参考资料：long0801的博客、MemoryCache微软官方文档
添加对Microsoft.Extensions.Caching.Memory命名空间的引用，它提供了.NET Core默认实现的MemoryCache类，以及全新的内存缓存API
代码如下：
using System;
using Microsoft.Extensions.Caching.Memory; namespace FrameWork.Common.DotNetCache
{
public class CacheHelper
{
static readonly MemoryCache Cache = new MemoryCache(new MemoryCacheOptions()); /// <summary>
/// 获取缓存中的值
/// </summary>
/// <param name="key">键</param>
/// <returns>值</returns>
public static object GetCacheValue(string key)
{
if ( !string.IsNullOrEmpty(key) && Cache.TryGetValue(key, out var val))
{
return val;
}
return default(object);
} /// <summary>
/// 设置缓存
/// </summary>
/// <param name="key">键</param>
/// <param name="value">值</param>
public static void SetCacheValue(string key, object value)
{
if (!string.IsNullOrEmpty(key))
{
Cache.Set(key, value, new MemoryCacheEntryOptions
{
SlidingExpiration = TimeSpan.FromHours()
});
}
}
}
}