基于J2EE的数据访问技术设计模式研究

Research on Design Pattern of Accessing Data Based on J2EE

该文对基于J2EE平台的EnterpriseJavaBeans(EJB)组件的运行机制进行了分析,提出了三种通过EJB进行数据访问的设计模式,通过一个典型应用实例对这三种设计模式的性能进行了测试,并对产生性能差异的原因进行了分析,提出了优化的数据访问设计模式。

This paper analyses the operating mechanism of EJB components based on J2EE,and presents three design patterns to access data using EJB.The performance differences among examples implemented separately by these pat-terns are illustrated.The reasons for the differences are also discussed,and then an optimized data-accessing pattern is presented.