Aha, that fixes it.

Thanks for that explanation, I had completely missed that about the url-pattern 
being relative to the webapp.  I clearly need to un-confuse myself about 
servlet-mapping.

Thank you!

-Tod

On Sep 18, 2011, at 2:19 PM, André Warnier wrote:

> Hi.
> 
> Change the <url-pattern> of your test application, to be exactly the same as 
> the 
> <url-pattern> of the production application.
> 
> And invoke it as "http://yourhost.cpy.com/testvsb/";, followed by the same 
> "rest of URL" as 
> what you use for the main application.
> 
> Brief explanation : the <url-pattern> is *relative* to the "webapp name".  
> The "webapp 
> name" is the name of your application's directory (in other words, the name 
> of the first 
> directory level under (tomcat_dir)/webapps/).
> 
> .. Except one special case : the "default application" lives under the path 
> (tomcat_dir)/webapps/ROOT/ (in capitals), but its "webapp name" is "/".
> 
> If the above does not work, then show us how the directory structure under 
> (tomcat_dir)/webapps/ looks like, and which URL you use to access the 
> production application.
> 
> 
> 
> Tod Olson wrote:
>> I would like to run two versions of the same servlet (same servlet-class, 
>> but with different WAR filename, servlet-name and url-pattern) under a 
>> single instance of Tomcat 6.0.33.  Basically, the aim  is to run both test 
>> and production versions of the servlet under the same instance.  Better to 
>> run them under separate instances, but getting a suitable second instance is 
>> proving difficult.  I thought that the same servlet-class would be fine as 
>> long as the servlet-name and url-pattern were different, but does not seem 
>> to be enough.
>> 
>> The problem I encounter is that while the production version is deployed by 
>> Tomcat just fine, the test version is not loaded. The test version is 
>> unbundled in web apps directory and there is a deployment message in the 
>> catalina log, but when I point a web browser to the servlet, the result is 
>> just HTTP 404 error: "The requested resource (/testvsb/) is not available."  
>> 
>> I've been unable to find any kind of useful debugging clues in the catalina 
>> logs, like a servlet deployment or invocation error, but my knowledge of 
>> Tomcat is meagre.
>> 
>> The web.xml files for the two servlets are included below, in case they are 
>> of interest. The init-param sections are the same because I'm still testing 
>> out the two-servlets-in-one-tomcat concept on my laptop.
>> 
>> Any ideas or advice on how to proceed would be appreciated.
>> 
>> -Tod
>> 
>> 
>> Tod Olson <t...@uchicago.edu>
>> Systems Librarian     
>> University of Chicago Library
>> 
>> 
>> browse.war
>> browse/WEB-INF/web.xml
>> 
>> <?xml version="1.0" encoding="UTF-8"?>
>> <web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"; 
>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; 
>> xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
>> http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd";>
>> 
>>   <servlet>
>>     <servlet-name>Browse</servlet-name>
>>      <servlet-class>edu.ncsu.lib.browse.Browse</servlet-class>
>>      <init-param>
>>      <param-name>vsiUrl</param-name>
>>      
>> <param-value>http://localhost/~tod/virtualshelfindex/handler/</param-value>
>>      <!-- <param-value>http://your.url.here/virtualshelfindex/</param-value> 
>> -->
>>      <!-- 
>> <param-value>http://webdev.lib.ncsu.edu/virtualshelfindex/</param-value>  -->
>>      </init-param>
>>     <init-param>
>>       <param-name>libraryName</param-name>
>>       <param-value>The University of Chicago Library</param-value>
>>     </init-param>
>>     <init-param>
>>       <param-name>libraryShortName</param-name>
>>       <param-value>UChicago</param-value>
>>     </init-param>
>>     <init-param>
>>       <param-name>catalogBaseUrl</param-name>
>>       <param-value>http://notus.lib.uchicago.edu/staging/</param-value>
>>     </init-param>
>> 
>>   </servlet>
>> 
>>  <servlet-mapping>
>>    <servlet-name>Browse</servlet-name>
>>    <url-pattern>/browse/*</url-pattern>
>>  </servlet-mapping>
>> 
>>  <session-config>
>>    <session-timeout>
>>            30
>>        </session-timeout>
>>  </session-config>
>>  <welcome-file-list>
>>    <welcome-file>
>>            browse
>>        </welcome-file>
>>  </welcome-file-list>
>> <error-page>
>>      <exception-type>
>>              java.lang.Exception
>>      </exception-type>
>>      <location>
>>              /jsp/error.jsp
>>      </location>
>>  </error-page>
>> </web-app>
>> 
>> 
>> testvsb.war:
>> testvsb/WEB-INF/web.xml
>> 
>> <?xml version="1.0" encoding="UTF-8"?>
>> <web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"; 
>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; 
>> xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
>> http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd";>
>> 
>>   <servlet>
>>     <servlet-name>TestVSB</servlet-name>
>>      <servlet-class>edu.ncsu.lib.browse.Browse</servlet-class>
>>      <init-param>
>>      <param-name>vsiUrl</param-name>
>>      
>> <param-value>http://localhost/~tod/virtualshelfindex/handler/</param-value>
>>      <!-- <param-value>http://your.url.here/virtualshelfindex/</param-value> 
>> -->
>>      <!-- 
>> <param-value>http://webdev.lib.ncsu.edu/virtualshelfindex/</param-value>  -->
>>      </init-param>
>>     <init-param>
>>       <param-name>libraryName</param-name>
>>       <param-value>The University of Chicago Library</param-value>
>>     </init-param>
>>     <init-param>
>>       <param-name>libraryShortName</param-name>
>>       <param-value>UChicago</param-value>
>>     </init-param>
>>     <init-param>
>>       <param-name>catalogBaseUrl</param-name>
>>       <param-value>http://notus.lib.uchicago.edu/staging/</param-value>
>>     </init-param>
>> 
>>   </servlet>
>> 
>>  <servlet-mapping>
>>    <servlet-name>TestVSB</servlet-name>
>>    <url-pattern>/testvsb/*</url-pattern>
>>  </servlet-mapping>
>> 
>>  <session-config>
>>    <session-timeout>
>>            30
>>        </session-timeout>
>>  </session-config>
>>  <welcome-file-list>
>>    <welcome-file>
>>            browse
>>        </welcome-file>
>>  </welcome-file-list>
>> <error-page>
>>      <exception-type>
>>              java.lang.Exception
>>      </exception-type>
>>      <location>
>>              /jsp/error.jsp
>>      </location>
>>  </error-page>
>> </web-app>
>> 
>> 
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