基于XML的WebGIS 3层B/S结构应用研究

The Application Research of WebGIS Based on Three-Cayer B/S and XML

首先介绍了WebGIS的特点和基本要求,分析了当前WebGIS面临的主要技术难点。然后重点讨论了可扩展标记语言XML的应用规范和特点,并把XML和WebGIS相结合作为统一的数据交换格式应用于3层的B/S结构,提出了一个基于XML的WebGIS解决方案。该方案有效地实现了WebGIS中空间地理信息数据的存储、数据共享、数据转换和数据发布等功能,弥补了以往WebGIS系统的不足。

This paper introduces the traits and requirement of a WebGIS system, analyzes the primary problem in face of WebGIS. After detailed discussion of the application specification and the traits. This paper integrates XML into WebGIS, applies XML as a general data exchange format in three-layer B/S structure and advances a solution of a WebGIS system based on XML. This project can realize the storage, share, transfer and presentation of spatial data, which make up the shortage of some traditional WebGIS system.