This article explores the Struts framework in depth and highlights the benefits Struts can bring to your development efforts. We believe that once you can “talk the talk” of web architecture and design, you will be better equipped to use Struts with your own applications.
With a sound overview of the Struts architecture in place, we outline the Struts control flow and the way it handles the request-response event cycle. A good understanding of this process makes it much easier to create applications that make the best use of the framework.
Choosing a web application framework should not be a casual decision. Many people will use this book, and especially this chapter, as part of evaluating Struts for their project. Accordingly, we conclude this chapter with a candid look at the strengths and weaknesses of the Struts framework and address concerns regarding overall performance. Struts is designed for professional developers. To make informed decisions, professionals need to be aware of both a tool’s capabilities and its limitations.
A Greatt Desiign Pattttern – MVC
Part of MVC triad
A Model in MVC terms is a presentation-neutral arbiter of data. This data then can be tailored to support a given presentation, or tailored to represent application-specific data structures.
A View is a presentation-specific way of displaying data from a Model. There is a relationship between a Model and View such that changes in a Model are automatically reflected in any Views attached to it, and changes in the View-presented data are automatically pushed back to associated Models.
The controller coordinates activity Model and View, and for the application as a whole. Whereas Model and View can frequently be instances of off-the-shelf types, Controllers are typically custom written to an application.
Fig 1, below depicts MVC design pattern. Here all different types of flows have been depicted, which whenever separated can lead to different implementations of MVC.
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