Research And Application Of General Framework For E-gov Management System Based On Spring

Informationization is the important symbol of weighing up modernization of nation. Developing the e-government and building the e-gov management system is becoming the same opinion of the countries. Today e-gov systems's architecture has already begun from the traditional C / S to B / S transition, the traditional C / S structure has become increasingly unable to meet the needs of the Government, which allows users narrow and inconvenient to use, it is not easy maintenance, inadequate security, and other serious shortcomings hinder the development of e-gov. In the traditional e-gov development process, J2EE framework which uses the heavyweight EJB has many shortage,such as system design complexity, the corresponding request pages long time, resources occupy high, the server hardware and software requirements, the bottom of the package focused on the technical details, reuse inadequate, and many other smaller particle size.To address the above problem, this paper based on the integration of the ideological framework, using some lightweight, flexible J2EE framework instead of the traditional heavyweight EJB, designs and realizes a government system common development framework, the framework has betterly achived the separation and capsulation for performance layer, business logic layer and data persistence layer and provide transaction processing, authentication ,access control, and other key support services.All components of the framework are running in the Spring container. Spring mainly implements business logic of the system. In the data layer, if you use JDBC direct access to the database, its low operation efficiency, and in Java programs embedded in a large number of SQL statements, the tremendous volume of programming, in order to solve this problem, this paper uses Hibernate on a lightweight JDBC Packaging data persistence to complete the work. In the presentation layer, in order to solve in the Web interface the lack of sensitive aspects of user response made in the use of Web browser to refresh pages very slowly, this paper introduces the DWR framework based on Ajax to expand the Spring MVC module. This means a partial update of the data pages ,it can construct more dynamic and more sensitive response of Web applications, and achieve rapid light of asynchronous communication, makes Web layer that the current sensitive situation has improved; substantially in order to enhance the security of the system, code reusability and maintainability, and also joined the Acegi and Tiles on the integrated framework for further improvement.Finally, the generic framework has been used in specific e-gov system. The common framework for the most development of e-gov has universal guiding role.