.NET缓存类和说明
2012-04-05 09:00:38 来源：WEB开发网核心提示：/// <param name="jibie">缓存级别，级别高到低存放内存数据（NotRemovable = 6，.NET缓存类和说明(3)，High = 5,AboveNormal = 4,Normal = 3,BelowNormal = 2,Low = 1）</param&g
/// <param name="jibie">缓存级别，级别高到低存放内存数据（NotRemovable = 6，High = 5,AboveNormal = 4,Normal = 3,BelowNormal = 2,Low = 1）</param>
public static void InsertSlidingCache(string CacheKey, object o, int expire,int jibie)
{
if (CacheKey == null || CacheKey.Length == 0 || o == null)
{
return;
}
CacheItemPriority dareje;
switch (jibie)
{
case 1: dareje = CacheItemPriority.Low; break;
case 2: dareje = CacheItemPriority.BelowNormal; break;
case 3: dareje = CacheItemPriority.Normal; break;
case 4: dareje = CacheItemPriority.AboveNormal; break;
case 5: dareje = CacheItemPriority.High; break;
case 6: dareje = CacheItemPriority.NotRemovable; break;
default: dareje = CacheItemPriority.Normal; break;
}
webCache.Insert(CacheKey, o, null, Cache.NoAbsoluteExpiration, TimeSpan.FromSeconds(expire), dareje, null);
}
/********************************************绝对过期的缓存*****************************************************************/
/*
*
* 使用绝对过期的缓存的意思是在缓存创建后过了absoluteExpiration时间后缓存过期
* 用绝对过期的缓存slidingExpiration参数要设置TimeSpan.Zero，TimeSpan.Zero是0的意思
* 也就是说没时间偏差
* static Cache()
{
NoAbsoluteExpiration = DateTime.MaxValue;
NoSlidingExpiration = TimeSpan.Zero;
s_sentinelRemovedCallback = new CacheItemRemovedCallback(SentinelEntry.OnCacheItemRemovedCallback);
}
*/
// <summary>
/// 使用绝对过期的缓存中加入当前对象（过了expire时间后缓存过期)
/// </summary>
/// <param name="CacheKey">对象的键值</param>
/// <param name="o">缓存的对象</param>
/// <param name="expire">到期时间,单位:秒(0时最大的时间，高的级别，表示永不过期）</param>
/// <param name="jibie">缓存级别（NotRemovable = 6，High = 5,AboveNormal = 4,Normal = 3,BelowNormal = 2,Low = 1）</param>
public virtual void InsertAbsoluteCache(string CacheKey, object o, int expire,int jibie)
{
if (CacheKey == null || CacheKey.Length == 0 || o == null)
{
return;
}
CacheItemPriority dareje;
switch (jibie)
{
case 1: dareje = CacheItemPriority.Low; break;
case 2: dareje = CacheItemPriority.BelowNormal; break;
case 3: dareje = CacheItemPriority.Normal; break;
case 4: dareje = CacheItemPriority.AboveNormal; break;
case 5: dareje = CacheItemPriority.High; break;
case 6: dareje = CacheItemPriority.NotRemovable; break;
default:dareje = CacheItemPriority.Normal; break;
}
webCache.Insert(CacheKey, o, null, DateTime.Now.AddSeconds(expire), Cache.NoSlidingExpiration, dareje, null);
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