11.1每日总结

实验4：抽象工厂模式

本次实验属于模仿型实验，通过本次实验学生将掌握以下内容：

1、理解抽象工厂模式的动机，掌握该模式的结构；

2、能够利用抽象工厂模式解决实际问题。

[实验任务一]：人与肤色

使用抽象工厂模式，完成下述产品等级结构：

实验要求：

1.画出对应的类图；

2.提交源代码；

3.注意编程规范。

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package test4;
 
public class BlackFactory implements MWFactory
{
    public Man produceMan()
    {
        return new BlackSkinMan();
    }
 
    public Woman produceWomen()
    {
        return new BlackSkinWomen();
    }
}
 
 
package test4;
 
public class BlackSkinMan implements Man
{
    public void play()
    {
        System.out.println("我是黑种男人!");
    }
}
 
 
package test4;
 
public class BlackSkinWomen implements Woman
{
    public void play()
    {
        System.out.println("我是黑种女人!");
    }
}
 
 
package test4;
 
public class Client
{
    public static void main(String args[])
    {
        try
        {
            MWFactory factory;
            Man m;
            Woman w;
            factory=(MWFactory)XMLUtil.getBean();
            m=factory.produceMan();
            m.play();
            w=factory.produceWomen();
            w.play();
        }
        catch(Exception e)
        {
            System.out.println(e.getMessage());
        }
    }
}
 
 
package test4;
 
public interface Man
{
    public void play();
}
 
 
package test4;
 
public interface MWFactory
{
    public Man produceMan();
    public Woman produceWomen();
}
 
 
package test4;
 
public class WhiteFactory implements MWFactory
{
    public Man produceMan()
    {
        return new WhiteSkinMan();
    }
 
    public Woman produceWomen()
    {
        return new WhiteSkinWomen();
    }
}
 
 
package test4;
 
public class WhiteSkinMan implements Man{
    public void play()
    {
        System.out.println("我是白种男人!");
    }
}
 
 
package test4;
 
public class WhiteSkinWomen implements Woman{
    public void play()
    {
        System.out.println("我是白种女人!");
    }
}
 
 
package test4;
 
public interface Woman
{
    public void play();
}
 
 
package test4;
 
import javax.xml.parsers.*;
import org.w3c.dom.*;
import org.xml.sax.SAXException;
import java.io.*;
public class XMLUtil
{
    //该方法用于从XML配置文件中提取具体类类名，并返回一个实例对象
    public static Object getBean()
    {
        try
        {
            //创建文档对象
            DocumentBuilderFactory dFactory = DocumentBuilderFactory.newInstance();
            DocumentBuilder builder = dFactory.newDocumentBuilder();
            Document doc;
            doc = builder.parse(new File("Cainiao.iml"));
 
            //获取包含类名的文本节点
            NodeList nl = doc.getElementsByTagName("className");
            Node classNode=nl.item(0).getFirstChild();
            String cName=classNode.getNodeValue();
 
            //通过类名生成实例对象并将其返回
            Class c=Class.forName(cName);
            Object obj=c.newInstance();
            return obj;
        }
        catch(Exception e)
        {
            e.printStackTrace();
            return null;
        }
    }
}
 
 
package test4;
 
public class YellowFactory {
 
        public Man produceMan()
        {
            return new YellowSkinMan();
        }
 
        public Woman produceWomen()
        {
            return new YellowSkinWomen();
        }
    }
 
 
package test4;
 
public class YellowSkinMan implements Man{
    public void play()
    {
        System.out.println("我是黄种男人!");
    }
}
 
 
package test4;
 
public class YellowSkinWomen implements Woman{
    public void play()
    {
        System.out.println("我是黄种女人!");
    }
}