private string BuildRequest(string orderNo, string subject, decimal totalAmt, EnumAliPayType aliPayType, EnumSignType signType = EnumSignType.MD5)
{
SortedDictionary<string, string> dicParam = CreateParam(orderNo, subject, totalAmt, aliPayType);
string urlParam = CreateURLParamString(dicParam, aliPayType);
string sign = HttpUtility.UrlEncode(BuildRequestsign(urlParam, signType), Encoding.UTF8);
dicParam.Add("sign", sign);
dicParam.Add("sign_type", signType.ToString());
if (aliPayType == EnumAliPayType.Mobile)
{
return urlParam + "&sign=\"" + sign + "\"&sign_type=\"" + signType.ToString() + "\"";
}
else
return BuildForm(dicParam);
}
private string CreateURLParamString(SortedDictionary<string, string> dicArray, EnumAliPayType type = EnumAliPayType.Website)
{
StringBuilder prestr = new StringBuilder();
foreach (KeyValuePair<string, string> temp in dicArray.OrderBy(o => o.Key))
{
if (type == EnumAliPayType.Mobile)
prestr.Append(temp.Key + "=\"" + temp.Value + "\"&");
else
prestr.Append(temp.Key + "=" + temp.Value + "&");
}
int nLen = prestr.Length;
prestr.Remove(nLen - 1, 1);
return prestr.ToString();
}
private SortedDictionary<string, string> CreateParam(string orderNo, string subject, decimal totalAmt, EnumAliPayType aliPayType)
{
SortedDictionary<string, string> dic = new SortedDictionary<string, string>();
#region BASEPARAM
string service = aliPayType == EnumAliPayType.Website ? Config.ALIPay_WEB_SERVICE
: aliPayType == EnumAliPayType.Wap ? Config.ALIPay_WAP_SERVICE
: aliPayType == EnumAliPayType.Mobile ? Config.ALIPay_MOBILE_SERVICE
: "";
dic.Add("service", service);
dic.Add("partner", Config.ALI_PARTER);
dic.Add("_input_charset", Config.CHARTSET);
dic.Add("notify_url", Config.ALIPay_NotifyURL);
//dic.Add("sign_type", SIGNTYPE);
#endregion
#region BIZPARAM
dic.Add("out_trade_no", orderNo);
dic.Add("subject", subject);
dic.Add("payment_type", Config.PAYMENT_TYPE);
dic.Add("total_fee", totalAmt.ToString("F2"));
//dic.Add("seller_email", ALI_SELLEREMAIL);
dic.Add("seller_id", Config.ALI_SELLERID);
//dic.Add("anti_phishing_key", anti_phishing_key);//防钓鱼时间戳,如果已申请开通防钓鱼证，则此字段必填。
//dic.Add("exter_invoke_ip", exter_invoke_ip);//客户端 IP ,如果商户申请后台开通防钓鱼 IP地址检查选项，此字段必填，校验用。
#endregion
if (aliPayType == EnumAliPayType.Mobile)
dic.Add("body", subject + "购买");
return dic;
}
