Programming Jakarta Struts, 2nd Edition [Electronic resources] نسخه متنی

Chapter 4. Configuring Struts Applications

The
Struts framework uses two separate but somewhat related types of
configuration files, which must be
configured properly before an application will work correctly. Due to
the popularity, flexibility, and self-describing nature of XML, both
types of configuration files are based on XML.

The web application deployment descriptor named
web.xml is described
fully in the Java Servlet specification.^[1]
This configuration file is necessary for all web applications, not
just those built with the Struts framework. However, there is
Struts-specific deployment information within it that must be
configured when building Struts applications.

^[1] See the Java
Servlet Specification Version 2.3, Chapter SRV.13.

Although the Struts framework supports the 2.2 Servlet specification, many servlet containers already have support for Version 2.3. This book includes coverage of the 2.2 and 2.3 specifications.

The second configuration file that we will examine is the Struts
configuration file. It is commonly named
struts-config.xml, but
you can name it just about anything you want. The Struts
configuration file makes it possible for you to declaratively
configure many of your application's settings. You
can think of the Struts configuration file as the rules for the web
application.