Design And Implementation Of J2EE-Based CAI System In Primary It Course

With the development of information technology, there is growing concern about the modernization of means of education. And computer-assisted instruction (CAI) is an important part of the modernization of means of education, became more and more attention by the people. In order to meet the needs of modern education, to meet the daily needs of primary and secondary education in Information Technology, design and develop a CAI system that can be highly effective in recording the learning process, helping the teachers statistics and analysis the study situation of students, and evaluating objectively the students, has its practical application value.The CAI is based on b/s structure.And based on the study on the lightweight J2EE framework, and the system architecture was determined. To make the system more flexibility, versatility, compatibility and interoperability，this paper deeply study the frame technology combined with SSH, and apply it to the system development.In order to meet the actual functional requirements of the system, this paper deeply study a variety of JAVA open source projects and some tools, and finally proposes the following solutions: use FlashPaper to transfer student works into SWF format and then make the preview, and which can be avoided the Students copying each other Apache POI is a solution to dealing with JAVA and excel. And through the joint use of POI and Excel, adding bulk data to the database becomes convenient JFreeChart open source projects, visual presenting the statistics results of students’ learning situation ANT’s API open source projects, realizing the remote and restore of Mysql database, and remote collecting student work This paper also discusses the Chinese garbled and multi-thread safety problems, and proposes solutions to solve these problems.Finally, after analysis and understand the teaching status of CAI System in domestic and foreign classroom used, from the actual demand of education, make the detailed study on the functional requirements of each module in system, and finally make a detailed system design and implementation.Author made a lot of work on software design and development, and the CAI system this paper referred works well in practical applications.