缓存策略

        /// <summary>
        /// 加入当前对象到缓存中
        /// </summary>
        /// <param name="objId">对象的键值</param>
        /// <param name="o">缓存的对象</param>
        public virtual void AddObjectWith(string objId, object o)
        {
            if (objId == null || objId.Length == 0 || o == null)
            {
                return;
            }

            CacheItemRemovedCallback callBack = new CacheItemRemovedCallback(onRemove);

            webCache.Insert(objId, o, null, System.DateTime.Now.AddSeconds(TimeOut), Cache.NoSlidingExpiration, CacheItemPriority.High, callBack);
        }