Yes, I am a newbie.
I am having some difficulty in getting *any* servlets to deploy on a
Tomcat 4.1.3 installation in my development environment. It is very
likely a simple configuration problem, but I have tried about everything I
can think of to resolve it with no luck.
Environment:
j2sdk1.4.1_01
jakarta-tomcat-4.1.18
Redhat Linux 8.0 (kernel 2.4.18)
All of the example, management and admin servlets are working properly in
the Tomcat instance.
I have tried the simplest possible servlet implementation "simple" (hello
world). The class definition was ripped of directly from the shipped
examples with only a name change in the class itself (to hopefully
eliminate java class loading problems).
The servlet was deployed as:
{CATALINA_HOME}/webapps/simple
{CATALINA_HOME}/webapps/simple/WEB-INF/web.xml
{CATALINA_HOME}/webapps/simple/WEB-INF/classes/simple.class
The web.xml file contains (less the ---- delimiters):
----
<?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/j2ee/dtds/web-app_2_3.dtd";>
<web-app>
<servlet>
<servlet-name>simple</servlet-name>
<servlet-class>ca.esys.simple</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>simple</servlet-name>
<url-pattern>/simple</url-pattern>
</servlet-mapping>
</web-app>
----
The behaviour that I see is:
1. The servlet appears to deploy when Tomcat starts up (at least the
logs seem to say so). It appears to find the class libraries.
2. When I run the servlet it simply lists the
${CATALINA_HOME}/webapps/simple directory. The logs seem to indicate
that it maps the URI to the "default" servlet, which lists directories.
It does not run the servlet class that I specify in the web.xml file.
I have tried the following things:
1. I created the following <context> element in the server.xml file to
explicitly define the context (rather than letting it build an implicit
context).
<Context path="/simple" docBase="simple" debug="1" reloadable="true" />
Note that I turned on debugging which elicited the following log entries
in the logs/localhost_log.2003-02-26.txt file.
2003-02-26 10:25:02 StandardContext[/simple]: Mapping contextPath='/simple' with
requestURI='/simple/' and relativeURI='/'
2003-02-26 10:25:02 StandardContext[/simple]: Mapped to servlet 'default' with
servlet path '/' and path info 'null' and update=true
Which seems to confirm the mapping of the URI to the default servlet
rather than the "simple" servlet.
2. The original "simple" class was not part of a package and I had it
placed directly under the "classes" directory. I tried defining it to be
in the ca.esys package and put it under the classes/ca/esys directory, but
that didn't work.
3. I've tried referring to the servlet using the URI's:
localhost:8080/simple
localhost:8080/servlet/simple
The first maps to the default servlet. The second gives a "resource
unavailable" error - which I would expect.
So ...
I am at a loss. Any ideas for things to try would be very helpful. I've
looked at every example I could find and scanned through the list archive
for similar things, but had no luck.
Thanks ahead for any help that you can provide.
Cheers.
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