How to hide .xhtml extension from URL - jsf-2

Question

In JSF 2.0, how can I hide .xhtml extension from URL? Can this be configured in web.xml?
I just want to change current URL "http://localhost:8080/sms/faces/admin/account/process_monthly_fee.xhtml" to ".../process_monthly_fee.jsf".
Adding following context parameter in to web.xml does not solve my problem but my application displays nothing:
<context-param>
<param-name>javax.faces.FACELETS_VIEW_MAPPINGS</param-name>
<param-value>*.jspx</param-value>
</context-param>
OR
<context-param>
<param-name>javax.faces.DEFAULT_SUFFIX</param-name>
<param-value>.jspx</param-value>
</context-param>
my web.xml file is like this :
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<display-name>School Management System</display-name>
<welcome-file-list>
<welcome-file>faces/index.xhtml</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>/faces/*</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>upload</servlet-name>
<servlet-class>com.sms.model.student.Upload</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>upload</servlet-name>
<url-pattern>/Upload</url-pattern>
</servlet-mapping>
<servlet>
<servlet-name>marks</servlet-name>
<servlet-class>com.sms.student.service.Mark</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>marks</servlet-name>
<url-pattern>/marks</url-pattern>
</servlet-mapping>
<error-page>
<exception-type>java.lang.Exception</exception-type>
<location>/error/error.xhtml</location>
</error-page>
<session-config>
<session-timeout>30</session-timeout>
</session-config>
<filter>
<filter-name>Extensions Filter</filter-name>
<filter-class>org.apache.myfaces.webapp.filter.ExtensionsFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>Extensions Filter</filter-name>
<servlet-name>Faces Servlet</servlet-name>
</filter-mapping>
<context-param>
<param-name>org.richfaces.skin</param-name>
<param-value>classic</param-value>
</context-param>
<context-param>
<param-name>org.richfaces.enableControlSkinning</param-name>
<param-value>true</param-value>
</context-param>
</web-app>

Answer 1

If you want to just change the extension, follow the advice in the link provided by #Captain Giraffe.
To completely hide the extensions, you can use either PrettyFaces or OmniFaces.
The OmniFaces showcase features an example.
EDIT: I suppose the link provided by #Captain Giraffe solved a different issue - how to have files with a different extension then .xhtml to get picked up by JSF.
If you want to change the extension at the end of your URL, you can add this to your web.xml:
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.foo</url-pattern>
</servlet-mapping>
From now on, your pages will be accessible as /YourApplicationRoot/pagename.foo

Answer 2

You just need to add following code in web.xml
<servlet>
<servlet-name>faces</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>faces</servlet-name>
<url-pattern>*.xhtml</url-pattern>
</servlet-mapping>
<context-param>
<param-name>org.omnifaces.FACES_VIEWS_SCAN_PATHS</param-name>
<param-value>/*.xhtml</param-value>
</context-param>
and add omnifaces dependency in pom.xml
<dependency>
<groupId>org.omnifaces</groupId>
<artifactId>omnifaces</artifactId>
<version>2.6.6</version>
</dependency>
It will hide .xhtml extension from the url.

Answer 3

There is a way to use Dispatcher View pattern in which it is possible to map any url to any xhtml page (from /WEB-INF).
For exampe, url http://localhost:8080/sms/faces/admin/account/process_m_fee could be forwarded to /WEB-INF/faces/admin/account/process_monthly_fee.xhtml.
So url-s to and on jsf pages could be without .xhtml extension.
You may look details here (also look last comment)