【摘要】 在基于J2EE的项目开发过程中,数据持久层的设计一直是重点和难点。在对比几种解决方案的基础上,介绍了实现数据持久层的一种新技术JDO,对它的特点、体系结构进行了讨论,并通过一个实例说明了JDO的开发过程。实践证明,与其他技术相比,该技术大大提高了数据持久层设计的效率。更多还原

【Abstract】 The design of data persistence layer is always important and difficult under J2EE development environment.On the basis of analysis on several solutions,this paper introduces JDO and discusses its characteristics and architecture.Then it makes an example on how to develop JDO.In contrast with other techniques,JDO can greatly improve the efficiency of the design of data persistence layer.更多还原