Using the Oracle9i AS as the J2EE application server and EJB as the developing technology, this paper designs the data logic layer and business logic layer in the digital university, which is the application layer component in the digital university.

• 以Oracle9i AS作为数字化校园的J2EE应用服务器，以EJB组件技术为开发工具，设计了数字化校园中的数据逻辑层和业务逻辑层，这是数字化校园中的应用层部分。