Research About The Framework Technology Of The E-Government Platform Based On J2EE

As the software scale is getting more and more large and complicated and the software crisis is getting more and more serious, "Software reuse" and "in-depth research of software architecture" are being important characteristics of the present software development, which indicates that architecturing and micro-architecturing have been paid more and more attention to. Selecting or designing frameworks is micro-architecturing of systems. Frameworks are the greatest software reuse way of 00 systems. Well architecturing and micro-architecturing have been essential assurance of software quality and software persistent development. And With the dramatic development of J2EE, many new thinking and new open source frameworks come into being. Nowadays, open source frameworks like Struts and Hibernate and Spring are getting popular and have been used in many software development projects.This article mainly researches the lightweight architecture which is based upon Struts and Hibernate and Spring and how it is designed in e-Gov system. To begin with, the article discusses the architecture of J2EE and learns about the functions and relationships between each component. And then, this article will compare the heavy weight architecture based upon EJB with the lightweight architecture to show the merits of the lightweight one. And then, Since Struts, Hibernate and Spring framework are the most popular frameworks in building lightweight architecture, so they will be introduced and discussed in detail. Later, the design and implement of "shanxi province science and technology department e-Gov system" will be introduced. In the part of implementation, this article mainly discusses how to implement each layer by these open source frameworks. During the implementation of Struts to presentation layer, we combine Struts with Ajax technology to implement the asynchronous post of web page.