基于 WebGIS的城市污染源信息管理系统的设计与实现

针对当前污染源信息管理系统中普遍存在的信息共享不足、空间分析处理能力匮乏、可视化能力不强及数据管理混乱的问题，设计并实现了一个基于WebGIS的城市污染源信息管理系统。详细阐述了系统的实现目标、体系结构、功能设计和数据库设计；介绍了系统实现的技术路线，并以定位查询为例，展示了系统客户端异步更新的实现方法。

The design and implementation of the urban pollution sources information management system based on WebGIS

Aiming at the widespread problems in current information management system of pollution source, such as the lack of information sharing, the weak spatial analysis, the disordered data management and the weak visualization ability.This paper designes and implements a city pollution sources information management system based on WebGIS and elaborates the system realization target,architecture,functions design and data-bases design in detail.Finally,the paper introduces the technical route of system implementation,and takes the location query as an example to demonstrate the implementing method of asynchronous update in the client.