基于移动Agent的WebGIS中间件的开发

Development of WebGIS Middleware Based on Mobile Agent Technique

针对WebGIS的地理信息系统中信息分布于网络的异构节点中、开发难度大、开发出的系统不稳定等问题,提出基于移动Agent的WebGIS中间件的开发,取得了良好的效果。实践表明,WebGIS中间件可以无缝地嵌入到Web主页,实现网络环境下的GIS应用系统,一方面降低了系统的复杂性,加快开发速度;另一方面也可以平衡网络负载,获得准确的地理信息,节省网络带宽。

Aiming at some problems of the difficulty in the development of geographic information systems （GIS）, such as the system of development is instability, present adopting component technology to accomplish WebGIS middleware based on the mobile agent technique. It showed in practice that the WebGIS middleware can be embedded easily in the Web pages to accomplish GIS application system in a network environment. On the one hand, its application can reduce complexity of system, and speed up the pace of development. On the other hand, it is certain to reduce the development costs, and improve the maintainability.