private string BuildRequest(TransmiParameterModel model, EnumWePayTradeType tradeType)
{
SortedDictionary <string, string> dicParam = CreateParam(model, tradeType);
string signString = CreateURLParamString(dicParam);
string key = tradeType == EnumWePayTradeType.APP ? WepayConfig.WEPAY_APP_KEY : WepayConfig.WEPAY_WEB_KEY;
string preString = signString + "&key=" + key;
string sign = MD5Helper.Sign(preString, WepayConfig.WEPAY_CHARTSET).ToUpper();
dicParam.Add("sign", sign);
return(BuildForm(dicParam));
}
/// <summary>
/// 统一下单
/// </summary>
/// <returns></returns>
private string UnifiedOrder(string orderNo, string productName, int totalFee, string customerIP, EnumWePayTradeType tradeType)
{
string requestXml = this.BuildRequest(orderNo, productName, totalFee, customerIP, tradeType);
string resultXml = HTTPHelper.Post(WepayConfig.WEPAY_PAY_URL, requestXml);
var dic = FromXml(resultXml);
string returnCode = "";
dic.TryGetValue("return_code", out returnCode);
if (returnCode == "SUCCESS")
{
if (tradeType == EnumWePayTradeType.APP)
{
var prepay_id = GetValueFromDic <string>(dic, "prepay_id");
if (!string.IsNullOrEmpty(prepay_id))
{
return(BuildAppPay(prepay_id));
}
else
{
throw new Exception("支付错误:" + GetValueFromDic <string>(dic, "err_code_des"));
}
}
else if (tradeType == EnumWePayTradeType.NATIVE)
{
string codeUrl = "";
dic.TryGetValue("code_url", out codeUrl);
if (!string.IsNullOrEmpty(codeUrl))
{
return(codeUrl);
}
else
{
throw new Exception("未找到对应的二维码链接");
}
}
else
{
throw new Exception("JSAPI & WAP 未实现");
}
}
else
{
throw new Exception("后台统一下单失败");
}
}
public string BuildWePay(string orderNo, string productName, int totalFee, string customerIP, EnumWePayTradeType tradeType)
{
return(this.UnifiedOrder(orderNo, productName, totalFee, customerIP, tradeType));
}
private static SortedDictionary <string, string> CreateParam(string orderNo, string productName, decimal totalFee, string customerIP, EnumWePayTradeType tradeType)
{
SortedDictionary <string, string> dic = new SortedDictionary <string, string>();
dic.Add("appid", tradeType == EnumWePayTradeType.APP ? WepayConfig.WEPAY_APP_APPID : WepayConfig.WEPAY_WEB_APPID); //账号ID
dic.Add("mch_id", tradeType == EnumWePayTradeType.APP ? WepayConfig.WEPAY_APP_MCH_ID : WepayConfig.WEPAY_WEB_MCH_ID); //商户号
dic.Add("nonce_str", Guid.NewGuid().ToString().Replace("-", "")); //随机字符串
dic.Add("body", productName); //商品描述
dic.Add("out_trade_no", orderNo); //商户订单号
dic.Add("total_fee", totalFee.ToString()); //总金额
dic.Add("spbill_create_ip", customerIP); //终端IP
dic.Add("notify_url", tradeType == EnumWePayTradeType.APP ? WepayConfig.WEPAY_APP_NOTIFY_URL : WepayConfig.WEPAY_WEB_NOTIFY_URL); //通知地址
dic.Add("trade_type", tradeType.ToString()); //交易类型
return(dic);
}
private string BuildRequest(string orderNo, string productName, int totalFee, string customerIP, EnumWePayTradeType tradeType)
{
SortedDictionary <string, string> dicParam = CreateParam(orderNo, productName, totalFee, customerIP, tradeType);
string signString = CreateURLParamString(dicParam);
string key = tradeType == EnumWePayTradeType.APP ? WepayConfig.WEPAY_APP_KEY : WepayConfig.WEPAY_WEB_KEY;
string preString = signString + "&key=" + key;
string sign = MD5Helper.Sign(preString, WepayConfig.WEPAY_CHARTSET).ToUpper();
dicParam.Add("sign", sign);
return(BuildForm(dicParam));
}
/// <summary>
/// 统一下单
/// </summary>
/// <returns></returns>
private string UnifiedOrder(TransmiParameterModel model, EnumWePayTradeType tradeType)
{
string requestXml = this.BuildRequest(model, tradeType);
string resultXml = HTTPHelper.Post(WepayConfig.WEPAY_PAY_URL, requestXml);
var dic = FromXml(resultXml);
string returnCode = "";
var resultCode = "";
dic.TryGetValue("result_code", out resultCode);
dic.TryGetValue("return_code", out returnCode);
if (returnCode == "SUCCESS" && resultCode == "SUCCESS")
{
if (tradeType == EnumWePayTradeType.APP)
{
var prepay_id = GetValueFromDic <string>(dic, "prepay_id");
if (!string.IsNullOrEmpty(prepay_id))
{
return(BuildAppPay(prepay_id));
}
else
{
throw new Exception("支付错误:" + GetValueFromDic <string>(dic, "err_code_des"));
}
}
else if (tradeType == EnumWePayTradeType.NATIVE)
{
string codeUrl = "";
dic.TryGetValue("code_url", out codeUrl);
if (!string.IsNullOrEmpty(codeUrl))
{
return(codeUrl);
}
else
{
throw new Exception("未找到对应的二维码链接");
}
}
else if (tradeType == EnumWePayTradeType.JSAPI)
{
var prepay_id = GetValueFromDic <string>(dic, "prepay_id");
if (!string.IsNullOrEmpty(prepay_id))
{
return(BuildWatPay(prepay_id));
}
else
{
throw new Exception("支付错误:" + GetValueFromDic <string>(dic, "err_code_des"));
}
}
else
{
throw new Exception("WAP 未实现");
}
}
else
{
throw new Exception("后台统一下单失败");
}
}
public string BuildWePay(TransmiParameterModel model, EnumWePayTradeType tradeType)
{
return(this.UnifiedOrder(model, tradeType));
}
private static SortedDictionary <string, string> CreateParam(TransmiParameterModel model, EnumWePayTradeType tradeType)
{
SortedDictionary <string, string> dic = new SortedDictionary <string, string>();
dic.Add("appid", tradeType == EnumWePayTradeType.APP ? WepayConfig.WEPAY_APP_APPID : WepayConfig.WEPAY_WEB_APPID); //账号ID
dic.Add("mch_id", tradeType == EnumWePayTradeType.APP ? WepayConfig.WEPAY_APP_MCH_ID : WepayConfig.WEPAY_WEB_MCH_ID); //商户号
dic.Add("nonce_str", Guid.NewGuid().ToString().Replace("-", "")); //随机字符串
dic.Add("body", model.productName); //商品描述
dic.Add("out_trade_no", model.orderNo); //商户订单号
dic.Add("total_fee", model.totalFee.ToString()); //总金额
dic.Add("spbill_create_ip", model.customerIP); //终端IP
dic.Add("notify_url", tradeType == EnumWePayTradeType.APP ? WepayConfig.WEPAY_APP_NOTIFY_URL : WepayConfig.WEPAY_WEB_NOTIFY_URL); //通知地址
dic.Add("trade_type", tradeType.ToString()); //交易类型
if (tradeType.Equals(EnumWePayTradeType.JSAPI))
{
dic.Add("openid", model.openId);
}
return(dic);
}
