流域水环境风险评估预警系统中间件的设计与实现

The Design and Realization of the Middleware of Basin Water Environment Risk Assessment and Early Warning System

由于存储地理数据的数据库和表不同、字段异名同义并且数据类型不同,因而共享数据需要一个中间件。针对全国流域水环境的异构数据,开发一个数据共享平台中间件。该中间件旨在建立一种数据映射规则和编辑机制,屏蔽异构数据库之间的异构性,为用户提供异构数据库之间的流域水环境风险因子映射与查询功能,集成于水环境风险评估与预警系统。

Because the geographical data are stored in different table and database, the fields are with the same meaning but different names and the data types are different, sharing data requires a middleware. In view of the heterogeneous data of the national basin water environment, a data sharing platform middleware was developed. The middleware was aimed to establish a kind of data mapping rules and editing mechanism, to shield the heterogeneity between heterogeneous databases, provide the users with the software with mapping and query functions of the basin water environmental risk factors between heterogeneous databases, and integrate a system based on the water environment risk assessment and early warning.