常用方法 简单缓存

using System.Runtime.Caching;

        /// <summary>
        /// 获取缓存数据
        /// </summary>
        /// <param name="key">key的规则 key_方法名_标识字段</param>
        public static object GetCache(string key)
        {
            ObjectCache cache = MemoryCache.Default;
            var value = cache[key];
            return value;
        }

        /// <summary>
        /// 缓存值
        /// </summary>
        /// <param name="key">键</param>
        /// <param name="value">值</param>
        /// <param name="ExpirationTime">过期时间</param>
        public static void SetCache(string key, object value, int ExpirationTime = 6000)
        {
            if (GetCache(key) != null)
            {
                return;
            }

            ObjectCache cache = MemoryCache.Default;
            CacheItemPolicy policy = new CacheItemPolicy
            {
                AbsoluteExpiration = new DateTimeOffset(DateTime.Now.AddSeconds(ExpirationTime))//设置过期时间
            };
            cache.Set(key, value, policy);
        }