={WxConfig.PARTNER_ID}";
output.sign = WxUtils.GetSign(appmd5key, "utf-8");
#endregion
return(output);
}
/// <summary>
/// 根据商户订单号查询微信支付状态
/// </summary>
/// <param name="out_trade_no">商户订单号</param>
/// <returns></returns>
public string OrderQueryByOrderNumber(string out_trade_no)
{
#region 查询map
SortedDictionary <string, string> sortedDictionary = new SortedDictionary <string, string>()
{
{ "appid", WxConfig.AppId }, //微信分配的公众账号ID（企业号corpid即为此appId）
{ "mch_id", WxConfig.MCH_ID }, //商户号
{ "nonce_str", WxUtils.RandomStr(16) }, //随机16位字符串
{ "out_trade_no", out_trade_no }//微信订单号
};
#endregion
#region 生成sign
string md5key = $@"{ sortedDictionary.SortedDictionaryToWxUrl()}&key={WxConfig.PARTNER_ID}";
string sign = WxUtils.GetSign(md5key, "utf-8");
string xml = sortedDictionary.SortedDictionaryToWxXml().Replace("</xml>", $@"<sign><![CDATA[{ sign }]]></sign></xml>");
#endregion
return(WxUtils.PostToWxOpenApi(orderQueryUrl, xml));
}
