The Construction And Realization Of The Agriculture Information Service Platform

To advance agriculture information service in the round is the request of quickening constructing the modern agriculture, prospering the country economic, increasing the peasants' income, is the realistic require of manufacture decision-making, evading the market risk, improving science and technology diathesis to the farmer, strengthening the administration function of "economy adjust, market ward, society management, public service" to the government, is the efficiency means of solving "the last kilometer of the information problem", accelerating the information enter the farmers' home project, promoting set up the socialism new country. The agriculture information service of our country has made the prominent effect for decade years' developing. However, in the face of new situation, exist the problem of information resources development lag behind, information service mode single, information repeat, the guidance and applicability inadequate. Under this background, this thesis launches the research around the information extracting, releasing and Individualized information service, constructing the agriculture information service platform for users at all levels in the field of agriculture.The contents of the platform offering have been determined on the basis of abundant investigation and analysis. The demand analysis and the functional design of the platform have been realized through object-oriented analysis and design technology. The system design has also been completed with the modeling tool such as jude and etc. The system is been implemented by using the out-standing technique such as J2EE, the design pattern of MVC, component technology and etc. Besides the general function of information appending, maintenance and releasing, the platform has also achieved the function of web page extractor on the basis regulation expression, the function of Individualized information service by means of subscribing and pushing. Moreover, the system unifies the layout of the web page by the Tiles frame;implement the security function through the role-purview technology, session technology and the database technology.Through the realization of the system and the application, the following conclusions have been summed up: The development of the agriculture information service platform, which gathered the function of information extracting, releasing and individualized information service, has offered a new mode for information service. MVC design model increases the stability of the code, and makes the structure of the application more clear, the relationship of hierarchy more specific. The B/S structure and component technology make the platform more advantageous for upgrade, retractility, extensibility and security.