Discussion Of Web Application Development Method Based On J2EE And MVC

Web technique is the most far-ranging application development technique in the Internet currently, which sustains real-time information release, dynamic user alternation and flexible safe connection with back system. So it' s a hotspot of Internet technique development currently to construct Web application with more function, more flexible application and easier development, the key of solving this problem is the technique and development methods of website.Design Pattern is a kind of important idea of Object-Oriented field brought forward in the latest years. The idea thinks that software can be abstracted to a kind of pattern which describes the problems and solutions facing to the system and can be reused at the level of system design. UML regulates a suit of standard language which describes software system visually and is applicable to the entire software lifecycle and different techniques, with a view to developing a kind of method unifying Object-Oriented modeling technique.MVC (Model-View-Controller) Design Pattern is one of the important design patterns. Model is the relative data which is the internal property of Object; View is external presentation form of Model, one Model can correspond to one or more View, View also possesses the function of alternating with environment; Controller is the relating ligament of Model and View, Controller picks up the external information transmitting from View and transfers to corresponding event, and then update the Model; On the other hand, Model' s update and alteration will notice View via Controller to keep the coherence of View and Model.J2EE(Java2 platform, enterprise edition) is a kind of new model entirely which consists of JSP, Servlet, JDBC, JavaBean and EJB so on mostly. It has not only independence of platform and high distributing disposing ability but also strong compatibility.The paper describes the concept of Design Pattern, emphasizes the framwork of MVC and UML and provides a new development method based on MVC and J2EE, and develops a Web application using the method andaccording to the systematic, nonobjective, normal and visual presentation provided by UML.