Research And Development Of Enterprise System Base On J2EE

With the increasing enterprise demands and rapid development of network technology, enterprise application development is becoming more and more cautious and complex. Adopting reasonable enterprise applied frame and new technology will be significant to whether enterprises can use their own information resources effectively for favorable status in the competition. With the recent development of science and technology, enterprise distributed technology has become more mature, in particular, it has been proved successful by n-tier B/S frame and J2EE technology proposed by Sun that have been applied in the constructions of more and more enterprises.Premising basically with n-tier B/S frame and J2EE technology and based on J2EE, this thesis introduces enterprise application whose center is business tier, and makes a point of investigating business logic tier and its EJB technology in the n-tier B/S enterprise application model based on J2EE. Firstly, we lucubrate n-tier B/S frame and J2EE technology and summarize their advantages and characters. By detailed analysis and research, we propose that n-tier B/S enterprise application based on J2EE is the advanced solution to the construction of modern enterprise system. Secondly, we introduce the n-tier B/S enterprise application model based on J2EE and make a point of the core tier-business logic tier-in the J2EE n-tier model. After analyzing the key technology of business logic tier and some problems in its design, we deeply discuss the design idea of business logic tier, introduce its importance in the development of enterprise systems and developing deploy in the practical n-tier B/S frame, then combining with practical project, have a try on how to apply the method of n-tier B/S frame and J2EE principle and technology to the construction of high quality and practicable distributed enterprise application. Finally, we propose some problems under further exploratory research on the basis of summarizing the whole thesis.