基于CORBA的移动代理系统的研究与实现

【作者】 苏畅；

【导师】 张育平；

【作者基本信息】 南京航空航天大学 ， 计算机应用技术， 2003， 硕士

【摘要】 移动代理是90年代中期刚刚兴起的一种分布式计算模型，目的是使程序的执行尽可能靠近数据，降低网络通讯开销，节省带宽，平衡负载，加快任务的执行，从而提高分布式系统的处理效率。CORBA技术是当前流行的日渐成熟的分布式计算技术，主要用来解决分布式异构系统互操作的问题。作者结合这两者的优势，遵照MASIF规范，使用Java语言研究设计了一个移动代理系统原型：CONCO-MA。 本文介绍了移动代理技术及与之关系密切的CORBA服务，在此基础上提出了CONCO-MA系统的整体架构。文章给出了CONCO-MA系统的命名定位机制，以此为基础研究了移动代理系统的两大核心技术：代理迁移机制和代理通讯机制，并给出了CONCO-MA系统中对应的迁移模型和通讯模型。最后，作者提供了移动代理在电子商务领域的应用实例，说明移动代理系统的应用方案与前景。更多还原

【Abstract】 Mobile Agent is a kind of distributed computing model proposed in the middle of 1990s. By migrating between network nodes,the agent can be physically located to the needed data,so the communication cost is brought down,the network bands saved,the load balanced and the performance of the whole system improved. CORBA Technology is widely used in distributed computing to solve the problem of interoperability between heterogeneous systems. To make advantage of the two technologies,we designed a Mobile Agent System called CONCO-MA conforming to MASIF Specification,using the programming languange Java.This Paper discusses the mobile agent technology and the CORBA services which are in deep connection with mobile agent technology. This Paper puts forward the Naming and Locating Mechanism of CONCO-MA on the base of which we research on the core technology of a mobile agent system:the Agent Transfer Mechanism and the Agent Communication Mechanism,then we bring forward the corresponding models in CONCO-MA. Last,by providing an e-commerce example,we describe the Mobile Agent System’ s applicative plan and prospect.更多还原