设计模式学习笔记--抽象工厂模式

using System;

namespace AbstractFactory
{
    /// <summary> 
    /// 作者：bzyzhang
    /// 时间：2016/5/28 10:23:20 
    /// 博客地址：http://www.cnblogs.com/bzyzhang/
    /// User说明：本代码版权归bzyzhang所有，使用时必须带上bzyzhang博客地址 
    /// </summary> 
    public class User
    {
        private int id;

        public int Id
        {
            get { return id; }
            set { id = value; }
        }

        private string name;

        public string Name
        {
            get { return name; }
            set { name = value; }
        }
    }
}

using System;

namespace AbstractFactory
{
    /// <summary> 
    /// 作者：bzyzhang
    /// 时间：2016/5/28 10:38:21 
    /// 博客地址：http://www.cnblogs.com/bzyzhang/
    /// Department说明：本代码版权归bzyzhang所有，使用时必须带上bzyzhang博客地址 
    /// </summary> 
    public class Department
    {
        private int id;

        public int Id
        {
            get { return id; }
            set { id = value; }
        }

        private string departmentName;

        public string DepartmentName
        {
            get { return departmentName; }
            set { departmentName = value; }
        }
    }
}

namespace AbstractFactory
{
    public interface IUser
    {
        void Insert(User user);
        User GetUser(int id);
    }
}

namespace AbstractFactory
{
    public interface IDepartment
    {
        void Insert(Department department);
        Department GetDepartment(int id);
    }
}

using System;

namespace AbstractFactory
{
    /// <summary> 
    /// 作者：bzyzhang
    /// 时间：2016/5/28 11:23:53 
    /// 博客地址：http://www.cnblogs.com/bzyzhang/
    /// SqlServerUser说明：本代码版权归bzyzhang所有，使用时必须带上bzyzhang博客地址 
    /// </summary> 
    public class SqlServerUser:IUser
    {
        public void Insert(User user)
        {
            Console.WriteLine("在SQL Server中给User表增加了一条记录");
        }

        public User GetUser(int id)
        {
            Console.WriteLine("在SQL Server中根据ID得到User表一条记录");
            return null;
        }
    }
}

using System;

namespace AbstractFactory
{
    /// <summary> 
    /// 作者：bzyzhang
    /// 时间：2016/5/28 10:40:10 
    /// 博客地址：http://www.cnblogs.com/bzyzhang/
    /// SqlServerDepartment说明：本代码版权归bzyzhang所有，使用时必须带上bzyzhang博客地址 
    /// </summary> 
    public class SqlServerDepartment:IDepartment
    {
        public void Insert(Department department)
        {
            Console.WriteLine("在SQL Server中给Department表增加了一条记录");
        }

        public Department GetDepartment(int id)
        {
            Console.WriteLine("在SQL Server中根据ID得到Department表一条记录");
            return null;
        }
    }
}

using System;

namespace AbstractFactory
{
    /// <summary> 
    /// 作者：bzyzhang
    /// 时间：2016/5/28 10:30:42 
    /// 博客地址：http://www.cnblogs.com/bzyzhang/
    /// AccessUser说明：本代码版权归bzyzhang所有，使用时必须带上bzyzhang博客地址 
    /// </summary> 
    public class AccessUser:IUser
    {
        public void Insert(User user)
        {
            Console.WriteLine("在Access中给User表增加了一条记录");
        }

        public User GetUser(int id)
        {
            Console.WriteLine("在Access中根据ID得到User表一条记录");
            return null;
        }
    }
}

using System;

namespace AbstractFactory
{
    /// <summary> 
    /// 作者：bzyzhang
    /// 时间：2016/5/28 10:41:39 
    /// 博客地址：http://www.cnblogs.com/bzyzhang/
    /// AccessDepartment说明：本代码版权归bzyzhang所有，使用时必须带上bzyzhang博客地址 
    /// </summary> 
    public class AccessDepartment:IDepartment
    {
        public void Insert(Department department)
        {
            Console.WriteLine("在Access中给Department表增加了一条记录");
        }

        public Department GetDepartment(int id)
        {
            Console.WriteLine("在Access中根据ID得到Department表一条记录");
            return null;
        }
    }
}

using System;
using System.Reflection;
using System.Configuration;

namespace AbstractFactory
{
    /// <summary> 
    /// 作者：bzyzhang
    /// 时间：2016/5/28 10:52:18 
    /// 博客地址：http://www.cnblogs.com/bzyzhang/
    /// DataAccess说明：本代码版权归bzyzhang所有，使用时必须带上bzyzhang博客地址 
    /// </summary> 
    public class DataAccess
    {
        private static readonly string AssemblyName = "AbstractFactory";
        //private static readonly string db = "SqlServer";
        private static readonly string db = ConfigurationManager.AppSettings["DB"];

        public static IUser CreateUser()
        {
            string className = AssemblyName + "." + db + "User";
            return (IUser)Assembly.Load(AssemblyName).CreateInstance(className);
        }

        public static IDepartment CreateDepartment()
        {
            string className = AssemblyName + "." + db + "Department";
            return (IDepartment)Assembly.Load(AssemblyName).CreateInstance(className);
        }
    }
}

namespace AbstractFactory
{
    class Program
    {
        static void Main(string[] args)
        {
            User user = new User();
            Department dept = new Department();

            IUser iu = DataAccess.CreateUser();
            iu.Insert(user);
            iu.GetUser(1);

            IDepartment id = DataAccess.CreateDepartment();
            id.Insert(dept);
            id.GetDepartment(1);
        }
    }
}

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
  </startup>
  <appSettings>
    <add key="DB" value="SqlServer"/>
  </appSettings>
</configuration>