Web Application Research Based On J2EE

Along with the rapid popularization of Internet and E-commerce, the complexity of Web application is increasing and its scale is also enlarging continuously which present the characteristics of high real time, dynamic and individuation, so this situation makes the conventional Web application and development technologies, such as the architecture, Web page designing technology and programming development technology, uncover many shortages, such as the interweavement of flow control and interface denotation in the architecture, Web page design and programming development in the dynamic Web page development technology. These shortages also make many problems of lower efficiency, increasing cost, difficult extension and maintenance and lower dividing the work and cooperation, and confine the development of Internet.Aiming at these shortages, after analysis, this paper considers that due to the mutual interweavement of system interface denotation, flow control and logical code, they result in the decline of system performance, at the same time, conventional single user interfaces are worse and worse and also have no ways to satisfy the variety of demands of user interface types. The problem source is the mutual interweavement and dependence of the various factors. So the solving problem key is the separation relative to the interweavement. The paper researches J2EE technology as well as XML and UML, summarizes their virtues. Owing to MVC pattern is a good pattern which can realize the separation, this paper analyses the MVC pattern, and according to the Web characteristics, brings forward the suited Web application development Web_MVC pattern based on MVC pattern. This pattern can effectively realizes the separation of the interface, control and logic in the Web application. By analyzing the principle and characteristic, this paper points out, as long as mending the pattern, can resolve the above Web development problems. Taking the J2EE technology is the best choice to realize the Web_MVC pattern, based on the above, establishes the realizing J_Web application development scheme based on the Web_MVC pattern. And then according to 00 software engineering methods creates a education website based on UML tool. This paper gives the module detailed design process, system configure, and run process.This paper scheme can effectively realize the separation of interface, control and logic in the Web application, also can apply for all kinds of Web application development and resolve the shortages in the conventional Web application development in which this scheme has many virtues of reusable ability, easy plant, security, haleness, flex, adopting module technology easily and UML tool.