JPA(Java Persistence API)作为Java EE 5.0平台标准的ORM规范，将得到所有Java EE服务器的支持。Sun这次吸取了之前EJB规范惨痛失败的经历，在充分吸收现有ORM框架的基础上，得到了一个易于使用、伸缩性强的ORM规范。从目前的开发社区的反应上看，JPA受到了极大的支持和赞扬，JPA作为ORM领域标准化整合者的目标应该不难实现。-JPA (Java Persistence API) as a platform for Java EE 5.0 standard ORM norms, will receive all the support of Java EE servers. The Sun has learned from the failure before the EJB specification painful experience, in the full absorption of the existing fr a mework based on the ORM has been a easy to use, scalability and strong ORM norms. Judging from the current development of the community s response point of view, JPA has been tremendous support and praise, JPA as ORM field of standardization of the integration of those goals should not be difficult to achieve.