面试重点：设计模式（三）——工厂方法

public interface ArticleDaoFactory {
    public ArticleDao build();
}

public class MybatisArticleDaoFactory implements  ArticleDaoFactory{
    @Override
    public ArticleDao build() {
        return new ArticleDaoForMybatislmpl();
    }
}

public class HibernateArticleDaoFactory implements ArticleDaoFactory{

    @Override
    public ArticleDao build() {
        return new  ArticleDaoForHibernatelmpl();
    }
}

 ArticleDao dao1=new MybatisArticleDaoFactory().build();