Research And Realization Of WebGIS Based On ArcGIS Server

Combining GIS with web promotes the development of WebGIS, the appearance of Ajax technique further speeds up the industrialization and popularity of WebGIS . In recent years, ESRI has introduced a series of ArcGIS Server, which made WebGIS based on ArcGIS Server and ajax technology more mature, and got WebGIS play a significant role in the life of public information.First of all, this article introduces the principle and advantages of Ajax technique, particularizes the asynchronous communication of the working methods and the key technique about Ajax. Callback Technique of ArcGIS Server ADF For .net encapsulates the Ajax. Taking advantage of this technique in WebGIS has more excellences, for example, no limitations on the browser, the convenient and fast development, means of communication in asynchronous communication, and so on. In the future, using the Ajax technique in WebGIS is an important direction of development.Secondly, this article analyzes the Framework of ArcGIS Server Ajax, expounds the run-time mechanism and summarizes the means of development of ArcGIS Server for .Net. In the practicality, the success of WebGIS based on ArcGIS Server undoubtedly suppies a new design way and mode for GIS.Finally, this article focuses on the way of the development of WebGIS based on ArcGIS Serve9.2, then puts forward an enterprise-class solution of GIS system, and particularly discusses the key technique and the expansion mechanism about the development of WebGIS system. On this basis, Ajax-based applications of WebGIS has been designed and developed, and anticipative effect has been realized through test.