Asp.NetCore CacheHelper汎用キャッシュヘルプクラス

using System;
using Microsoft.Extensions.Caching.Memory;
using System.Runtime;

namespace UFX.Tools
{
    public class CacheHelper
    {
        public static IMemoryCache _memoryCache= new MemoryCache(new MemoryCacheOptions());
        
        /// <summary>
        ///         
        /// </summary>
        ///<param name="key">Cache  </param>
        ///<param name="value"> Cache[key]   </param>
        ///<param name="minute">minute       </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>
        ///       ，       minute     
        /// </summary>
        ///<param name="key">Cache  </param>
        ///<param name="value"> Cache[key]   </param>
        ///<param name="minute">      </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>
        /// key  ， value  Cache[key].       ，         .
        /// </summary>
        ///<param name="key">Cache  </param>
        ///<param name="value"> Cache[key]   </param>
        public static void CacheInsert(string key, object value)
        {
            _memoryCache.Set(key, value);
        }

        /// <summary>
        ///  Cache[key]  
        /// </summary>
        ///<param name="key"></param>
        public static void CacheNull(string key)
        {
            _memoryCache.Remove(key);
        }

        /// <summary>
        ///  key ，  Cache[key]  
        /// </summary>
        ///<param name="key"></param>
        public static object CacheValue(string key)
        {
            return _memoryCache.Get(key);
        }

        #region     
        //public IActionResult Index()
        //{
        //    string cacheKey = "key";
        //    string result;
        //    if (!_memoryCache.TryGetValue(cacheKey, out result))
        //    {
        //        result = $"LineZero{DateTime.Now}";
        //        _memoryCache.Set(cacheKey, result);
        //        //        2  
        //        _memoryCache.Set(cacheKey, result, new MemoryCacheEntryOptions()
        //            .SetSlidingExpiration(TimeSpan.FromMinutes(2)));
        //        //        2  
        //        _memoryCache.Set(cacheKey, result, new MemoryCacheEntryOptions()
        //            .SetAbsoluteExpiration(TimeSpan.FromMinutes(2)));
        //        //    
        //        _memoryCache.Remove(cacheKey);
        //        //      （      ，          ）
        //        _memoryCache.Set(cacheKey, result, new MemoryCacheEntryOptions()
        //            .SetPriority(CacheItemPriority.NeverRemove));
        //        //     10      
        //        _memoryCache.Set(cacheKey, result, new MemoryCacheEntryOptions()
        //            .SetAbsoluteExpiration(TimeSpan.FromSeconds(10))
        //            .RegisterPostEvictionCallback((key, value, reason, substate) =>
        //            {
        //                Console.WriteLine($" {key} {value}  ，  {reason}");
        //            }));
        //        //       Token  
        //        var cts = new CancellationTokenSource();
        //        _memoryCache.Set(cacheKey, result, new MemoryCacheEntryOptions()
        //            .AddExpirationToken(new CancellationChangeToken(cts.Token))
        //            .RegisterPostEvictionCallback((key, value, reason, substate) =>
        //            {
        //                Console.WriteLine($" {key} {value}  ，  {reason}");
        //            }));
        //        cts.Cancel();
        //    }
        //    ViewBag.Cache = result;
        //    return View();
        //}
        #endregion
    }
}