public HttpResponseMessage SetDutyTime(dynamic obj)
        {
            HttpResponseMessage response = new HttpResponseMessage();

            var    employee  = JsonConvert.DeserializeObject(JsonObjectConverter.ObjectToJson(obj)) as JObject;
            string emp_id    = employee.GetValue("employee_id").ToString();
            string room_num  = employee.GetValue("clinic_num").ToString();
            string Monday    = employee.GetValue("Monday").ToString();
            string Tuesday   = employee.GetValue("Tuesday").ToString();
            string Wednesday = employee.GetValue("Wednesday").ToString();
            string Thursday  = employee.GetValue("Thursday").ToString();
            string Friday    = employee.GetValue("Friday").ToString();
            string Saturday  = employee.GetValue("Saturday").ToString();
            string Sunday    = employee.GetValue("Sunday").ToString();
            Duty   item      = new Duty(room_num, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday);

            // 插入数据
            try
            {
                ManagementHelper.SetDuty(item, emp_id);
            }
            catch (Exception e)
            {
                response.Content    = new StringContent(e.Message);
                response.StatusCode = HttpStatusCode.BadRequest;
            }
            // duty表生成id
            // 设置room_num
            // max_limit设置成随机数
            // 日期随便设置了 上下午。。。
            return(response);
        }