缓存类

 /// <summary>
    /// CachePriceParamSetting类
    /// </summary>
    public class CachePriceParamSetting
    {
        /// <summary>
        /// 缓存参数集合
        /// </summary>
        private static List<MPriceParamSetting> priceParamSettingList = new List<MPriceParamSetting>();

        /// <summary>
        /// 缓存刷新时间
        /// </summary>
        private static int cacheIntervalTime = 5;

        /// <summary>
        /// 缓存时间
        /// </summary>
        private static DateTime cacheTime = DateTime.MinValue;

        /// <summary>
        /// 控制刷新时间time
        /// </summary>
        private static Timer timer = new Timer();

        /// <summary>
        /// timer是否开始
        /// </summary>
        private static bool timerStart = false;

        /// <summary>
        /// 锁
        /// </summary>
        private static object lockObj = new object();

        /// <summary>
        /// 构造函数
        /// </summary>
        public CachePriceParamSetting()
        {
            if (!timerStart)
            {
                // 首次 先初始化
                RefreshCache(true);
                timerStart = true;
                timer.Interval = cacheIntervalTime * 1000 * 60;
                timer.Enabled = true;
                timer.Elapsed += new ElapsedEventHandler(this.Timer_Elapsed);
            }
        }

        /// <summary>
        /// 刷新缓存
        /// </summary>
        /// <param name="mustRefresh">是否强制刷新缓存</param>
        public static void RefreshCache(bool mustRefresh)
        {
            if (null == priceParamSettingList || mustRefresh)
            {
                try
                {
                    JavaScriptSerializer serialize = new JavaScriptSerializer();
                    List<MPriceParamSetting> tempList = new List<MPriceParamSetting>();
                    lock (lockObj)
                    {
                        tempList = serialize.Deserialize<List<MPriceParamSetting>>(SupplyPriceBusinessBaseServiceHelper.GetAllPriceParamSettingJSON());
                        if (tempList != null)
                        {
                            priceParamSettingList = tempList;
                        }
                    }
                }
                catch (Exception ex)
                {
                    if (TrackIdManager.CurrentTrackID != null)
                    {
                        TrackIdManager.CurrentTrackID.ExceptionId = Guid.Empty;
                    }

                    AppException app = new AppException("999999", ex.Message, ex, null);
                    LogManager.Log.WriteException(app);
                }
            }
        }

        /// <summary>
        /// 获取规则和缓存列表
        /// </summary>
        /// <returns>缓存列表</returns>
        public List<MPriceParamSetting> GetPriceParamSettingListCache()
        {
            return priceParamSettingList;
        }

        /// <summary>
        /// 定时执行 刷新缓存
        /// </summary>
        /// <param name="obj">事件</param>
        /// <param name="e">对象</param>
        private void Timer_Elapsed(object obj, ElapsedEventArgs e)
        {
            RefreshCache(true);
        }
    }