Notes on web.dtd and web.xml files - chapter 10

web.dtd is the DTD required by the Java Servlet v2.2
API for web applications. The formal description for
use in web.xml is:

<!DOCTYPE web-app
    PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN"
    "http://java.sun.com/j2ee/dtds/web-app_2.2.dtd">

Note that the 2.3 API may require a different DTD.

web.xml is an example Web Application Deployment Descriptor

This is the version I have been using when working with
Tomcat 3.1 and the various servlets in the book.