WebGIS-based Research On Information Gathering Of Urban Commercial Net Sites

Information of urban commercial net sites, which is very important to the development of commerce and economic of a city, has an impact on the decisions of government and business organization, even on the behavior of public.The information of city commercial network, which is acquired through social and economical survey by the government in charge of urban commerce every five years, has been greatly in favor of the commercial development of a city. However, such information can never satisfy the fast development of a city because it is gathered every five years, costs much and lasts two years even longer. Therefore, we should adapt new method to collect commercial information of urban net sites in place of traditional method.This thesis concentrates on the research of the new method to gather the information of the urban commercial net sites including the mechanism, cores technologies and technical routes. Following, basing on the study above, we developed the such modules as information gathering, information validating, information publishing and information analyzing during the WebGIS construction of commercial network points information gathering of Shanghai.There lies six chapters in the thesis. Chapter 1 depicts the research meaning, refers the relating research in the information gathering and then points out the shortages of the relating research. On the basis of this, lists the work in the thesis and depicts the innovation of this thesis.Chapter 2, information gathering of urban commercial network points research. Firstly, the thesis discusses the concept of urban commercial net sites and the information of them, which distinguishes the study targets, and the main character of the information. Then, the thesis analyzes the organizer, participant and steppes in the information collection.Chapter 3, data standards research. Data and system construction standards should obey relational criterions of digital urban construction.Chapter 4, core technologies research. Core technologies in relative to the WebGIS system construction of the information gathering include GIS, WebGIS, Java and its relative technologies such as Servlet, JSP and Java Beans, JSF and JDBC. Then, the thesis discusses the technical route.Chapter 5, sample research. The thesis discusses the construction of some core modules such as information gathering, information validation, information publishing and information analysis.Chapter 6, Conclusion and Discussion. The thesis proposes several problems, which need further solution on the basis of the conclusion.