Regarding Error 404-please help!

Question

Hi Wisemen,
I'm trying to deploy a servlet on my fresh installated tomcat. I believe I've succeded on installation as I can see the main page and run its servlets on http://eawars.sytes.net:8180/, which is the domain and port of my remote tomcat. (I run tomcat on a server on my LAN, but I've opened ports for you on router to check it and because we're deploying a java application as soon as I get it to work.
Actually, it USED to work three days ago, then, I don't know why, the basic servlets I tried for testing stopped working, although the main page and servlets keep working.
Anyway, I just tried a basic HelloWorld servlet. I assume the compilation was good and the .class file is correct, as it was before. I deploy the servlet structure into the webapps folder. However I get the resource not available error.
Here's my web.xml:
<?xml version="1.0" encoding="ISO-8859-15"?>
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN"
"http://java.sun.com/j2ee/dtds/web-app_2_2.dtd">
<web-app>
<servlet>
<servlet-name>Hello</servlet-name>
<servlet-class>HolaMundo</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Hello</servlet-name>
<url-pattern>eawars</url-pattern>
</servlet-mapping>
</web-app>
I run tomcat on an ubuntu server with shorewall (it has the port open). I'm putting the servlets not on the ROOT/webapps but on the /usr/share/tomcat5.5/webapps/
the .class name is HolaMundo.class
At first, I had the invoker mapping commented on /conf/web.xml, as suggested (though unrecommended) on many pages, I tried uncommenting it, and restarting, with no result. Same thing with
<servlet>
<servlet-name>invoker</servlet-name>
<servlet-class>
org.apache.catalina.servlets.InvokerServlet
</servlet-class>
<init-param>
<param-name>debug</param-name>
<param-value>0</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
Which is not what they point out to be uncommented.
I didn't do a backup of the conf web.xml file, I'm afraid I may have screwed it up...
I also tried deploying some *.war (one you provide and another one). Same result.
I feel totally lost, I may re-install tomcat but I feel like it can be solved easily... I'm stuck.
It's my first contact with servlets, I'll be reading the servlet basics, but I'm not sure it helps...
Thank you for your attention, if you'd need any extra information, I'll gladly provide it.
See ya!
Quim

Answer 1

I'll try recompiling the HelloWorld.java adding a package. I'll then have to put it on a folder inside the WEB-INF/classes/packagename/ and change the mapping to packagename.HolaMundo then. The tutorial seems highly oriented to NetBeans, which I don't have on this computer. It doesn't refer on plain-text configuration as far as I've read. And it focuses on a lot on features of NetBeans, while I would like to just test the servlet deployment of tomcat before going in-depth to a real web application. I've tried as well two .war files with no result, which I assume are properly set as the author claims. I guess it's more a tomcat issue?
However, the final objective is to test a Netbeans project servlet a co-worked sent me and which I would like to upload it to the server I have at home. I haven't tried yet, but tomcat uses a diferent structure than the one used on the NetBeans project, I guess I have to copy just the web folder? -Absolute Beginner Talk on that-
Thanks for your support,
Quim
pd. I forgot to say that the HelloWorld.java is the one provided by Tomcat example on tomcat default main page
Edited by: QuimNuss on Nov 14, 2008 9:18 AM