The WEB-INF directory contains
and subdirectories for other types of resources used by the
application. Files under this directory aren’t
directly accessible to a browser. Two WEB-INF
subdirectories have special meaning: lib and
classes. The lib directory
contains JAR files with Java class files, for instance JavaBeans
classes, custom action handler classes, and utility classes. The
classes directory contains class files that are
not packaged in JAR files. The web application automatically has
access to all class files in the lib and
classes directories (in other words, you do
not have to add them to the
CLASSPATH environment variable).
If you store class files in the classes
directory, they must be stored in subdirectories mirroring the
package structure. For instance, if you have a class named
com.mycorp.util.MyUtils, you must store the class
Another type of file that can be stored in the classes directory is
the type of a resource properties file containing localized text, as
described in Chapter 11.
The WEB-INF directory can also contain other directories. For instance, a directory named tlds is by convention used for tag library Tag Library Descriptor (TLD) files when they are not packaged in JAR files.
During development it’s more convenient to work with the web application files in a regular filesystem structure instead creating a new WAR file every time something ...