LocalCache

 public static class LocalCacheHelper
    {
        private const int TimeOut = 5; //5分鐘過時

        public static T GetCache<T>(string cacheKey)
        {
            var cache = GetCache(cacheKey);
            if (cache == null)
                return default(T);
            return (T)cache;
        }

        /// <summary>
        /// 獲取當前應用程序指定CacheKey的Cache對象值
        /// </summary>
        /// <param name="cacheKey">索引鍵值</param>
        /// <returns>返回緩存對象</returns>
        private static object GetCache(string cacheKey)
        {
            var objCache = HttpRuntime.Cache;
            return objCache == null ? null : objCache[cacheKey];
        }

        /// <summary>
        /// 設置緩存數據
        /// </summary>
        /// <param name="cacheKey">索引鍵值</param>
        /// <param name="objObject">緩存對象</param>
        public static void SetCache(string cacheKey, object objObject)
        {
            try
            {
                var objCache = HttpRuntime.Cache;
                objCache.Insert(cacheKey, objObject, null, DateTime.Now.AddMinutes(TimeOut), TimeSpan.Zero);
            }
            catch (Exception ex)
            {
                string message = string.Format("種本地緩存出錯，有效信息爲：cacheKey={0},objObject={1}", cacheKey, objObject.ToJson());
                CenteralLogManager.WriteException("種本地緩存出錯", new Exception(message, ex));
            }
        }

        /// <summary>
        /// 設置緩存數據
        /// </summary>
        /// <param name="cacheKey">索引鍵值</param>
        /// <param name="objObject">緩存對象</param>
        /// <param name="minutes">緩存時間，單位：分鐘</param>
        public static void SetCache(string cacheKey, object objObject, int minutes)
        {
            try
            {
                var objCache = HttpRuntime.Cache;
                objCache.Insert(cacheKey, objObject, null, DateTime.Now.AddMinutes(minutes), TimeSpan.Zero);
            }
            catch (Exception ex)
            {
                string message = string.Format("種本地緩存出錯，有效信息爲：cacheKey={0},objObject={1}", cacheKey, objObject.ToJson());
                CenteralLogManager.WriteException("種本地緩存出錯", new Exception(message, ex));
            }
        }
    }