spring LocalSessionFactoryBean变换为hibernate 的sessionfactory

2012-08-08
spring LocalSessionFactoryBean转换为hibernate 的sessionfactory问：org.springframework.orm.hibernate3
spring LocalSessionFactoryBean转换为hibernate 的sessionfactory
<br></p><p>问：</p>org.springframework.orm.hibernate3.LocalSessionFactoryBean; <br style="color:rgb(75,75,75); font-family:Verdana,Geneva,Arial,Helvetica,sans-serif; font-size:13px; line-height:19px">这个类型根本没有getCurrentSession的方法。 <br style="color:rgb(75,75,75); font-family:Verdana,Geneva,Arial,Helvetica,sans-serif; font-size:13px; line-height:19px">而productDAO中的sessionFactory是org.hibernate.SessionFactory，这中间的类型是怎么转换的啊？ <br style="color:rgb(75,75,75); font-family:Verdana,Geneva,Arial,Helvetica,sans-serif; font-size:13px; line-height:19px">试了一下往数据库保存是成功的，就是想不通这个类型的转换，我看LocalSessionFactoryBean也没有实现SessionFactory这个接口啊? <br style="color:rgb(75,75,75); font-family:Verdana,Geneva,Arial,Helvetica,sans-serif; font-size:13px; line-height:19px">难道是LocalSessionFactoryBean的getObject()方法? <br style="color:rgb(75,75,75); font-family:Verdana,Geneva,Arial,Helvetica,sans-serif; font-size:13px; line-height:19px"><br style="color:rgb(75,75,75); font-family:Verdana,Geneva,Arial,Helvetica,sans-serif; font-size:13px; line-height:19px">答：<br style="color:rgb(75,75,75); font-family:Verdana,Geneva,Arial,Helvetica,sans-serif; font-size:13px; line-height:19px">正是如此!LocalSessionFactoryBean实现了org.springframework.beans.factory.FactoryBean接口, spring在装配的时候, 如果发现实现了org.springframework.beans.factory.FactoryBean接口, 就会使用FactoryBean#getObject() 方法返回的对象装配,具体的可以看下文档. <br style="color:rgb(75,75,75); font-family:Verdana,Geneva,Arial,Helvetica,sans-serif; font-size:13px; line-height:19px">如果你想拿到LocalSessionFactoryBean实例, 在id前面加个'&'就可以了,在你的配置文件中BeanFactory.getBean('&sessionFactory')拿到的就是LocalSessionFactoryBean的实例. </p><div class="aged2"><script type="text/javascript">a("article_content_down");</script></div>
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spring LocalSessionFactoryBean变换为hibernate 的sessionfactory
