J2EE Core Technologies' Research And The Application & Realization On Campus Network

J2EE is a very important platform for enterprise computing. It has distinct advantage for quickly developing distributed, multi-tier and high performance enterprise application. It is also one of prior technology platforms which use to developing large e_business projects now. This paper introduces most kernelled technologies of J2EE platform. Some of these technologies, such as EJB component technology, JMS , JavaMail and JDBC, are stressed discussed in the first part. By research, the author find that the advances of J2EE mostly embody its architecture and EJB component. So more attentions are given to how to develop EJB component and these technologies' location and function in J2EE architecture. The application of J2EE on campus network is another emphasis in this article. It is only a small application on campus network, but it has typical J2EE architecture and most core technologies are also used in the example. The author first discusses application aspect and application foreground of J2EE on campus network in theory, then a practically illustration is given for demonstrating J2EE' s application on campus network. This illustration is a second hand goods bargaining platform, which is a mini e_business system. In the illustration, the author lays out many contents and characteristics of the core J2EE technology, gives out the full processes of developing J2EE application program, involving developing EJB component, setting developing environment, deploying application program, web testing, and so on. The illustration is a epitome of developing J2EE application on campus network, and these methods and technologies in this case are often used by other applications on campus network, indeed they are also used in large e_business projects.