c#自带缓存使用方法 c#移除清理缓存

/// <summary>
/// 获取数据缓存
/// </summary>
/// <param name="cachekey">键</param>
public static object getcache(string cachekey)
{
    system.web.caching.cache objcache = httpruntime.cache;
    return objcache[cachekey];
}
/// <summary>
/// 设置数据缓存
/// </summary>
public static void setcache(string cachekey, object objobject)
{
    system.web.caching.cache objcache = httpruntime.cache;
    objcache.insert(cachekey, objobject);
}
/// <summary>
/// 设置数据缓存
/// </summary>
public static void setcache(string cachekey, object objobject, timespan timeout)
{
    system.web.caching.cache objcache = httpruntime.cache;
    objcache.insert(cachekey, objobject, null, datetime.maxvalue, timeout, system.web.caching.cacheitempriority.notremovable, null);
}
/// <summary>
/// 设置数据缓存
/// </summary>
public static void setcache(string cachekey, object objobject, datetime absoluteexpiration, timespan slidingexpiration)
{
    system.web.caching.cache objcache = httpruntime.cache;
    objcache.insert(cachekey, objobject, null, absoluteexpiration, slidingexpiration);
}
/// <summary>
/// 移除指定数据缓存
/// </summary>
public static void removeallcache(string cachekey)
{
    system.web.caching.cache _cache = httpruntime.cache;
    _cache.remove(cachekey);
}
/// <summary>
/// 移除全部缓存
/// </summary>
public static void removeallcache()
{
    system.web.caching.cache _cache = httpruntime.cache;
    idictionaryenumerator cacheenum = _cache.getenumerator();
    while (cacheenum.movenext())
    {
_cache.remove(cacheenum.key.tostring());
    }
}