Abstract: According to low efficiency in network database accessing in unreliable military communication system, this paper proposes the database access model based on distributed component. The clients reduces accessing database times through caching data, and the database server administrates the connection with clients using distributed component, then notifies clients updating data, which can reduce the data traffic in the network. Estimational result proves that the efficiency in the application system can be improved.

Key words: distributed component, attachable object, database access model, unreliable network, data cache

摘要： 针对不可靠军事通信应用系统中网络数据库访问效率低的问题，提出一种基于分布式组件的数据库访问模型。在该模型中，客户端通过数据缓存减少对服务器数据库的读取次数，服务器端使用分布式组件管理客户端连接，并在数据发生变化时主动将更新通知到客户端，以减少网络上传输的数据流量。估算结果表明，该模型可有效提高应用系统的效率。

关键词: 分布式组件, 可连接对象, 数据库访问模型, 不可靠网络, 数据缓存

CLC Number: 

• TP391.1