/// <summary>
    /// 数据库提供者（DAL层应用）
    /// </summary>
    public static class DatabaseProvider
    {
        //连接字符串列表 <key,connectionString>
        private static Dictionary<string, string> _ConnectionString = new Dictionary<string, string>();

        //活动数据库列表 <key,IDatabase>
        private static Dictionary<string, IDatabase> _ActivedDBs = new Dictionary<string, IDatabase>();

        //静态构造器
        static DatabaseProvider()
        {
            InitConnection(Globals.IsTestMode);
        }

        public static void InitConnection(bool isTest)
        {
            _ConnectionString.Clear();

                //系统数据库
                _ConnectionString["MiniSystem"] = "Server=121.79.28.39;Database=CSFramework_Mini;User ID=test;Password=123456.";

                //账套数据库
                _ConnectionString["GTDB8120"] = "Server=121.79.28.39;Database=GTDB8;User ID=test;Password=123456.";
                _ConnectionString["C_bei120"] = "Server=121.79.28.39;Database=C_bei;User ID=test;Password=123456.";
                _ConnectionString["gSales"] = "Server=121.79.28.39;Database=gSales;User ID=test;Password=123456.";
                _ConnectionString["C_bei110"] = "Server=121.79.28.39;Database=C_bei110;User ID=test;Password=qifan123456.";
          
        }

        /// <summary>
        /// 获取活动状态的数据库
        /// </summary>
        /// <param name="DBID">账套编号</param>
        /// <returns></returns>
        public static IDatabase GetDatabase(DBIDs DBID)
        {
            //使用缓存的IDatabase实例
            if (!_ActivedDBs.ContainsKey(DBID.ToString()))
            {
                IDatabase db = DatabaseFactory.CreateSqlDatabase(_ConnectionString[DBID.ToString()]);//OK
                _ActivedDBs.Add(DBID.ToString(), db);
            }

            return _ActivedDBs[DBID.ToString()];
        }
    }