private Result EditTag(HttpContext context)
        {
            string      value = context.Request["obj"];
            LinkTagInfo obj   = JsonConvert.DeserializeObject <LinkTagInfo>(value);

            obj.AppStoreUrlEncode();
            bool result = false;

            if (obj.ID == 0)
            {
                result = LinkTagLog_DataAccess.Instance.AddTag(obj);
            }
            else
            {
                result = LinkTagLog_DataAccess.Instance.UpdateTag(obj);
            }
            if (result)
            {
                // 刷新缓存
                UpdateCache(obj);
                return(Result.GetSuccessedResult(null, true));
            }
            else
            {
                return(Result.GetFailedResult("保存失败!"));
            }
        }