May 2009
Intermediate to advanced
440 pages
13h 23m
English
book
Web Application Architecture: Principles, Protocols and Practices, 2nd Edition
by Leon Shklar, Rich Rosen
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Chapter 10. Web Application Primer 1: Struts and JSTL
IN THIS CHAPTER
Case Study: Virtual Realty Listing Service (VRLS)
Application requirements
Technology choices
Overview of Struts
Structure of the VRLS application
Design decisions
Enhancements
OBJECTIVES
Review the notion of a web application.
Use the VRLS case study to discuss the requirements gathering and application design processes.
Provide an overview of the Struts framework and examine the inner workings of a Struts application in the context of VRLS.
Explain the reasons behind application design decisions.
Propose enhancements to the VRLS application.
As we mentioned in Chapter 1, web applications are client–server applications that use a browser as their client program. However, web applications are not limited to the interactions between browsers and servers. Server-side application components can operate as "clients", interacting with back-end data sources such as databases, web services, and legacy systems. In multi-tier web applications, every set of adjacent tiers represents a pairing of a client and a server, and every intermediate tier may act as either a client or a server, depending on which of its neighbors it is interacting with. For example, just as the browser connects to the web server to make a request, the application component executing on the web server may connect to a business logic layer, acting as a client for that layer's services.
In the last few chapters, we have covered both client-side techniques and server-side ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.