Study And Implementation Of GeoWeb Based On Rich Internet Application Technology

GIS technology provides for the IT geospatial information framework, As a result, IT can be geo-spatial dimensions and even the time, organization, storage, management, integration, search and display a variety of real-world information, the formation of geo-spatial framework based on "a map" mode of information integration and sharing. RIA technology has matured in recent years and began to be widely used, at the same time, another emerging area of increasing the rise - GeoWeb. GeoWeb comes with network maps and GIS, the field of Web 2.0 by the LBS (location-based services) rise to more than started to enter the field of application today, the combination of RIA technology and GeoWeb is an inevitable trend.In this paper, Flex and ArcGIS API for Flex as a programming platform, REST and SOA integration of Web Services framework, the establishment of the GeoWeb based on RIA. Through research, a preliminary application has been the establishment of GeoWeb applications based on RIA solutions to the mode of realization of the GeoWeb principle, architecture, and the realization of some functions of the given sample. The Widget programming model used in the development of client functionality, to achieve the RIA process to achieve high cohesion, low coupling the purpose of the project to facilitate the integration of the expansion of GeoWeb. The program is mainly based on open-source to develop the RIA projects of GeoWeb applications, RIA has a lot of advantages, such as a good user experience, faster response and rich user interface, Internet-based open standards for data transmission, rich components, event-based drive, capable of rapid development and so on.Implement Network to achieve the deployment of GIS, including the basic map browsing, query and operation of GIS functions. Used to build a SOA application in a number of generic services can be reused and the use of the Web service is simple and RESTful standard set. The eventual realization of an SOA based on the RESTful architecture of Geoweb applications.