【Core2.0帮助类】
缓存帮助类(CacheHelper)
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/// <summary> /// 缓存帮助类 /// </summary> public class CacheHelper {//下载:Microsoft.Extensions.Caching.Memory; public static IMemoryCache _memoryCache = new MemoryCache(new MemoryCacheOptions()); /// <summary> /// 缓存绝对过期时间 /// </summary> ///<param name="key">Cache键值</param> ///<param name="value">给Cache[key]赋的值</param> ///<param name="minute">minute分钟后绝对过期</param> public static void CacheInsertAddMinutes(string key, object value, int minute) { if (value == null) return; _memoryCache.Set(key, value, new MemoryCacheEntryOptions() .SetAbsoluteExpiration(TimeSpan.FromMinutes(minute))); } /// <summary> /// 缓存相对过期,最后一次访问后minute分钟后过期 /// </summary> ///<param name="key">Cache键值</param> ///<param name="value">给Cache[key]赋的值</param> ///<param name="minute">滑动过期分钟</param> public static void CacheInsertFromMinutes(string key, object value, int minute) { if (value == null) return; _memoryCache.Set(key, value, new MemoryCacheEntryOptions() .SetSlidingExpiration(TimeSpan.FromMinutes(minute))); } /// <summary> ///以key键值,把value赋给Cache[key].如果不主动清空,会一直保存在内存中. /// </summary> ///<param name="key">Cache键值</param> ///<param name="value">给Cache[key]赋的值</param> public static void CacheInsert(string key, object value) { _memoryCache.Set(key, value); } /// <summary> ///清除Cache[key]的值 /// </summary> ///<param name="key"></param> public static void CacheNull(string key) { _memoryCache.Remove(key); } /// <summary> ///根据key值,返回Cache[key]的值 /// </summary> ///<param name="key"></param> public static object CacheValue(string key) { return _memoryCache.Get(key); } }
作者:一个大西瓜
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