C# Cache 设定过期时间的方法

1. 设定绝对过期时间

 1    /// <summary>
 2         /// 设定绝对的过期时间
 3         /// </summary>
 4         /// <param name="CacheKey"></param>
 5         /// <param name="objObject"></param>
 6         /// <param name="seconds">超过多少秒后过期</param>
 7         public static void SetCacheDateTime(string CacheKey, object objObject, long Seconds) 
 8         {
 9             System.Web.Caching.Cache objCache = HttpRuntime.Cache;
10             objCache.Insert(CacheKey, objObject, null, System.DateTime.Now.AddSeconds(Seconds), TimeSpan.Zero);
11         }

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2.设定相对过期时间

 1 /// <summary>
 2         /// 设置当前应用程序指定包含相对过期时间Cache值
 3         /// </summary>
 4         /// <param name="CacheKey"></param>
 5         /// <param name="objObject"></param>
 6         /// <param name="timeSpan">超过多少时间不调用就失效，单位是秒</param>
 7         public static void SetCacheTimeSpan(string CacheKey, object objObject,long timeSpan) 
 8         {
 9             System.Web.Caching.Cache objCache = HttpRuntime.Cache;
10             objCache.Insert(CacheKey, objObject, null, DateTime.MaxValue, TimeSpan.FromSeconds(timeSpan));
11         }

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