空间数据服务代理平台——门户站点体系实现的关键技术

Spatial Data Sharing and Mutual Operation Base on Spatial Data Service Proxy Platform-portals

利用Web服务技术、SOAP技术,并引入GML,建立空间数据服务代理平台一门户站点,浓缩空间数据服务站点信息,实现与众多的空间数据服务站点的动态绑定,提高空间数据共享的可操作性,通过SOAP扩展技术来解决GML大数据量的异构网络传输,从而快速实现空间信息共享和互操作。本文对空间数据服务代理平台一门户站点的体系架构、功能、实现及关键技术等进行了探讨,并总结了体系在实现空间数据共享及互操作方面的优点。

Spatial data service proxy platform--portals is a new way to realize the spatial data sharing and mutual operation. As one of the new distributed object technologies, Web Service specifies a technical framework that allows applications of using different protocols to communicate, transfer information and interoperate. Using Web Service technology, SOAP technology and bringing about GML, the spatial data service proxy platformportals was built to realize auto binding to many spatial data service sites to improve maneuverability of spatial data sharing and to resolve the problem of transferring wealth of GML data on different networks with SOAP extension for the purpose of speedily realizing spatial data sharing and mutual operation. This paper researches the system structure, function, realization and key technology and gives the characteristic and virtue of the system.