SHJX_cod/SHJX.Service.Common/Extend/CancelCache.cs

using System;
using System.Collections.Generic;
using System.Runtime.Caching;

namespace SHJX.Service.Common.Extend
{
    public class CancelCache
    {
        private static readonly MemoryCache cache = new("CancelCache");
        /// <summary>
        /// 在缓存中新增数据
        /// </summary>
        /// <param name="errinfo"></param>
        public static void Set(string key, object value)
        {
            var policy = new CacheItemPolicy
            {
                AbsoluteExpiration = DateTime.Now.AddMinutes(15)
            };
            if (!Contains(key))
            {
                cache.Set(key, value, policy);
            }
            cache[key] = value;
        }
        /// <summary>
        /// 查询缓存中是否包含指定键
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public static bool Contains(string key)
        {
            return cache.Contains(key);
        }
        /// <summary>
        /// 获取缓存中数据
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public static string Get(string key)
        {
            try
            {
                if (Contains(key))
                {
                    return cache[key].ToString();
                }
                return null;
            }
            catch (Exception)
            {
                return null;
            }
        }
        /// <summary>
        /// 移除缓存中的数据
        /// </summary>
        /// <param name="key"></param>
        public static void Remove(string key)
        {
            if (Contains(key))
            {
                MemoryCache.Default.Remove(key);
            }
        }
    }
}