Research And Development Of Spatial Web Service Based On ArcGIS Server And Ajax Technology

Spatial Web Service Platform as a new generation WebGIS framework, has came into existence with the technique of Web Services was developed rapidly. This platform, which integrates service and software as a unique entity inside the framework, is an innovative concept that not only plays a crucial part in the family of GIS software, but also leads WebGIS to satisfy users' expectation as long as the application of Web Services is continuously extended.This dissertation brings readers a first impression by an instruction of the concept and characteristics of Spatial Web Service .We explained the concept and some characteristics of Spatial Web Service, summarized research status and detailed the aims of our dissertation. Then it followed by the discussion of basic ArcGIS Server structure and the methodology applied in its development. Then an Ajax framework, also its working mechanism, which is based on the Server, is analyzed. We illustrated the ArcGIS Server Ajax framework amply which based on Asp.Net in this part. The latter part we explained the process of constructing the Spatial Web Service for ChangSha Food Service Information System in which the efficiency of service had been dramatically increased according to users.In this dissertation, we devote it to depict the process of development of ChangSha Food Service Information System, including the background, system design, database design and operation of each functional part as a whole. The last, we summarized this dissertation followed by a conclusion that mentioned some subsequent research and a few problems to be solved in future.The outcomes of our research: first, we established a solution for structuring Spatial Web Service based on ArcGIS Server. Secondly, an original system was designed to give answer to problems confronted by traditional WebGIS. Moreover, we illustrated specifically the technique framework of ArcGIS Server and then applied Ajax into it. Feedback from our users has shown that the framework functioned excellently.