Research On J2EE Application In The Enterprise Information Publishing System

With the development of science and technology, people realize more and more importance of information to our society, and the enterprises understand more importance to constructing information system. Now many middle and small enterprises have constructed their MIS based on simple software architecture-Client/Server model. There are some limitations such as low degree of opening, low compatibility. J2EE technology and its component based model simplifies enterprise development and deployment. The J2EE platform manages the infrastructure and supports the Web services to enable development of secure, robust and interoperable business applications. Applying J2EE technology to enterprise information publishing system will make up for the shortage of traditional information publishing system. In this article, the author sets up a new system on the basis of J2EE technology, which has follow characteristics compared with traditional system: This information publishing system accords with the idea of component. Software component is good for software reuse. The business logic in a system has been encapsulated in the standard component by using EJB. Compared to the Client/Server architecture in the traditional information system, the three-layer model is adopted in this system to separate the application service from the data service, which makes developing a system and maintain it easier. To use Web to publish information and to store the data needing updating frequently in database insure the published information is latest. JDBC technique is used as the way of reading data from database in Web, which resolves the problem of low efficiency in traditional information system if using CGI, or the problem of poor compatibility if using SAPI (Server Application Programming Interface).Additionally, the system has other advantages of J2EE technique, such as compatibility of different platform, the ability of reading distributed data and so on. In this article the author describes in detail analysis, designing and architecture of system. And the author shows the realization of system.