标签：
一、大致结构
1、抽象产品类
2、抽象工厂类
3、具体工厂类
4、具体产品类
5、静态工厂类
二、代码(模拟买东西送东西的场景)
1、抽象产品类
MainProduct.java
package com.abstractfactory; public abstract class MainProduct { public abstract void setName(String name); public abstract String getName(); }
FreeProduct.java
package com.abstractfactory; public abstract class FreeProduct { public abstract void setName(String name); public abstract String getName(); }
2、抽象工厂类
AbstractFactory.java
package com.abstractfactory; public abstract class AbstractFactory { public abstract MainProduct createMainProduct(); public abstract FreeProduct createFreeProduct(); }
3、具体产品类
Computer.java
package com.abstractfactory; /** * 电脑，附赠品是鼠标垫 * @author may * */ public class Computer extends MainProduct { private String name; @Override public void setName(String name) { this.name = name; } @Override public String getName() { return this.name; } }
Mousepad.java
package com.abstractfactory; /** * 鼠标垫，电脑的附赠品 * @author may * */ public class Mousepad extends FreeProduct { private String name; @Override public void setName(String name) { this.name = name; } @Override public String getName() { return this.name; } }
Barbecue.java
package com.abstractfactory; /** * 烧烤，附赠品是水 * @author may * */ public class Barbecue extends MainProduct { private String name; @Override public void setName(String name) { this.name = name; } @Override public String getName() { return this.name; } }
Water.java
package com.abstractfactory; public class Water extends FreeProduct { //品牌名 private String name; @Override public void setName(String name) { this.name = name; } @Override public String getName() { return this.name; } }
4、具体工厂类
BarbecueFactory.java
package com.abstractfactory; /** * 买烧烤，送水 * @author may * */ public class BarbecueFactory extends AbstractFactory { @Override public MainProduct createMainProduct() { return new Barbecue() ; } @Override public FreeProduct createFreeProduct() { return new Water(); } }
ComputerFactory.java
package com.abstractfactory; /** * 买台电脑，送鼠标垫 * @author may * */ public class ComputerFactory extends AbstractFactory { @Override public MainProduct createMainProduct() { return new Computer(); } @Override public FreeProduct createFreeProduct() { return new Mousepad(); } }
5、配置文件
FactoryList.properties
ComputerFactory=com.abstractfactory.ComputerFactory
BarbecueFactory=com.abstractfactory.BarbecueFactory
6、加载配置类
PropertiesUtil.java
package com.abstractfactory; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; import java.util.Properties; public class PropertiesUtil { private static Properties props = null; static { props = new Properties(); try { props.load(PropertiesUtil.class.getResourceAsStream("/FactoryList.properties")); } catch (IOException e) { e.printStackTrace(); } } public static String getProperty(String name) { return props.getProperty(name); } public static void getFactoryList() { BufferedReader in; try { in = new BufferedReader(new InputStreamReader( PropertiesUtil.class.getResourceAsStream("/FactoryList.properties"), "utf-8")); String line = in.readLine(); while (line != null) { line = line.substring(0, line.indexOf("=")); System.out.println(line); line = in.readLine(); } } catch (IOException e) { e.printStackTrace(); } } }
7、静态工厂类
CreateFactory.java
package com.abstractfactory; public class CreateFactory { public static AbstractFactory createFactory(String name) { String className = PropertiesUtil.getProperty(name); AbstractFactory factory = null; try { factory = (AbstractFactory) Class.forName(className).newInstance(); } catch (Exception e) { e.printStackTrace(); } return factory; } }
8、测试类
Customer.java
package com.abstractfactory; public class Customer { public static void main(String[] args) { AbstractFactory factory = CreateFactory.createFactory("ComputerFactory"); MainProduct mainProduct = factory.createMainProduct(); mainProduct.setName("华硕笔记本电脑"); FreeProduct freeProduct = factory.createFreeProduct(); freeProduct.setName("超级鼠标垫"); System.out.println("你购买了" + mainProduct.getName() + "附赠你" + freeProduct.getName() + "一个"); } }
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原文地址：http://www.cnblogs.com/honger/p/5961857.html
