The Study Of Based On ArcGIS For Flex API For Key Technology Of Query System

Because of the increasing development of science and technology, it makes the integration of multi-discipline each other and intertwined in the ongoing formation of a new area, geographic information system is one of the resulting disciplines, which combines computer science, cartography, geography and more disciplines. Meanwhile, the popularity of the Internet and advances in technology, especially AJAX, Rich Internet Application (RIA) technologies, for applications in graphics on the Internet have had a profound impact, but also to the rapid geographical information systems development, industry, environmental protection, government and other fields in the practical work also showed the requirement for geographical information systems. However, based on Flex technology, geographic information technology is still in a relatively new stage, by using this technology, there is no comparison query software development model shape. In this article, from the components of a development model has been studied, such studies are carried out quickly under RIA of Geographic Information Query System for the needs of new development model.This article, first, will from the computer studies and the perspective of the rich internet application which base on the GIS related technologies for the elaboration and analysis of technology, and then introduces the Flex ArcGIS for Flex API development component package on its principle and implementation.After that designing a database, which based on the separation of business, geographical spatial data and database schema, can build the RIA style framewor k of geographic information query system development methods quickly, and methods in the development of the specific question of how to mix BlazeDS and ArcGIS Task geographic information system technology to achieve a common query, and using this design pattern software which has developed, "Kunming pollution census geographic information query system".This article on Rich Internet geographic information systems description and analysis, reveals the architecture of GIS software under the realization principle, for the use of ArcGIS, Flex API, and the development of personnel to provide guidance, and provides a RIA framework of geographic information query system to develop models quickly in the R & D personnel in the future development of related applications to save time and increase efficiency.