On J2ee/mvc Web-based Technology Research And Application

At present, as Internet rapidly develops, web application is becoming more and more widely used. However, it is very common that programs in the existing web application systems are with the problems of low reusablity, complicated maintenance and bad adaption. As the requirements of web application is getting more and more complicated, the developing cycle is increasingly pressing and the requirements for the system's stability, ability of extension and maintainability is increasingly advanced, so it is especially important to consider the problems of how to design on different levels properly, how to build frameworks with different levels and how to select the most reasonable technology.By building the project of infoX-ePortal in which the author participates as background, this thesis introduces MVC design pattern and the Struts framework, which is used to put it into practice, putting special emphasis on discussing how to realize MVC pattern and how the components of Struts cooperate accordingly. And discusses the five-level system on the basis of J2EE, elaborating the design of Web layer, business and logic layer, data enduring layer and data storage layer, and realizing its typical function. Meanwhile, concludes the realizing techniques of each level, making it as reference of Web application technique slection.In the end, this thesis specifically discusses the realization of multi-level structures and Struts frame and the application of Hibernate frame in this program on the basis of considering design and realization of businessman managing sub-modular in infoX-ePortal the as combination of theory and practice. Also, it discusses how to combine Struts framework and Hibernate framework for the application of MVC design pattern to systematic development.To summarize, the application of J2EE platform and MVC design pattern not only can efficiently solve problems existing in traditional Web application development, but also make the system flow clear, easy to extend and maintain by adopting stratification and modularized design.