Most tutorials propose a default JSF configuration similar to the following web.xml:
javax.faces.DEFAULT_SUFFIX&l
you can create url mapping like this create faces-config.xml file in WEB-INF folder
/jsf/demoapp demoapp /demoapp.xhtml
in web.xml you have to do 2 entries
jsfServlets javax.faces.webapp.FacesServlet 1
jsfServlets /jsf/*