Abstract
With the rapid development of computer network technologies and distributed computing technologies, more and more enterprises begin to accept and use Web GIS. As a result of the thought that traditional Web GIS has focused on system, a number of existing Web GIS are isolated by each other, and facing the problems with data islands and function overlaps, which results in the waste of spatial data resources, the redundant construction of spatial information service, the difficulty of system integration and so on. All of these demands that the new generation Web GIS should focus on users, be service-oriented and be easily integrated systems. The introduction of Portal can solve difficulties above. This paper studies how to bring in Portal in the process of designing and developing Web GIS to solve the difficulties of resource integration and the personalized services of users. And the author has successfully implemented a Web GIS Portal based on JSR 168 Java Portlet Specification. The facts have proved that a Web GIS developed by Portal can provide users with better user experience and be easily integrated with other application systems.
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