摘要
本文从Servlet技术出发,探讨了Servlet技术在Web GIS服务器实现上的优势。针对目前分布式Web GIS中面临的数据和信息的分布存储、地理信息难以整合、多用户并发访问瓶颈等问题;探讨了通过构建Servlet服务链来实现分布式Web GIS的体系架构,基于Servlet服务链的分布式空间数据的调度与管理,Web GIS服务器端GIS Servlet服务链的构建。最后,通过实验验证了多Servlet服务链在Web GIS中分布数据处理,服务中多用户并发访问等方面的优势。
Based on servlet technique, this paper explores the advantage when it is used on Web GIS servers. Aiming at solving such problems as difficulties in making distributed data and geographic information union and in bottlenecks of simultaneous multi-users' accesses, this paper introduces a method of making series of servlets work together, which is called servlet-chain. By means of servlet-chain, the authors design a distributed Web GIS system containing organization of distributed spatial data and structure of GIS servlet-chain in Web GIS servers. In the end, advantages of servlet-chain in processing distributed data and multi-accessing service are demonstrated by the experiment.
出处
《测绘科学》
CSCD
北大核心
2007年第3期94-95,98,共3页
Science of Surveying and Mapping
基金
教育部<长江学者和创新团队发展计划-创新团队>项目(编号:IRT0438)
