The Research And Implementation Of Network Teaching System Based On J2EE Platform

With development of the technology of computer,multimedia and network, Information technology has gradually penetrated into every field of society,in the mean time, network teaching has also been developed rapidly. Compared to the previously used single-assisted instruction, the use of computer and internet network can access to the global computer information resources, and through the networks it carries on more exchanges and the interaction between teachers and students.Thus ,it would have changed the traditional teaching shortcomings of spatial and time constraints, solved the problem of insufficient teaching resources.Fully mobilize the activity, initiative, enthusiasm of the students, also more suitable for the development of modern education form.Therefore, establish and perfect the network teaching system imperative, China's colleges and universities have been Widely carried out the construction of online teaching and research work, In order to adapt to the needs of the development of future society education.In this paper, the auther focuses on the characteristics of network teaching system, Understood the system development present situation and the importance, Adapted the use of the MVC design pattern, UML modeling language, With J2EE platform technology as the foundation,then, Put forward the basic thoughts based on Java Servlet, JSP, JavaBean technology modular Web program and B/S multi-layer system of development. From the service demand, the module function demand, the performance demand and so on three aspects, separately to the system in the teacher, the student, the manager, the teacher's aids four kind of role's architectures and the function have carried on the analysis. From the presentation layer, WEB layer, business layer and data layer logic layer of four carried out the specific design and implementation for the network teaching system optimization software provides a viable framework for.And introduced some of the data table structures and relationships between tables, using the database connection pool technology ,for the purpose of optimizing system data to ensure that multi-user access request, meanwhile,to meet the user on—line learning and Q & A needs.