清除Cache缓存

/// <summary>
/// 清除所有Cache缓存
/// </summary>
public static void RemoveAllCache()
{
    try
    {
        Cache _cache = HttpRuntime.Cache;//获取当前运行程序的System.Web.Caching.Cache
        //枚举非泛型字典的元素
        IDictionaryEnumerator CacheEnum = _cache.GetEnumerator();//检索用于循环访问包含在缓存中的键设置及其值的字典枚举数
        while (CacheEnum.MoveNext())
        {
            string _key = CacheEnum.Key.ToString();
            _cache.Remove(_key);
        }
    }
    catch { }
}

/// <summary>
/// 移除缓存的对象
/// </summary>
public static object Remove(string key)
{
</span>//当前Cache对象
System.Web.Caching.Cache webCache = System.Web.HttpRuntime.Cache;

lock (CacheLocker)
{
<span style="white-space:pre">	</span>return webCache.Remove(key);
}

/// <summary>
/// 清除所有缓存
/// </summary>
public static void RemoveAll()
{
<span style="white-space:pre">	</span>//当前Cache对象           
<span style="white-space:pre">	</span>var cache = System.Web.HttpRuntime.Cache;
<span style="white-space:pre">	</span>foreach (DictionaryEntry de in cache)
<span style="white-space:pre">	</span>{
<span style="white-space:pre">		</span>string key = de.Key as string;
<span style="white-space:pre">		</span>cache.Remove(key);
<span style="white-space:pre">	</span>}
}

/// <summary>
/// 清除所有与Key相关的缓存
/// </summary>
public static void RemoveAllLike(string keypattern)
{
<span style="white-space:pre">	</span>//当前Cache对象           
<span style="white-space:pre">	</span>var cache = System.Web.HttpRuntime.Cache;
<span style="white-space:pre">	</span>foreach (DictionaryEntry de in cache)
<span style="white-space:pre">	</span>{
<span style="white-space:pre">		</span>string key = de.Key as string;
<span style="white-space:pre">		</span>if(key.Contains(keypattern))
<span style="white-space:pre">			</span>cache.Remove(key);
<span style="white-space:pre">	</span>}

/// <summary>
/// Cache插入锁
/// </summary>
private static object CacheLocker = new object();