COM组件技术在数据传输中的应用

Application of COM Technology in Data Transmission of Network

论述了利用 COM组件技术解决网络数据传输中两个难题 :对异构数据库的数据访问操作以及保证网络数据传输具有安全性、可靠性和实时性 .通过 COM组件技术对数据库操作进行封装 ,从而实现对异构数据库的屏蔽 ,满足了代码一致性的要求 ;另外 ,利用 COM组件技术 ,使用UDP传输协议 ,将数据传输的实现封装在 COM组件中 ,使得各工作站间能够调用统一的传输算法 。

The paper discusses the two problems that are difficultly solved in data transmission of network: one is the data access of heterogeneous distributed database; the other one is the realization of reliable and real time transmission when transmitting data efficiently. Through appropriate using technology, they can be solved easily. The operations on database are encapsulated by COM component to shield the heterogeneous distributed database, reaching the code consistency. Moreover, realization of security, reliability and real time data transmission are encapsulated by COM component, and making the same transmission algorithm among the different workstations .