【摘要】 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。更多还原

【Abstract】 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.更多还原