88 lines
2.7 KiB
C#
88 lines
2.7 KiB
C#
using Microsoft.Extensions.Caching.Memory;
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using System;
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using System.Collections.Generic;
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using System.Text;
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namespace Mini.Common
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{
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public class CacheHelper
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{
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public static IMemoryCache _memoryCache = new MemoryCache(new MemoryCacheOptions());
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/// <summary>
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/// 缓存绝对过期时间
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/// </summary>
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///<param name="key">Cache键值</param>
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///<param name="value">给Cache[key]赋的值</param>
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///<param name="minute">minute分钟后绝对过期</param>
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public static void CacheInsertAddMinutes(string key, object value, int minute)
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{
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if (value == null) return;
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_memoryCache.Set(key, value, new MemoryCacheEntryOptions()
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.SetAbsoluteExpiration(TimeSpan.FromMinutes(minute)));
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}
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/// <summary>
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/// 缓存相对过期，最后一次访问后minute分钟后过期
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/// </summary>
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///<param name="key">Cache键值</param>
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///<param name="value">给Cache[key]赋的值</param>
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///<param name="minute">滑动过期分钟</param>
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public static void CacheInsertFromMinutes(string key, object value, int minute)
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{
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if (value == null) return;
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_memoryCache.Set(key, value, new MemoryCacheEntryOptions()
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.SetSlidingExpiration(TimeSpan.FromMinutes(minute)));
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}
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/// <summary>
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///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.
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/// </summary>
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///<param name="key">Cache键值</param>
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///<param name="value">给Cache[key]赋的值</param>
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public static void Set(string key, object value)
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{
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_memoryCache.Set(key, value);
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}
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/// <summary>
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///清除Cache[key]的值
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/// </summary>
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///<param name="key"></param>
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public static void Remove(string key)
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{
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_memoryCache.Remove(key);
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}
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/// <summary>
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///根据key值，返回Cache[key]的值
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/// </summary>
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///<param name="key"></param>
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public static object CacheValue(string key)
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{
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return _memoryCache.Get(key);
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}
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/// <summary>
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/// 获取缓存
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/// </summary>
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/// <typeparam name="T">类型</typeparam>
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/// <param name="key">Key</param>
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/// <returns></returns>
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public static T Get<T>(string key)
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{
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try
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{
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T t = (T)_memoryCache.Get<T>(key);
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return t;
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}
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catch (Exception ex)
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{
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throw ex;
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}
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}
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}
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}
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