public class DataCache

    {

        /// <summary>

        /// 获取当前应用程序指定CacheKey的Cache值

        /// </summary>

        /// <param name="CacheKey"></param>

        /// <returns></returns>

        public static object GetCache(string CacheKey)

        {

            System.Web.Caching.Cache objCache = HttpRuntime.Cache;

            return objCache[CacheKey];

        }

        /// <summary>

        /// 设置当前应用程序指定CacheKey的Cache值

        /// </summary>

        /// <param name="CacheKey"></param>

        /// <param name="objObject"></param>

        public static void SetCache(string CacheKey, object objObject)

        {

            System.Web.Caching.Cache objCache = HttpRuntime.Cache;

            objCache.Insert(CacheKey, objObject);

        }

        /// <summary>

        /// 移除指定数据缓存

        /// </summary>

        public static void RemoveCache(string CacheKey)

        {

            System.Web.Caching.Cache objCache = HttpRuntime.Cache;

            objCache.Remove(CacheKey);

        }

        /// <summary>

        /// 清空所有的Cache

        /// </summary>

        public static void RemoveAllCache()

        {

            List<string> cacheKeys = new List<string>();

            IDictionaryEnumerator cacheEnum = HttpContext.Current.Cache.GetEnumerator();

            while (cacheEnum.MoveNext())

            {

                cacheKeys.Add(cacheEnum.Key.ToString());

            }

            foreach (string cacheKey in cacheKeys)

            {

                HttpContext.Current.Cache.Remove(cacheKey);

            }

        }

    }