App_Code/Comm/Factory.cs

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using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;


namespace Com
{
    /// <summary>
    /// 单件生成业务处理
    /// </summary>
    public class Factory
    {
        //private static Bs_ProductBLL _productBLL = null;
        private static Bs_UserBLL _userBLL = null;
        private static Bs_OrderBLL _orderBLL = null;
        private static Bs_NewsBLL _newsBLL = null;
        private static Bs_ProBLL _proBLL = null;
        private static Bs_AdBLL _adBLL = null;
        public static Bs_AdBLL getAdBllInstance()
        {
            if (_adBLL == null)
            {
                _adBLL = new Bs_AdBLL();
            }
            return _adBLL;
        }
        public static Bs_ProBLL getProBllInstance()
        {
            if (_proBLL == null)
            {
                _proBLL = new Bs_ProBLL();
            }
            return _proBLL;
        }
        //public static Bs_ProductBLL getProBllInstance()
        //{
        //    if (_productBLL == null)
        //    {
        //        _productBLL = new Bs_ProductBLL();
        //    }
        //    return _productBLL;
        //}

        public static Bs_UserBLL getUserBllInstance()
        {
            if (_userBLL == null)
            {
                _userBLL = new Bs_UserBLL();
            }
            return _userBLL;
        }

        public static Bs_OrderBLL getOrderBllInstance()
        {