DisplayServlet in Tomcat 4.1.12

[Ram]

Hi

I have been using JFree chart for my project . The charts were working great in Tomcat 3.2.3.

Recently we upgraded to Tomcat 4.1.12. Now I dont see the graphs on the browser.
I have added this in the web.xml

<servlet>
<servlet-name>DisplayChart</servlet-name>
<servlet-class>com.jrefinery.chart.servlet.DisplayChart</servlet-class>
</servlet>

The one difference I noticed was there was no temp folder in Tomcat 3.2.3 and I do have a temp folder in Tomcat 4.1.12. I can also see the graphs generated in this folder. I am not able to stream it back to the browser. Can any one suggest where am I going wrong . Should i add any params in my web.xml.

I have my Jfreechart.jar in CATALINA_HOME/webapps/myapp/WEB_INF/lib.

Thanks in Advance.

Ram

[Richard Atkinson]

You need to add the following lines in your web.xml after your servlet definitions.

<servlet-mapping>
<servlet-name>DisplayChart</servlet-name>
<url-pattern>/servlet/DisplayChart</url-pattern>
</servlet-mapping>

In Tomcat versions before 4.1.x there was an implicit mapping of servlets to /servlet/[SERVLET_NAME]. However this was not part of the servlet specification and this implicit mapping was removed in the latest version. Consequently you need to make sure you specify the mapping in order for the servlet to be correct invoked.

Regards,
Richard...

[Ram]

Hi

Thanks for the early response.
I added the servlet mapping and it just works great again.



Thanks again

Ram