LAB SESSION 2: SERVLETS
=======================

0.- Understand what Servlets are and how they work. A good place to start is:
http://www.cse.iitb.ac.in/dbms/Data/Courses/DBIS/Software/servlets/servlet_tutorial.html

1.- Install Tomcat. Download Tomcat from:

-> Linux:
http://docencia.ac.upc.edu/FIB/PXC/lab/_servlet/jakarta-tomcat-5.0.28.tar.gz
Untar the tarball:
tar xzf jakarta-tomcat-5.0.28.tar.gz; rm jakarta-tomcat-5.0.28.tar.gz

-> MS Windows:
http://docencia.ac.upc.edu/FIB/PXC/lab/_servlet/jakarta-tomcat-5.0.28.exe

2.- Set CLASSPATH:
bash
CLASSPATH=$CLASSPATH:~/jakarta-tomcat-5.0.28/common/lib/servlet-api.jar
export CLASSPATH

3.- Start Tomcat:
bin/startup-using-launcher.sh

4.- Try the examples in:
http://docencia.ac.upc.edu/FIB/PXC/lab/_servlet/p3codigo.tgz

4.a) You have to save the servlets in
~/jakarta-tomcat-5.0.28/webapps/servlets-examples/WEB-INF/classes and compile
them

4.b) Save the html pages in ~/jakarta-tomcat-5.0.28/webapps/servlets-examples/.
You can access the html pages at
http://localhost:8080/servlets-examples/hola.html

5.- Every time you and a new servlet to Tomcat you have to:

5.a) Register each servlet in
~/jakarta-tomcat-5.0.28/webapps/servlets-examples/WEB-INF/web.xml with the
following:
8<---
<servlet>
	<servlet-name>hola</servlet-name>
	<servlet-class>hola</servlet-class>
</servlet>
<servlet-mapping>
	<servlet-name>hola</servlet-name>
	<url-pattern>/servlet/hola</url-pattern>
</servlet-mapping>
--->8

5.b) Every time web.xml is modified Tomcat needs to be restarted.

5.c) You can execute the servlet directly with a browser with the following
URL: http://localhost:8080/servlets-examples/servlet/hola

6) Implement the same car rental system you did in the previous lab session.
But, this time with servlets.