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BlogCoreMemoryCache.cs
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68 lines (63 loc) · 2.1 KB
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using System;
using System.Collections.Generic;
using System.Text;
using Microsoft.Extensions.Caching.Memory;
namespace Blog.Core.AuthHelper
{
public class RayPIMemoryCache
{
public static MemoryCache _cache = new MemoryCache(new MemoryCacheOptions());
/// <summary>
/// 验证缓存项是否存在
/// </summary>
/// <param name="key">缓存Key</param>
/// <returns></returns>
public static bool Exists(string key)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
object cached;
return _cache.TryGetValue(key, out cached);
}
/// <summary>
/// 获取缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <returns></returns>
public static object Get(string key)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
return _cache.Get(key);
}
/// <summary>
/// 添加缓存
/// </summary>
/// <param name="key">缓存Key</param>
/// <param name="value">缓存Value</param>
/// <param name="expiresSliding">滑动过期时长（如果在过期时间内有操作，则以当前时间点延长过期时间）</param>
/// <param name="expiressAbsoulte">绝对过期时长</param>
/// <returns></returns>
public static bool AddMemoryCache(string key, object value, TimeSpan expiresSliding, TimeSpan expiressAbsoulte)
{
if (key == null)
{
throw new ArgumentNullException(nameof(key));
}
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
_cache.Set(key, value,
new MemoryCacheEntryOptions()
.SetSlidingExpiration(expiresSliding)
.SetAbsoluteExpiration(expiressAbsoulte)
);
return Exists(key);
}
}
}