设计模式-抽象工厂方法

除了洗衣服,这次加上看电视的功能了

1.洗衣服有IWash接口和两个实现类

2.看电视也有ITv接口和两个实现类

3.工厂方面首先是一个工厂接口,然后定义一个实现类,通过读取xml文件反射生成类,这样以后洗衣服和看电视具体实现改变时无须修改工厂类,只需要修改xml文件

java代码如下

beans.xml

<?xml version="1.0" encoding="UTF-8"?>	<beans>		<bean id="滚筒洗衣机" class="com.liu.pattern3.GTWasher"></bean>		<bean id="波轮洗衣机" class="com.liu.pattern3.BLWasher"></bean>		<bean id="国产电视" class="com.liu.pattern3.GCTv"></bean>		<bean id="进口电视" class="com.liu.pattern3.JKTv"></bean>	</beans>
IFactory
package com.liu.pattern3;//抽象工厂public interface IFactory {	public IWasher createWasher(String name);	public ITv createTv(String name);}
MyFactory
package com.liu.pattern3;public class MyFactory implements IFactory {	PRivate ClassPathXmlLoader loader = new ClassPathXmlLoader();		@Override	public IWasher createWasher(String name) {		return (IWasher)loader.getBean(name);	}	@Override	public ITv createTv(String name) {		return (ITv)loader.getBean(name);	}}
ClassPathXmlLoader
package com.liu.pattern3;import java.io.IOException;import java.util.HashMap;import java.util.List;import org.jdom2.Document;import org.jdom2.Element;import org.jdom2.JDOMException;import org.jdom2.input.SAXBuilder;public class ClassPathXmlLoader {	private HashMap<String,Object> beans;		public Object getBean(String name){		return beans.get(name);	}		public ClassPathXmlLoader(){		//Load xml File		SAXBuilder builder = new SAXBuilder();		beans = new HashMap<String, Object>();		try {			Document doc = builder.build(this.getClass().getClassLoader().getResourceAsStream("beans.xml"));			Element root = doc.getRootElement();			List<Element> list = root.getChildren("bean");			for(int i=0;i<list.size();i++){				Element bean = list.get(i);				String id = bean.getAttributeValue("id");				String name = bean.getAttributeValue("class");				Object o = Class.forName(name).newInstance();				beans.put(id,o);			}		} catch (Exception e) {			e.printStackTrace();		}	}}
IWasher
package com.liu.pattern3;public interface IWasher {	public void wash();}
BLWasher
package com.liu.pattern3;public class BLWasher implements IWasher {	@Override	public void wash() {		System.out.println("波轮洗衣机洗衣服了");	}}
GTWasher
package com.liu.pattern3;public class GTWasher implements IWasher {	@Override	public void wash() {		System.out.println("滚筒洗衣机洗衣服了");	}}
ITv
package com.liu.pattern3;public interface ITv {	public void see();}
JKTv
package com.liu.pattern3;public class JKTv implements ITv {	@Override	public void see() {		System.out.println("看进口电视");	}}
GCTv
package com.liu.pattern3;public class GCTv implements ITv {	@Override	public void see() {				System.out.println("看国产电视");	}}
Test
package com.liu.pattern3;public class Test {	public static void main(String[] args) {		IFactory factory = new MyFactory();		IWasher washer = factory.createWasher("波轮洗衣机");		washer.wash();		ITv tv = factory.createTv("国产电视");		tv.see();	}}
 
C#实现代码
using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;using System.Xml;using System.Collections;using System.Reflection;namespace com.liu.pattern3{    public class ClassPathXmlLoader {        private Hashtable beans;        public ClassPathXmlLoader(){            beans = new Hashtable();            XmlDocument xmlDoc = new XmlDocument();            xmlDoc.Load("beans.xml");            XmlNode root = xmlDoc.SelectSingleNode("beans");            XmlNodeList list = root.SelectNodes("bean");            for (int i = 0; i < list.Count; i++) {                XmlNode node = list.Item(i);                String id = node.Attributes["id"].Value;                String name = node.Attributes["class"].Value;                Object o = Assembly.Load("AbstractFactory").CreateInstance(name);                beans.Add(id, o);            }        }        public Object GetBean(String name){            return beans[name];        }    }    public interface IWasher    {        void Wash();    }    public class GTWasher : IWasher    {        public void Wash()        {            System.Console.WriteLine("滚筒洗衣机洗衣服了");        }    }    public class BLWasher : IWasher    {        public void Wash()        {            System.Console.WriteLine("波轮洗衣机洗衣服了");        }    }    public interface ITv    {        void See();    }    public class GCTv:ITv {        public void See() {            System.Console.WriteLine("看国产电视");        }    }    public class JKTv:ITv    {        public void See()        {            System.Console.WriteLine("看进口电视");        }    }    public interface IFactory    {        IWasher CreateWasher(String name);        ITv CreateTv(String name);    }    public class MyFactory : IFactory {        private ClassPathXmlLoader loader = new ClassPathXmlLoader();                public IWasher CreateWasher(String name) {            return (IWasher)loader.GetBean(name);        }        public ITv CreateTv(String name)        {            return (ITv)loader.GetBean(name);        }    }    class Test    {        static void Main(string[] args)        {            MyFactory factory = new MyFactory();            IWasher washer = factory.CreateWasher("滚筒洗衣机");            washer.Wash();            ITv tv = factory.CreateTv("进口电视");            tv.See();            System.Console.ReadKey();        }    }}