Research And Application Of WebGIS

In recent years, due to the continuous development of the Internet and the commercialization of the Internet with the trend, as well as the popularity of the WWW, GIS companies have also committed to the Web for product development, so that the electronic map toward popular. WebGIS is the use of Internet technology to expand and improve the GIS, a new technology, Internet technology is the product of GIS, GIS it from the traditional stand-alone mode to the development of the network in order to provide users with more to a wider , Convenient and efficient service. Internet users from any node of the WWW browser WebGIS site of spatial data, and can carry all kinds of room for retrieval, analysis and production of thematic maps. A fundamental solution to the original single-use GIS limitations, to achieve a real sense of maximizing the sharing of information resources and effective system to improve the maintainability and scalability.In this paper, the focus is on digital geographic information technology and take full advantage of a comprehensive analysis based on computer networks, Java language as a platform to explore how to build a network carrier for the geographic information system platform, and the realization of related functions, making GIS digital, networked, so as to better serve the community of modern information technology.This paper describes the overall WebGIS system design and development process to achieve. First of all papers on the WebGIS principle, implementation, development and related technology were introduced and made a comparative analysis of macro-comparison. Absorb and draw on a variety of technical advantages and disadvantages on the basis of the spatial information from the web design idea, the final selection of MapInfo's MapXtreme product map as the application server, to develop based on B / S three-tier structure of the WebGIS system framework. The present system of systems Eclipse as a development tool, dynamic web technology to produce Java, JSP, JavaBean and Servlet Programming, SQL Server2000 selected as the background database, the database using JDBC interface technology to connect. The ultimate realization of a geographic information system for both the Web publication, but also to provide analysis of the query system WebGIS services WebGIS relatively perfect system framework.