基于EJB3的Web服务下的电子政务结构模型的研究  

Research on E-government Based on EJB3 of Web Service

作　　者：刘元[1] 李灿丽[1] 

机构地区：[1]贵州大学电子科学与信息技术学院,硕士研究生贵阳550003

出　　处：《微型电脑应用》2007年第6期17-21,共5页Microcomputer Applications

摘　　要：电子政务是当今信息化的发展趋势。本文首先阐述了我国在发展电子政务中所遇到的一些问题,而Web服务正是为解决现有的问题。Web服务是构建SOA的一种方式。它能够将各种异构应用集成起来,并组成更大的分布式应用,最后通过服务接口的形式进行连接和支撑。提出可以将Web服务架构划分为基础概念层、逻辑分析层和应用物理层三个层次的模型,并分别讨论了模型的具体内容。并在具体实现中,提出基于EJB3的两套解决方案,对开发Web服务组件既可以根据需求全新开发,又可以将已有的、相互间独立的内部系统的核心功能继承利用。通过整合这些功能完成新的业务需求,这样便能最大程度地利用现有资源,降低开发成本。E-government is the development trend of the present informationization. This article explained the current problems in the development of the E - government in China. The main aim of Web service is to establish a platform and language independent tier, so the applications on different platforms can exchange and integrate with each other. The paper presented that the models of Web services can be categorized in three types: conceptual model, logical model and physical model, and then discussed the contents of each model. The paper put forward two schemas to solve this problem based on EJB3, which is either to develop a brand -new Web service components according to the demands, or to reuse the core functions of the existed mutually independent internal system. Through the integration of these functions to meet the demands of new business, the existed resources can be maximally used and the development cost can be reduced.

关 键 词：电子政务 WEB服务 SOA 架构 EJB3 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]