C# Cache 設定緩存過期時間方法 絕對過期時間 和 相對過期時間(即:訪問激活后不過期)

摘自: http://www.cnblogs.com/zj1111184556/p/3493840.html

 

1. 設定絕對過期時間

/// <summary>
        /// 設定絕對的過期時間
        /// </summary>
        /// <param name="CacheKey"></param>
        /// <param name="objObject"></param>
        /// <param name="seconds">超過多少秒后過期</param>
        public static void SetCacheDateTime(string CacheKey, object objObject, long Seconds) 
        {
            System.Web.Caching.Cache objCache = HttpRuntime.Cache;
            objCache.Insert(CacheKey, objObject, null, System.DateTime.Now.AddSeconds(Seconds), TimeSpan.Zero);
        }

 

2.設定相對過期時間

/// <summary>
        /// 設置當前應用程序指定包含相對過期時間Cache值
        /// </summary>
        /// <param name="CacheKey"></param>
        /// <param name="objObject"></param>
        /// <param name="timeSpan">超過多少時間不調用就失效，單位是秒</param>
        public static void SetCacheTimeSpan(string CacheKey, object objObject,long timeSpan) 
        {
            System.Web.Caching.Cache objCache = HttpRuntime.Cache;
            objCache.Insert(CacheKey, objObject, null, DateTime.MaxValue, TimeSpan.FromSeconds(timeSpan));
        }