基于元数据的江苏省水利数据资源目录服务系统

Metadata based directory service system for hydraulic data resource in Jiangsu Province

随着江苏省水利信息化建设进程加快,各个水利部门积累了海量的数据资源,如何实现跨部门跨平台的异构数据资源的整合与共享,成为当前迫切需要解决的问题。在研究元数据模型的基础上,提出了基于三级元数据的水利数据资源目录服务系统。系统运用J2EE技术、基于web服务方式设计并实现动态可配置的水利数据资源目录,包含数据目录定制、元数据录入、数据下载、数据查询和访问统计等功能。

With the acceleration of water information construction process in Jiangsu, various water resources departments have accumulated huge amounts of data resources. How to integrate and share heterogeneous data resources across departments and platforms has become an urgent problem to solve now. In this paper, a hydraulic data resource directory service system based on three level metadata was proposed based on the research of metadata model. The system used J2 EE technology and web service mode to design and implement dynamically configurable water resources data directory, including data catalog customization, metadata entry, data download, data query and access statistics and other functions.