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MVC Design Pattern and Spring, Struts Framework I. INTRODUCTION The model view controller (MVC) is a fundamental design pattern for the separation between user interface logic and business logic. Since applications are very large in size these days and the MVC design pattern can weak the coupling among the different application tiers of application. this paper presents a web application framework based on MVC in J2EE platform, and extends it with XML so that the framework is more flexible, expansible and easy to maintain. This is a multiple tier system including presentation layer, business layer, data persistence layer and database layer. This separate codes, and improve maintainability and reusability of the application. In this paper, we implemented MVC using spring and struts framework. Our research study show that applying multiple framework to design the applications using MVC concepts makes applications easier compare to a single framework. Web is the very complex issues these days. Since the desire of the companies and organizations are increasing so the complexity and the performance of the web programming matters. Complexity with the different types of communication devices is increasing. The business is demanding applications using the web and many communication devices. So with the increase load of the data on the internet we have to take care of the architecture issue. Let us discuss in brief the research done so far in MVC.40841
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1.1 NO MVC:
In The initial phase of the web development the pages were used to be designed in the html. Html is the plain text only. This was the first markup language which can work on the internet. And today stills it works as building block for the all Internet based programming languages. The user has to interact with the static pages. The information written on the pages had to change manually. As the time grows the demand arises for a language that can interact with the user and page can be changed as per the requirement of the User.
1.2 MVC Model 1:
The first major change in the architecture comes with the introduction of the MVC Model 1 Architecture. This architecture was completely based on the page centric approach. In this model a Java Server Pages to program to control the Presentation, Business Logic and flow of the program. In this model the concept of the Business Logic was introduced. The business logic was hard coded in the form of the Java Beans and scriptlets and expressions. All this codes was used to write within the JSP page.
1.3 MVC Model 2 :
The model 1 architecture was able to solve some of the problem of the web and internet programming but still there were a lot of things missing from it. It was centered on the navigation of the jsp pages so there was the scope of the further development in the architecture point of view. During this process the next development was the Model 2 architecture. This problem was solved using the Servlet and JSP together. The Servlet handles the Initial request and partially process the data. It set up the beans then forward the result to the one of the jsp page. The Servlet decide the one of the page to be displayed from the list of pages. In this Model 2 architecture the JSP Pages were used to Presentation purpose only. The Business logic has been removed from the page. This makes the pages easier to represent and light weight pages which were easy to display on the internet In this model all Control and application logic were handled by the Servlet. The Servlet was written in the java programming language. So it was also easier to handle the programming part of the Servlet. In this scenario the Servest becomes the power full for the complete application and It has emerged as the center point for the application. In the model 2 architecture the Servlet becomes the gatekeeper for the all common tasks. It provides the common services like authentication, authorization, error control and follow of the application. This architecture have solved the most of the problems.But still there were many new issues emerged while applying this architecture