// JObject here is very very important...
        public ActionResult <string> Post2([FromBody] JObject entityObj)
        {
            //声明要插入的对象
            ABD_INTEGRATE_SEAL_MST postedEntity = entityObj.ToObject <ABD_INTEGRATE_SEAL_MST>();
            //获取表格中已有的数据
            var orderListEntity = myContext.ABD_INTEGRATE_SEAL_MST.Where(d => d.ID.ToString() != null);

            if (!String.IsNullOrEmpty(postedEntity.ID.ToString()))                      //修改已有数据
            {
                orderListEntity = orderListEntity.Where(d => d.ID.Equals(postedEntity.ID));
            }

            if (orderListEntity.Count() == 0)                     //如果表中没有任何数据,则插入新数据
            {
                // INSERT
                myContext.ABD_INTEGRATE_SEAL_MST.Add(postedEntity);
                myContext.SaveChanges();
                return("");
            }
            else                      //如果表中有数据,则插入新数据
            {
                orderListEntity.First().MOVABLE_RING = postedEntity.MOVABLE_RING;
                orderListEntity.First().STATIC_RING  = postedEntity.STATIC_RING;
                orderListEntity.First().METAL_BASE   = postedEntity.METAL_BASE;
                orderListEntity.First().O_TYPE_RING  = postedEntity.O_TYPE_RING;
                orderListEntity.First().SPRING       = postedEntity.SPRING;
                orderListEntity.First().METAL_BASE   = postedEntity.METAL_BASE;
                orderListEntity.First().O_TYPE_RING  = postedEntity.O_TYPE_RING;
                myContext.SaveChanges();
                return("");
            }
        }
        public ActionResult <string> Delete(string ID)
        {
            Boolean isSuccess = true;
            string  data      = "Delete success";

            if (!String.IsNullOrEmpty(ID))
            {
                String[] ID_LIST = ID.Split(",");

                foreach (string RESULTS_ITEM in ID_LIST)
                {
                    ABD_INTEGRATE_SEAL_MST delMstEntity = new ABD_INTEGRATE_SEAL_MST()
                    {
                        ID = Convert.ToInt32(RESULTS_ITEM)
                    };
                    if (delMstEntity.Equals(null))
                    {
                        isSuccess = false;
                        data      = "No such data.";
                        break;
                    }
                    else
                    {
                        // FIND DB ITEM
                        myContext.ABD_INTEGRATE_SEAL_MST.Attach(delMstEntity);
                        // DELETE DB ITEM
                        var delRes = myContext.ABD_INTEGRATE_SEAL_MST.Remove(delMstEntity);
                        if (delRes.State == EntityState.Deleted)
                        {
                            // SAVE CHANGES AND DO NOT RETURN
                            myContext.SaveChanges();
                        }
                        else
                        {
                            isSuccess = false;
                            data      = "No such data.";
                            break;
                        }
                    }
                }
            }
            else
            {
                isSuccess = false;
                data      = "No such data.";
            }
            JsonRes res = new JsonRes
            {
                isSuccess = isSuccess,
                data      = data
            };

            return(JsonConvert.SerializeObject(res));
        }