Chapter 4. Servlet and JavaServer Pages Basics
A JSF-based application runs as a web application in a Java web
container. While the Java Servlet API dependencies are limited to a
few classes, and a simple JSF application never needs to be exposed
to it, the main concepts defined by the Servlet specification must be
understood to develop and deploy a JSF application. In addition,
JavaServer Pages (JSP) technology—which is based on the Servlet
API—is often used as the presentation layer in a JSF
application.
This chapter is a brief introduction to the Hypertext
Transport Protocol (HTTP), servlets, and JSP, focusing on the areas
that are important for a JSF application. This chapter contains the
bare minimum you need to know to understand the rest of this book. I
recommend that you read books dedicated to the subjects of servlets
and JSP before you embark on a real development project. Two books I
can recommend are Jason Hunter's and William
Crawford's Java Servlet
Programming (O'Reilly) and my own
JavaServer Pages (O'Reilly). If
you're already familiar with these technologies, you
can safely skip this chapter.
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