/// <summary>
/// 支付前调用方法
/// </summary>
/// <param name="requestDto"></param>
/// <returns></returns>
public async Task <GetWeiXinPaymentBeforeResponseDto> GetPaymentBeforeAsync(string userId, GetWeiXinPaymentBeforeRequestDto requestDto)
{
//商品订单
string outTradeNo = $"GDSPDD_{GetRandomString(10, false, false, true, false, "")}{DateTime.Now.ToString("yyyyMMddHHmmss")}";
//交易流水
string TransactionNumber = $"GDJYLS_{GetRandomString(10, false, false, true, false, "")}{DateTime.Now.ToString("yyyyMMddHHmmss")}";
//随机字符串
string nonceStr = GetRandomString(16, false, true, true, false, string.Empty);
TransactionFlowingModel model = new TransactionFlowingModel();
model.Amount = 1;
model.OrgGuid = string.Empty;
model.CreatedBy = userId;
model.LastUpdatedBy = userId;
model.TransactionFlowingGuid = Guid.NewGuid().ToString("N");
model.OutTradeNo = outTradeNo;
model.TransactionNumber = TransactionNumber;
model.TransactionStatus = "WaitForPayment";
model.Channel = "微信支付";
UnifiedorderResult unifie = await UnifiedorderAsync(outTradeNo, nonceStr, requestDto);
if (unifie.IsReturnCodeSuccess())
{
model.ChannelNumber = unifie.prepay_id;
model.Insert();
GetWeiXinPaymentBeforeResponseDto result = new GetWeiXinPaymentBeforeResponseDto
{
appId = this.AppID,
nonceStr = nonceStr,
timeStamp = Convert.ToInt32(GetTimeSpan().TotalSeconds),
package = $"prepay_id={unifie.prepay_id}"
};
string sign = TenPayV3.GetJsPaySign(result.appId, result.timeStamp.ToString(), result.nonceStr, result.package, MerchantSecret, "MD5");
result.sign = sign;
result.signType = "MD5";
return(result);
}
else
{
}
return(null);
}
