【作者】 李千目； 戚湧； 侯君；

【Author】 LI Qian-mu1,2, QI Yong2, HOU Jun2 (1. Department of Science and Technology Management, Nanjing University of Sci.&Tech., Nanjing, 210094; 2. State Key Lab of Computer Software and New Technology, Nanjing University, Nanjing, 210093; 3.Department of Computer Science and Technology, Nanjing University of Sci.&Tech., Nanjing, 210094)

【机构】 南京理工大学科技处科研管理与评价中心； 南京理工大学计算机科学与技术学院；

【摘要】 本文以科研竞争和科研管理为背景,分析了当前流行的分布式对象技术的特点和不足,根据WindowsDNA三层架构应用程序体系结构的思想,研究COM+提供的服务,提出了一种构建分布式应用程序的新架构——ADAP。这个架构给出了在分布式计算环境下开发应用程序的一种新的、灵活可行的解决方案。这种解决方案以DNA三层架构为基础,以网络技术和COM+为核心,从体系结构上把一个科研管理应用系统从逻辑上抽象成三个层次:表示层、业务逻辑层和数据服务层,并给出了以SOAP为工具,实现跨网络、跨系统、跨对象模型访问网络中其他应用程序组件的方法。对于局域网内在相同平台上开发的基于组件的应用程序,系统应用COM+直接实现应用程序的分布;而对于局域网内的异构平台上开发的基于组件的应用程序和局域网外的基于组件的应用程序,系统利用SOAP实现对它们的访问。更多还原

【Abstract】 By analyzing the advantages and disadvantages of popular distributed object technology, this paper introduces a new architecture to construct net-based distributed application program on the background of the science research information management, which is called COM+ based distributed application program. Basing on the Windows DNA’s three tied application program architecture and using the services provided by COM+, this architecture provides a new flexible and workable solution to develop net based application program under the distributed computing environment, logically this solution splits an application program into three abstract ties: express tie, business logic tie and data service tie. Using SOAP, this paper also presents a method to call components of programs on other networks, other systems and other object models. The system uses COM+ to distribute application program on the same platform on intranet, while it takes advantage of SOAP to call components on Network or different platform on intranet.更多还原