public ServiceAccesssResp GetResp(ServiceAccesssReq req)
        {
            if (req != null)
            {
                ServiceAccesssReqBody body = null;
                ServiceAccesssReqHead head = null;
                foreach (var item in req.Items)
                {
                    if (item != null && item is ServiceAccesssReqBody)
                        body = item as ServiceAccesssReqBody;
                    else if (item != null && item is ServiceAccesssReqHead)
                        head = item as ServiceAccesssReqHead;
                }

                using (Aspirecn.Entities.Cssp.CsspEntitiesContainer entities
                     = new CsspEntitiesContainer())
                {
                    ServiceAccessReqEntity reqEntity = AddRequestRecords(body, head, entities);
                    Aspirecn.Entities.Cssp.ServiceAccessRespEntity resp
                        = AddResponseRecords(body, head, entities, reqEntity);

                    entities.ServiceAccessReqEntities.Add(reqEntity);

                    entities.SaveChanges();
                    return this.ConvertToResponse(resp, req, head, body);
                }
            }

            return null;
        }
        private Aspirecn.Entities.Cssp.ServiceAccessRespEntity AddResponseRecords(
            ServiceAccesssReqBody body,
            ServiceAccesssReqHead head, CsspEntitiesContainer entities,
            ServiceAccessReqEntity reqEntity)
        {
            int tranID = this.GenerateRandomNumber();
            string orderpushid = this.GenerateOrderPushIDStr(tranID);

            Aspirecn.Entities.Cssp.ServiceAccessRespEntity resp =
                new ServiceAccessRespEntity()
                {
                    Head = new RespHead()
                    {
                        Dest_Address =
                            reqEntity.Head.Dest_Address,
                        Send_Address = reqEntity.Head.Send_Address,
                        Version = "1.0.0",
                        TransactionID = tranID.ToString()
                    },
                    Body = new ResponseType()
                        {
                            Price = "0.01",
                            RetCode = "0",
                            SPID = reqEntity.Body.Request.SPID,
                            SPServiceID = reqEntity.Body.Request.SPServiceID,
                            OrderID = orderpushid,
                            PushID = orderpushid
                        },
                    // ServiceAccessReqEntity = reqEntity
                };
            //resp.ServiceAccessReqEntity = reqEntity;
            //reqEntity.ServiceAccessRespEntity = resp;
            //entities.ServiceAccessRespEntities.Add(resp);

            return resp;
        }