Struts2 and Comet url pattern conflict - url

Question

I am trying to integrate comet chat into my struts2+hibernate application .First I have tested comet chat in separate web application. It works fine .Ihave download it from http://skillshared.blogspot.in/2012/10/facebook-similar-chat-for-your-java-web.html after then I try to implement in my application
My problem in web.xml here is my web.xml file
<context-param>
<param-name>org.apache.tiles.impl.BasicTilesContainer.DEFINITIONS_CONFIG</param-name>
<param-value>/WEB-INF/tiles.xml</param-value>
</context-param>
<listener>
<listener-class>org.apache.struts2.tiles.StrutsTilesListener</listener-class>
</listener>
<display-name>Cometd Test WebApp</display-name>
<filter>
<filter-name>struts2</filter-name>
<filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>
</filter>
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- Portability Filter, needed only to run on non Jetty
or non Servlet-3.0 containers like Tomcat-->
<filter>
<filter-name>continuation</filter-name>
<filter-class>org.eclipse.jetty.continuation.ContinuationFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>continuation</filter-name>
<url-pattern>/cometd/*</url-pattern>
</filter-mapping>
<!-- Cometd Servlet -->
<servlet>
<servlet-name>cometd</servlet-name>
<servlet-class>org.cometd.annotation.AnnotationCometdServlet</servlet-class>
<init-param>
<param-name>timeout</param-name>
<param-value>20000</param-value>
</init-param>
<init-param>
<param-name>interval</param-name>
<param-value>0</param-value>
</init-param>
<init-param>
<param-name>maxInterval</param-name>
<param-value>10000</param-value>
</init-param>
<init-param>
<param-name>maxLazyTimeout</param-name>
<param-value>5000</param-value>
</init-param>
<init-param>
<param-name>long-polling.multiSessionInterval</param-name>
<param-value>2000</param-value>
</init-param>
<init-param>
<param-name>logLevel</param-name>
<param-value>0</param-value>
</init-param>
<init-param>
<param-name>transports</param-name>
<param-value>org.cometd.websocket.server.WebSocketTransport</param-value>
</init-param>
<init-param>
<param-name>services</param-name>
<param-value>com.semika.cometd.ChatService</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>cometd</servlet-name>
<url-pattern>/cometd/*</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
from above code application works fine but chat not working. I saw so posts regarding this problem , I have a solution
<URL-pattern>*.action</URL-pattern>
when I am trying to do this chat works fine but application doesn't work. When I have place application only working.
<url-pattern>/*</url-pattern>
I have tried this one also in struts.xml but no use.
<constant name="struts.action.excludePattern" value="/cometd/*,/cometd/.*"/>
What can be the cause of the problem ?

Answer 1

The whole thing depends on your Struts version. If you have an old version, you should migrate to a new version for many reasons, especially security fixes.
However, considering that:
With Struts >= 2.1.3, the FilterDispatcher is deprecated, and the new StrutsPrepareAndExecuteFilter must be used. Read more
With Struts <= 2.1.6, the struts.action.excludePattern doesn't exist. Read more
your code can't possibly work ;)