dataaccess.cs

开发环境:viual studio 2008 开发语言:C# 开源程度:100 在精心研究PetShop4.0 有几个月了,终于明白了三层的含义,将自己的项目改成三层架构开发,现在将此源程序

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using WiStudy.IDAL;
using System.Reflection;

namespace WiStudy.DALFactory
{
    public class DataAccess
    {
        private static readonly string path = System.Configuration.ConfigurationSettings.AppSettings["DAL"];

        public static IConfig CreateConfig()
        {
            string ClassName = path + ".Config";
            return (IConfig)Assembly.Load(path).CreateInstance(ClassName);
        }
        public static IUserSort CreateUserSort()
        {
            string ClassName = path + ".UserSort";
            return (IUserSort)Assembly.Load(path).CreateInstance(ClassName);
        }
        public static IUser CreateUser()
        {
            string ClassName = path + ".User";
            return (IUser)Assembly.Load(path).CreateInstance(ClassName);
        }
        public static IUserSafety CreateUserSafety()
        {
            string ClassName = path + ".UserSafety";
            return (IUserSafety)Assembly.Load(path).CreateInstance(ClassName);
        }
    }
}