Problem with web.xml

Question

Hello,
I have a big problem with web.xml.
i can run the servlet demos with the default web.xml, but when i try to user a costum web.xml files, i receive a 404 page not found on a link.
i have some dificulty to post here. but can somebody help my with my web.xml files?
thanks for your help.
have a nice day!

Answer 1

Be careful with the place of your files and folders. It's possible that you've just mentioned the cause of your problem.
My web.xml is
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<display-name>gco</display-name>
<description>gco webapplicaties</description>
<servlet>
<servlet-name>MopoController</servlet-name>
<servlet-class>org.gertcuppens.controller.MopoController</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>MopoController</servlet-name>
<url-pattern>/MOPO</url-pattern>
</servlet-mapping>
</web-app>
When I want to call my web application locally, I use the URL http://localhost:8080/gco/MOPO.
The http://localhost:8080 calls Tomcat. With /gco, Tomcat knows it should look for a folder gco inside the webapps folder. This one should contain a WEB-INF/web.xml folder for further instructions.
With /MOPO Tomcat knows, having read the web.xml files of all webapps folders at start, it should look for a servlet with the name MopoController. And this MopoController points to the class org.gertcuppens.controller.MopoController. So, Tomcat knows where to find everything.
Try to see whether your Tomcat can find everything inside the folders using your web.xml file.