/// <summary>
/// 获取支付二维码
/// </summary>
/// <param name="orderId">订单Id</param>
/// <param name="voucherIds">支付使用的优惠券Id</param>
/// <param name="paytype">支付渠道（支付宝、微信）</param>
/// <returns></returns>
public JsonResult GetWechatPayQR(int orderId = 0, int[] voucherIds = null, int paytype = 1)
{
int studentId = 0;
string ip = "";
//当前登录用户
LoginInfo studentInfo = GetCurrentUser();
if (studentInfo != null)
{
studentId = studentInfo.StudentId;
ip = studentInfo.LastLoginIP;
}
StudentOrderBll studentOrderBll = new StudentOrderBll();
DtoPreOrderPay response = studentOrderBll.PreOrderPay(orderId, studentId, voucherIds, ip, paytype);
return(Json(new JsonResponse <dynamic>
{
State = response.State,
ErrorCode = 0,
ErrorMsg = response.ErrorMsg,
Data = new
{
QR = response.Base64Img,
IsFreeOrder = response.IsFreeOrder
}
}, JsonRequestBehavior.AllowGet));
}
public DtoPreOrderPay PreOrderPay(int orderId, int studentId, int[] voucherIds, string ip, int paytype)
{
DtoPreOrderPay response = new DtoPreOrderPay();
DtoSelectCenterOrderResult courseOrderResult = GetOrderInfoForPayment(studentId, orderId);
if (courseOrderResult.OrderStatus.Equals((int)StudentOrderStatus.待支付) || courseOrderResult.OrderStatus.Equals((int)StudentOrderStatus.支付中))
{
//查询用户是否已购买此课程
var oriOrder = GetFinishOrder(studentId, courseOrderResult.CourseId);
if (oriOrder != null && oriOrder.Yod_Id > 0)
{
//已购买，不再生成付款码
response.State = false;
response.ErrorMsg = "你已购买此课程。";
}
else
{
if (CashPayTypeEnum.微信.Equals((CashPayTypeEnum)paytype))
{
//支付二维码图片
byte[] qrImage = null;
bool isFreeOrder = false;
bool unifiedOrderResult = WechatOrderPay(orderId, studentId, voucherIds, ip, ref qrImage, ref isFreeOrder);
response.State = true;
response.IsFreeOrder = isFreeOrder;
if (unifiedOrderResult)
{
response.Base64Img = Convert.ToBase64String(qrImage);
}
else if (!isFreeOrder)
{
throw new AbhsException(ErrorCodeEnum.WechatPrePayError, AbhsErrorMsg.ConstWechatPrePayError);
}
}
else
{
throw new AbhsException(ErrorCodeEnum.PayTypeError, AbhsErrorMsg.PayTypeError);
}
}
}
else if (courseOrderResult.OrderStatus.Equals((int)StudentOrderStatus.已支付))
{
response.State = false;
response.ErrorMsg = "此订单已支付。";
}
else
{
response.State = false;
response.ErrorMsg = "此订单已超时。";
}
return response;
}
