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Standardizing Java Persistence with the EJB3 Java Persistence API

阅读更多
      http://www.onjava.com/pub/a/onjava/2006/05/17/standardizing-with-ejb3-java-persistence-api.html
通过它可以理解到EJB3的持久化的操作是如此的方便,真正的POJO操作,真的减轻了程序员的负担,让程序员的精力都集中到业务逻辑中去.学习EJB3的难度也不算高,比起EJB2.0可以说一点都不难.EJB2.0最麻烦了,又要写配置描叙文件,写那多的接口,稍微一点错误就会让你晕很久的.不过我觉得你还是可以了解EJB2.0是怎样样子的,还要HIBERNATE是怎样子的,这样对你的理解会有很打的帮助的.^_^
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