接着文章介绍了J2EE体系架构以及其企业应用模型，并对J2EE架构中的核心组件EJB的结构、类型以及调用方式进行深入探讨。
And then introduces J2EE architecture and its enterprise application, moreover discusses the structure, type and invoking method of EJB which is the core component of J2EE.
接着文章介绍了J2EE体系架构以及其企业应用模型，并对J2EE架构中的核心组件EJB的结构、类型以及调用方式进行深入探讨。
And then introduces J2EE architecture and its enterprise application, moreover discusses the structure, type and invoking method of EJB which is the core component of J2EE.
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