The following example illustrates the web.xml entries that you make for packaging a JAX-RS application, which contains both Application and web.xml. This example uses com.packtpub.rest.ch4.service.HRApplication as the application subclass. The following web.xml file shows the configuration entries that you may need to add for deploying into a servlet 2.x container. If there are multiple application subclasses, then you will need to configure them separately:

<web-app ... > 
    <servlet> 
        <servlet-name>jaxrs.servlet</servlet-name> 
 
        <!-- Set this to fully qualified name of the  
        Servlet offered by the JAX-RS runtime --> 
        <servlet-class> 
        org.glassfish.jersey.servlet.ServletContainer 
        </servlet-class> 
 
        <!-- Set this element to define the class that  
       extends the javax.ws.rs.core.Application --> 
        <init-param> 
            <param-name>javax.ws.rs.Application</param-name> 
            <param-value> 
             com.packtpub.rest.ch4.service.HRApplication 
            </param-value> 
        </init-param> 
        <!--Use init params as appropriate--> 
        <load-on-startup>1</load-on-startup> 
    </servlet> 
    <servlet-mapping> 
        <servlet-name>jaxrs.servlet</servlet-name> 
        <url-pattern>/webresources/*</url-pattern> 
    </servlet-mapping> 
</web-app>