角色权限管理在WebGIS系统中的应用

基于角色的权限管理在各类应用系统中已得到了广泛的应用,它能方便地控制不同权限的用户登录系统后查看不同的信息、使用不同的功能,增加了系统的安全性和多用性。WebGIS系统中往往会有许多不同权限的多种用户,分别可以获得不同级别或种类的地理信息。该文先简单介绍了ArcGIS Server 9.2中Web ADF的基本情况,而后阐述了几种不同的基于角色的权限管理方案,用来控制基于ArcGIS Server开发的WebGIS网站中地图图层和图例的显示与否以及工具条中工具和任务的可否使用。最后作为示例,利用Web ADF开发一个简单的WebGIS网站并用角色来控制权限。

Role-based Access Control in WebGIB Systems

Role-based privilege management has been used in many kinds of applications, by using it, users logged in with different identifications can view different information and use different functions, which makes the system more secure and versatile. Generally, in a WebGIS system, there will be many users of different authorizations, and they are limited to different level or kind of geographic information. First this article introduces fundamentals of ArcGIS Server 9.2, then lists several role-based management solutions which are used to control the visibility of the map layers,legends,usability of tools and tasks in WebGIS website based on ArcGIS Server. At last , an example of simple WebGIS website which is developed with WebADF is provided to illustrate how to use role-based privilege management in WebGIS.