Ajax和Web服务在空间信息发布中的应用研究  

Application study of Ajax and web service in publishment of spatial information

作　　者：任毅[1] 王平[1] 龚亚丽[1] 房倩[1] 朱茅[1] 

机构地区：[1]北京师范大学民政部教育部减灾与应急管理研究院,北京100875

出　　处：《计算机工程与设计》2009年第11期2698-2701,2717,共5页Computer Engineering and Design

基　　金：国家"十一五"科技支撑计划重点基金项目(2006BAD20B02)

摘　　要：采用传统的WebGIS系统发布空间信息,存在着客户端通用性差、对平台的依赖性强等问题,需要引入新技术进行改进。基于ASP.NET AJAX和Web Service技术,结合SOA架构,提出了一种在线发布空间信息的系统框架,并探讨了该架构下服务器端、客户端的具体设计。最后通过此系统框架,实现了综合风险空间信息的在线发布以及相关功能。系统运行证明,该方法能够显著降低服务器端与客户端的通信开销,并克服空间信息的异构性。To publish spatial information by using traditional WebGIS generally has the problems of low level of universality in client, high dependence on the platform and so on, so it needs to be improved by new technology. Firstly SOA and the concept of GIS web service is introduced, and architecture for publishing spatial information combining with ASP. NET AJAX and web service technologies is put forward. Furthermore, specific design of server-side and client-side in the architecture are discussed. Finally, on-line publishment of spatial information of integrated risk and related functions are realized by using the architecture above. The system proves that the approach can remarkably reduce the communication cost between server-side and client-side, overcome heterogeneity of spatial information.

关 键 词：WEBGIS 空间信息 ASP.NET AJAX Web Service 面向服务架构 

分 类 号：TP302.1[自动化与计算机技术—计算机系统结构]