摘要
针对企业级WebGIS应用中海量数据网络传输的瓶颈问题,设计了一对具有压缩和解压功能的数据传输控制器组件。该组件通过控制服务器与浏览器间的数据传输方式,透明压缩和解压数据,无缝连接和集成WebGIS,从而扩展了利用商用WebGIS开发应用系统的功能和应用范围。通过对该组件在多种网络环境下传输海量数据的应用试验,结果表明合理应用该解决方案,能满足大多数企业级WebGIS应用系统的开发和应用需求。
A structure of application system is introduced for quickly building an enterprise level webGIS by analysing the structure and data type of current commercial webGIS, A pair of middleware to control and transmit data is designed and implemented for reducing the network bandwidth consumption in webGIS application, The components could compress and decompress the data with＂transparency＂ method between browser and webGIS server by controlling data transmission mode. It could be integrated into user＇s application system and work with primary WebGIS without any modifications, so that the system gets extended and it has a variety of applications. The results show that it can meet most of requirements of enterprise level applications.
出处
《计算机工程与设计》
CSCD
北大核心
2006年第6期1048-1051,共4页
Computer Engineering and Design
关键词
数据传输控制器
WEBGIS
压缩解压
网络传输
data transmission controller
webGIS
compression and decompression
middleware
