CAJ | 학술논문

为满足政府、企业和公众等用户对GIS实时性应用的迫切需求。在分析传统WebGIS采用请求/响应工作模式不足的基础上，利用服务器推送Comet技术，基于Pushlet开源框架和MapGIS IGServer，设计了一种实时WebGIS框架，利用Pushlet订阅/发布机制，实现基于标准的HTTP协议的地理空间信息服务器端实时推送；利用数据库触发器实现更新数据的即时分发；利用富客户端Flex技术进行客户端信息展示。在气象监测预警系统中对该框架的可行性进行验证，为实时WebGIS的开发应用提供新的方法和思路。
위만족정부、기업화공음등용호대GIS실시성응용적박절수구。재분석전통WebGIS채용청구/향응공작모식불족적기출상，이용복무기추송Comet기술，기우Pushlet개원광가화MapGIS IGServer，설계료일충실시WebGIS광가，이용Pushlet정열/발포궤제，실현기우표준적HTTP협의적지리공간신식복무기단실시추송；이용수거고촉발기실현경신수거적즉시분발；이용부객호단Flex기술진행객호단신식전시。재기상감측예경계통중대해광가적가행성진행험증，위실시WebGIS적개발응용제공신적방법화사로。
In order to meet the urgent need of the government, enterprise and public users real-time application of GIS, after the analysis of traditional WebGIS using the request/response mode insufficient, using server push Comet technology, based the Pushlet and the MapGIS IGServer, a real-time WebGIS framework is designed. Pushlet Subscribe/release mechanism can achieve real-time server-push based on the standard HTTP protocol geospatial information. Database triggers update data in real-time distribution. Taking advantage of the rich client Flex technology for client information display,meteorological monitoring and early warning systems in the framework of viable new validation provided a new method for the development of real-time WebGIS applications.