private void CallBackMethod(IAsyncResult ar)
{
try
{
GenerateQRDel del = (GenerateQRDel)ar.AsyncState;
del.EndInvoke(ar);
}
catch (Exception)
{
}
}
public ActionResult Exchange(string exchangeCode)
{
// 先判断传递进来的 兑换商品的编号是否为空
if (string.IsNullOrEmpty(exchangeCode))
{
// 为空 就返回 Fasle
return(Json("False", JsonRequestBehavior.AllowGet));
}
// 再获取当前用户的对象
Member member = _memberBLL.GetMemberByOpenId(System.Web.HttpContext.Current.Session["member"].ToString());
// 对象的空值判断
if (member == null)
{
return(Json("False", JsonRequestBehavior.AllowGet));
}
ExchangeService es = _exchangeServiceBLL.GetNoDeletedExchangeServiceByCode(exchangeCode);
if (es == null)
{
return(Json("False", JsonRequestBehavior.AllowGet));
}
if (es.Credit >= member.Credit)
{
return(Json("False", JsonRequestBehavior.AllowGet));
}
// 构造兑换服务记录
ExchangeServiceRecord esr = new ExchangeServiceRecord();
esr.Id = Guid.NewGuid();
esr.IsDeleted = false;
esr.IsUse = false;
esr.MemberId = member.Id;
esr.CreatedTime = DateTime.Now;
esr.Credit = es.Credit;
esr.DeletedTime = DateTime.MinValue.AddHours(8);
esr.ExchangeSerivceId = es.Id;
// 兑换服务的二维码 先空出来 因为要异步生成二维码
// 等生成之后再 补充
esr.QRPath = "hehe";
if (_exchangeServiceRecordBLL.Add(esr))
{
// 如果添加兑换服务成功 则 扣除当前积分
ConsumeCreditDel conDel = new ConsumeCreditDel(ConsumeCredit);
IAsyncResult consumeResult = conDel.BeginInvoke(member.Id, esr.Credit, CreditCallBackMethod, null);
// 如果兑换服务记录表更新成功 则 异步生成二维码
GenerateQRDel del = new GenerateQRDel(GenerateQR);
IAsyncResult result = del.BeginInvoke(esr.Id, member.Id, CallBackMethod, null);
}
else
{
return(Json("False", JsonRequestBehavior.AllowGet));
}
return(Json("True", JsonRequestBehavior.AllowGet));
}
