The tomcat startup script set's it's own classpath, ignoring the
environment set classpath. This has been the case since tomcat 4.
Tomcat 3 used to be a real headache because of the need to set a
classpath. If I remember correctly, tomcat 3.3 was the first version to
start offering a classloader architecture instead of making people work
the classpath.
Us the -n option of tail to get more log info like tail -n 100
catalina.out. See if you can get more of the log file since there
appears to be an error message in there further up.
--David
cuco2772 wrote:
The guide I've been using for trying to set this up is the coreservlets book
by Marty Hall. He says set the
classpath but the info there is for tomcat 4. Are you saying I could just
get rid of the classpath
environment variable entirely and it wouldn't make any difference ? (I did
set it to where the jvm is)
Here is the output of 2 of my tomcat logs :
[EMAIL PROTECTED]:/usr/local/tomcat/apache-tomcat-6.0.14/logs# tail -f
catalina.out
Jan 9, 2008 1:48:32 PM org.apache.catalina.core.StandardContext start
SEVERE: Context [] startup failed due to previous errors
Jan 9, 2008 1:48:32 PM org.apache.coyote.http11.Http11Protocol start
INFO: Starting Coyote HTTP/1.1 on http-8080
Jan 9, 2008 1:48:32 PM org.apache.jk.common.ChannelSocket init
INFO: JK: ajp13 listening on /0.0.0.0:8009
Jan 9, 2008 1:48:32 PM org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/36 config=null
Jan 9, 2008 1:48:32 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 1455 ms
[EMAIL PROTECTED]:/usr/local/tomcat/apache-tomcat-6.0.14/logs# tail -f
catalina.2008-01-09.log
Jan 9, 2008 1:48:32 PM org.apache.catalina.core.StandardContext start
SEVERE: Context [] startup failed due to previous errors
Jan 9, 2008 1:48:32 PM org.apache.coyote.http11.Http11Protocol start
INFO: Starting Coyote HTTP/1.1 on http-8080
Jan 9, 2008 1:48:32 PM org.apache.jk.common.ChannelSocket init
INFO: JK: ajp13 listening on /0.0.0.0:8009
Jan 9, 2008 1:48:32 PM org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/36 config=null
Jan 9, 2008 1:48:32 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 1455 ms
So its saying Context startup failed, but I have no idea how to determine
what the 'previous errors' are.
FWIW, I am running tomcat through apache, not as a stand alone server.
David Smith-2 wrote:
Messing with the classpath will bring you nothing but pain and misery.
I would strongly recommend you leave it alone.
Also the servlet mappings are relative to the context so your good on
that front as well.
Are there any messages in your tomcat logs regarding the request? Are
you sure the webapp is running after you restart tomcat?
--David
cuco2772 wrote:
error from tomcat. Here is my web.xml:
<servlet>
<servlet-name>HelloServlet</servlet-name>
<servlet-class>HelloServlet</servlet-class>
</servlet>
<servlet>
<servlet-name>HelloServlet2</servlet-name>
<servlet-class>coreservlets.HelloServlet2</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>HelloServlet</servlet-name>
<url-pattern>/classes/HelloServlet</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>HelloServlet2</servlet-name>
<url-pattern>/classes/coreservlets.HelloServlet2</url-pattern>
</servlet-mapping>
</web-app>
when I went to the following urls after I had edited web.xml to the above,
http://localhost:8080/cucoweb/classes/coreservlets.HelloServlet2
http://localhost:8080/cucoweb/classes/HelloServlet
I go the expected results, ie, 'Hello(2)' and 'Hello'. Then I shutdown
tomcat and restarted it.
And when i tried to access those 2 urls again, I got the above error.
(Actually I had the same web.xml before except that it didnt have the
/classes in front in the
url-pattern. I was able to access it by the same url - without the
/classes
- and then the next day
when started tomcat and tried to access it, it didnt work, same error.)
In this example, cucoweb is the context root, correct ? Shouldn't the
url-pattern be relative to the
context root ? Thats how I have it now, I think.
Would adding my webapp directory, ie cucoweb/classes, to my CLASSPATH help
?
I'm in ubuntu, when I do echo $CLASSPATH, I get :
.:/usr/lib/jvm/java-6-sun-1.6.0.00/lib:/usr/lib/jvm/java-6-sun-1.6.0.00/imq/lib/:/usr/lib/jvm/java-6-sun-1.6.0.00/jre/lib
I havent tried this yet because doing this is kind of tricky in ubuntu.
(You
have etc/environment and
bash.bashrc, for ex.) But if I try that and it works I will post about it.
I
suspect its something else,
though, because it worked once, before restarting tomcat, thats why I'm
posting here first.
Any info, even educated guesses, would be greatly appreciated. Thanks in
advance.
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