public JsonResult AddGateWay([System.Web.Http.FromBody] iot_gateway model)
        {
            if (util.IsExist(0, model.MAC))
            {
                return(Json(new { status = StatusCode.FAIL, meassage = "网关MAC地址已被使用" }));
            }
            //网关的基本信息
            iot_gateway gatway = new iot_gateway
            {
                MAC        = model.MAC,
                Name       = model.Name,
                CreateTime = new DateTime(),
                EditTIme   = null
            };

            db.iot_gateway.Add(gatway);

            var taskinfo = new { status = StatusCode.SUCCESS, message = "添加成功" };
            int uprows   = db.SaveChanges();

            if (uprows < 1)
            {
                taskinfo = new { status = StatusCode.FAIL, message = "添加失败" };
            }

            return(Json(taskinfo, JsonRequestBehavior.AllowGet));
        }