Tomcat 4.1.18 and servlets

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1

I just discovered that in Tomcat 4.1.12 and upwards, the invoker servlet is disabled by default. The effect of this is that servlets which are not explicitly mapped in their webapps/WEB-INF/web.xml file will not be executed (you just get 404 not found).

To fix the problem you can either:

  • Map your servlet to a specific URL in web.xml like this:

    <?xml version="1.0" encoding="ISO-8859-1"?>
<!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>
<servlet-mapping>
<servlet-name>transform</servlet-name>
<url-pattern>/servlet/transform/*</url-pattern>
</servlet-mapping>
</web-app>


    or;

  • Turn on the invoker servlet by changing Tomcat’s conf/web.xml file and uncommenting the Built-In Servlet Mapping for the invoker servlet.

HTH