Application Research Of Building Efficient Web System Based On J2EE

With the rapid development of network technology, technology building enterprise distributed application has become more mature, in particular, N-tier frame and J2EE technology proposed by SUN that have been applied in the conformation of more and more enterprise application system. But due to the complexity and diversity of the J2EE technology, the technicians often did not know how to apply and assemble technology. If the technicians applied technology in the wrong, even achieving the business logic, but probably leading to many vices including low performance, low scalability, close coupling, low software duplication. So how to assemble the J2EE technology reasonable and achieve a system with high performance and high expansibility is my research emphasis in the thesis.In order to solve the problems and implement efficient Web application, the paper put forward EJS_MVC model according MVC pattern and we can assemble component by using EJS_MVC model, it can solve many problems of Web application and improving system with clear flow and clear function partition, In addition, due to controller is the most importance in the EJS_MVC model, so the thesis also discuss some problems about controller design; if the model is not designed accurately, system performance will encounter fatal influence, so the article lucubrate EJB technology from EJB choice, EJB optimized design, database access, design pattern etc and bring forward some strategies and methods about how to build efficient business tier; finally based on EJS_MVC model, a example that contains simple business logic is developed according to the Object-orient software engineering thinking and some strategies and methods proposed by the thesis, in the process of achieving system function, the emphasis is probing into how to assemble and apply technology reasonable and providing a new thinking thread and method contributing to build high effective and flexible J2EE application.