基于COM/DCOM的多层分布式应用

Application of Multilayer Distributing Model Based on COM/DCOM

分析COM/DCOM组件技术的结构和基本特点,分析基于DCOM的多层应用实现的过程。COM/DCOM是Microsoft提出的主流组件体系,COM提供一套允许同一台计算机上的客户端和服务器之间进行通信的接口,DCOM是组件技术COM的无缝扩展,可以将基于COM的应用、组件、工具以及知识转移到标准化的分布式计算领域中,当做分布式计算时,DCOM用于处理网络协议的低层次的细节问题。给出的实例对基于COM/DCOM的多层分布式模型进行了具体应用,并取得较好效果。

The paper analyzes the construction and basic characters of COM/DCOM component technology, and also analyzes the procedure that base on the DCOM＇s multilayer application. COM/DCOM is a mainstream discreteness system which Microsoft Corporation advanced,COM provids a set of interface that allow client- side and server- side in a computer to communicate. DCOM is the extend of COM,the application,components,tools and knowledge based on the COM can be migrated to the area of standard distributing calculation. DCOM can be used to deal with the details of the low layer in the network protocol. The presented example which based on the COM/DCOM multilayer distributing model gets good effect in the application.