C#设计模式系列 9 ----Facade外观模式之--天河城购物

   1.理论定义

        外观模式   把  分散的子系统,集合成一个系统,提供一站式服务。

   2.应用举例

          需求描述: 聂小倩 和 宁采臣是一对小富则安 的聊斋夫妻。住在比较偏远的小乡村。

                         今天,两人初次来到大城市广州,听说天河城提供一站式服务,不像小城市那样,买个东西  得  东奔西跑。

                         在一个地方,就可以买到 自己想要的衣服,电脑,鞋子,Iphone,还可以看大片,

                         吃冰淇淋,吃真功夫,买化妆品,珠宝首饰。天河城,果然是一宝地啊。

                         Ok,边走边看。      

   3.具体编码

          1.阿迪达斯

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;



namespace Com.Design.Gof.Facade

{

   /// <summary>

   /// 阿迪达斯

   /// </summary>

    public  class Adidas

    {

        public void Serivce(string something) {

            Console.WriteLine("在阿迪达斯购买了: "+something);

        }

    }

}

     2.飞扬影城

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;



namespace Com.Design.Gof.Facade

{

    /// <summary>

    /// 飞扬影城

    /// </summary>

    public  class FeiYangMovie

    {

        public void Serivce(string something)

        {

            Console.WriteLine("在飞扬影城看了一部电影: " + something);

        }

    }

}

3.国美电器

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;



namespace Com.Design.Gof.Facade

{

    /// <summary>

    /// 国美电器

    /// </summary>

    public class GoMe

    {

        public void Serivce(string something)

        {

            Console.WriteLine("在国美电器 买了: " + something);

        }

    }

}

4.哈根达斯

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;



namespace Com.Design.Gof.Facade

{

    /// <summary>

    /// 哈根达斯

    /// </summary>

    public class HaagenDaz

    {

        public void Serivce(string something)

        {

            Console.WriteLine("在哈根达斯 买了: " + something);

        }

    }

}

5.真功夫

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;



namespace Com.Design.Gof.Facade

{

    /// <summary>

    /// 真功夫

    /// </summary>

    public class KungFu

    {

        public void Serivce(string something)

        {

            Console.WriteLine("在真功夫 吃了: " + something);

        }

    }

}

6.六福珠宝

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;



namespace Com.Design.Gof.Facade

{

    /// <summary>

    /// 六福珠宝

    /// </summary>

    public class LukFook

    {

        public void Serivce(string something)

        {

            Console.WriteLine("在六福珠宝 买了: " + something);

        }

    }

}

7.耐克

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;



namespace Com.Design.Gof.Facade

{

    /// <summary>

    /// 耐克

    /// </summary>

    public class NIKE

    {

        public void Serivce(string something)

        {

            Console.WriteLine("在耐克店 买了: " + something);

        }

    }

}

8.ONLY

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;



namespace Com.Design.Gof.Facade

{

    /// <summary>

    /// ONLY时装

    /// </summary>

    public class ONLY

    {

        public void Serivce(string something)

        {

            Console.WriteLine("在ONLY时装 买了: " + something);

        }

    }

}

9.苏宁电器

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;



namespace Com.Design.Gof.Facade

{

    /// <summary>

    /// 苏宁电器

    /// </summary>

    public class Suning

    {

        public void Serivce(string something)

        {

            Console.WriteLine("在苏宁电器 买了: " + something);

        }

    }

}

10.Veromoda国际时装品牌

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;



namespace Com.Design.Gof.Facade

{

    /// <summary>

    /// Veromoda国际时装品牌

    /// </summary>

    public class Veromoda

    {

        public void Serivce(string something)

        {

            Console.WriteLine(something);

        }

    }

}

 

11.消费者

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;



namespace Com.Design.Gof.Facade

{

    /// <summary>

    /// 消费店子

    /// </summary>

    public enum ShopOption

    {

        Adidas = 1, DKNY = 2, GoMe = 3,

        NIKE = 4, Suning = 5, Veromoda = 6,

        FeiYangMovie = 7, HaagenDaz = 8, LukFook = 9, KungFu = 10

    }

    /// <summary>

    /// 消费单

    /// </summary>

    public class Bill {

        /// <summary>

        /// 要去的消费店

        /// </summary>

        public ShopOption Item { get; set; }

        /// <summary>

        /// 去这个店要买啥

        /// </summary>

        public string Something { get; set; }

    }

    public class Consumer

    {

        /// <summary>

        /// 消费单

        /// </summary>

        public IList<Bill> Items { get; set; }

        /// <summary> 
/// 姓名
/// </summary>
public string Name { get; set; } } }

12.天河城---一站式服务

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Reflection;

namespace Com.Design.Gof.Facade

{

   /// <summary>

   /// 天河城

   /// </summary>

    public class TeeMall

    {

        private static readonly Assembly assembly = Assembly.LoadFile(AppDomain.CurrentDomain.BaseDirectory + @"\Com.Design.Gof.dll");

        /// <summary>

        /// 一站式服务

        /// </summary>

        /// <param name="consumer"></param>

        public void OfferService(Consumer consumer) {

            Console.WriteLine("我是: " + consumer.Name+",不差钱,今天来天河城玩: ");

            Console.WriteLine("----------------------------------------------");

            foreach (Bill item in consumer.Items)

            {

               object obj= assembly.CreateInstance("Com.Design.Gof.Facade." + item.Item);

               MethodInfo info =  obj.GetType().GetMethod("Serivce");

               info.Invoke(obj, new object[] { item.Something });

            }

            Console.WriteLine();

        }

    }

}

13.主函数调用

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using Com.Design.Gof.Facade;

namespace Com.Design.Gof.Test

{

    class Program

    {

        

        static void Main(string[] args)

        {

            //天河城购物中心

            TeeMall TeeMall = new TeeMall();



            //消费者 1

            Consumer consumer = new Consumer

            {  

                Name="聂小倩",

                //消费单

                Items = new  List<Bill> { 

                  new Bill{ Item=ShopOption.Adidas, Something="运动服"},

                  new Bill{ Item=ShopOption.GoMe, Something="苹果IPhone智能手机"},

                  new Bill{ Item=ShopOption.FeiYangMovie, Something="<冰河世纪 4>"},

                  new Bill{ Item=ShopOption.KungFu, Something="香菇炖鸡"},

                    new Bill{ Item=ShopOption.LukFook, Something="金项链"},

                }

            };



            TeeMall.OfferService(consumer);

           //消费者 2

           consumer = new Consumer

           {

               Name = "宁采臣",

               //消费单

               Items = new List<Bill> { 

                  new Bill{ Item=ShopOption.FeiYangMovie, Something="《太空一号》"},

                  new Bill{ Item=ShopOption.Veromoda, Something="然后去了Veromoda时装,买了一套服装"},

                  new Bill{ Item=ShopOption.HaagenDaz, Something="买了一雪糕"},

                  new Bill{ Item=ShopOption.Suning, Something="在苏宁看买平板电脑"},

                } 

           };

           TeeMall.OfferService(consumer);

           Console.ReadKey();

        }



    }

}

14.运行结果

C#设计模式系列 9 ----Facade外观模式之--天河城购物

15.总结

  天河城 TeeMall 理论上应该包括 所有 商场的引用,

  这里用反射 避免了这一动作。

  附件里面包括了程序源码。

  这里是附件下载(Download)

你可能感兴趣的:(Facade)