Meanwhile, the technology of J2EE was introduced.The good property, extensibility and safeguard in the system were achieved using the technologies of triple-tiered design and object oriented database.

• 同时简要介绍了J2EE中企业开发的相关技术，并以三层设计的原则架构软件，结合面向对象数据库的相关技术，以使系统获得良好的性能、扩展性和维护性。