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/// <summary> /// 建立缓存 /// </summary> public static object TryAddCache(string key, object value, CacheItemPriority priority) { if (HttpRuntime.Cache[key] == null && value != null) return HttpRuntime.Cache.Add(key, value, null, Cache.NoAbsoluteExpiration, Cache.NoSlidingExpiration, priority, null); else return null; } /// <summary> /// 建立定时不访问便移除的缓存 /// </summary> public static object TryAddCache(string key, object value, TimeSpan slidingExpiration, CacheItemPriority priority) { if (HttpRuntime.Cache[key] == null && value != null) return HttpRuntime.Cache.Add(key, value, null, Cache.NoAbsoluteExpiration, slidingExpiration, priority, null); else return null; } /// <summary> /// 建立缓存，并在移除时执行事件 /// </summary> public static object TryAddCache(string key, object value, DateTime absoluteExpiration, TimeSpan slidingExpiration, CacheItemPriority priority, CacheItemRemovedCallback onRemovedCallback) { if (HttpRuntime.Cache[key] == null && value != null) return HttpRuntime.Cache.Add(key, value, null, absoluteExpiration, slidingExpiration, priority, onRemovedCallback); else return null; } /// <summary> /// 移除缓存 /// </summary> public static object TryRemoveCache(string key) { if (HttpRuntime.Cache[key] != null) return HttpRuntime.Cache.Remove(key); else return null; } /// <summary> /// 移除键中带某关键字的缓存 /// </summary> public static void RemoveMultiCache(string keyInclude) { IDictionaryEnumerator CacheEnum = HttpRuntime.Cache.GetEnumerator(); while (CacheEnum.MoveNext()) { if (CacheEnum.Key.ToString().IndexOf(keyInclude.ToString()) >= 0) HttpRuntime.Cache.Remove(CacheEnum.Key.ToString()); } } /// <summary> /// 移除所有缓存 /// </summary> public static void RemoveAllCache() { IDictionaryEnumerator CacheEnum = HttpRuntime.Cache.GetEnumerator(); while (CacheEnum.MoveNext()) { HttpRuntime.Cache.Remove(CacheEnum.Key.ToString()); } }
using System;using System.Collections.Generic;using System.Text;using System.Collections;using System.Web;using System.Web.Caching;namespace BLL{ public class Caches { /// <summary> /// 建立缓存 /// </summary> public static object TryAddCache(string key, object value, CacheItemPriority priority) { if (HttpRuntime.Cache[key] == null && value != null) return HttpRuntime.Cache.Add(key, value, null, Cache.NoAbsoluteExpiration, Cache.NoSlidingExpiration, priority, null); else return null; } /// <summary> /// 建立定时不访问便移除的缓存 /// </summary> public static object TryAddCache(string key, object value, TimeSpan slidingExpiration, CacheItemPriority priority) { if (HttpRuntime.Cache[key] == null && value != null) return HttpRuntime.Cache.Add(key, value, null, Cache.NoAbsoluteExpiration, slidingExpiration, priority, null); else return null; } /// <summary> /// 建立缓存，并在移除时执行事件 /// </summary> public static object TryAddCache(string key, object value, DateTime absoluteExpiration, TimeSpan slidingExpiration, CacheItemPriority priority, CacheItemRemovedCallback onRemovedCallback) { if (HttpRuntime.Cache[key] == null && value != null) return HttpRuntime.Cache.Add(key, value, null, absoluteExpiration, slidingExpiration, priority, onRemovedCallback); else return null; } /// <summary> /// 移除缓存 /// </summary> public static object TryRemoveCache(string key) { if (HttpRuntime.Cache[key] != null) return HttpRuntime.Cache.Remove(key); else return null; } /// <summary> /// 移除键中带某关键字的缓存 /// </summary> public static void RemoveMultiCache(string keyInclude) { IDictionaryEnumerator CacheEnum = HttpRuntime.Cache.GetEnumerator(); while (CacheEnum.MoveNext()) { if (CacheEnum.Key.ToString().IndexOf(keyInclude.ToString()) >= 0) HttpRuntime.Cache.Remove(CacheEnum.Key.ToString()); } } /// <summary> /// 移除所有缓存 /// </summary> public static void RemoveAllCache() { IDictionaryEnumerator CacheEnum = HttpRuntime.Cache.GetEnumerator(); while (CacheEnum.MoveNext()) { HttpRuntime.Cache.Remove(CacheEnum.Key.ToString()); } } }}
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原文地址：http://www.cnblogs.com/shaoke123/p/5209276.html
