【作者】 范昆鹏；

【导师】 饶文碧；

【作者基本信息】 武汉理工大学 ， 计算机应用技术， 2004， 硕士

【摘要】 地理信息系统(GIS)正在逐渐深入到许多的领域中，而计算机网络的迅速普及又加快了传统GIS向网络GIS转变的步伐，GIS与网络技术的结合是当前GIS研究领域的重要方向，构造分布式地理信息系统—WEBGIS是GIS发展的趋势。 本文首先介绍WEBGIS相关知识，包括空间数据库、WEBGIS基本技术、J2EE技术，然后在此基础上介绍ESRI的WEBGIS解决方案和其产品系列，最后从工程项目的角度讲述WEBGIS在其中的应用。 本文讨论的重点是在WEB环境下GIS系统服务端的运行模式和客户端运行模式。服务器端采用ESRI公司的解决方案，利用其开发类库，地图发布服务器，空间数据库引擎来建立三层模式的架构。客户端采用了基于浏览器和Java小应用程序的结合方案，而地图的显示方式也采用结合矢量图和栅格图的方案，这样可以利用各自的优点来达到更好的功能／负载结合点。 论文探讨了其在传统的信息管理系统及项目管理系统的应用，使WEBGIS适用于一般性工程项目系统管理，具有可视化强，功能丰富，跨平台等特点。更多还原

【Abstract】 Geographical information system (GIS) is going deep into many fields, and the rapid application of computer network is accelerating the evolution of network GIS from tradition GIS. The combination of GIS with the network technology is an important direction of the present GIS research field, and the constructing of distributed GIS named as the WEBGIS, is the trend for the develpping of GIS.This thesis introduces the knowledge about WEBGIS at first, including spacial database, the base technology of WEBGIS, the J2EE technology. Then ESRI’ s WEBGSI resolutions and it’ s products are introduced. At last, the application of WEBGIS on engineering project is introduced.The emphases of this thesis are the server’ s running mode and the client’ s running mode of GIS in WEB environment. The server adopts the ESRI’ S resolutions, including developer library, map release server and spacial databse engine to build three-layer mode. The client uses the scheme based on browser and Java applete together.The map display mode uses the scheme based on vector map and grid map. Thus the better combination of functions with load can be gained through respective strongpoints.This paper discusses the WEBGIS’ s application in tradition information management to make WEBGIS suit to gengric engineering project management system which has better visual effect, more fuctions and cross-platform, etc.更多还原