My hibernate project doesnt work when i choose apache instead of glassfish

I am using netbeans 6.9.1 to develop a project using frameworks Hibernate 3.2.5 and JavaServer Faces, i probably followed this tutorial

http://netbeans.org/kb/docs/web/hibernate-webapp.html

In this tutorial it uses GlassFish 3 to setup the p开发者_JS百科roject which i did as well and it works fine. But when i deployed it to my server on apache tomcat 7, it gives this error "Class DBws.DBws is not a Servlet"

I changed the server from glassfish to apache in netbeans and it started giving error in file on this location

import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
import javax.faces.model.DataModel;
import javax.faces.model.ListDataModel;

with a red line under javax, what to do now, thanks

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Add jsf libraries in your WEB-INF/lib folder, libraries can be found here.

Glassfish by default has those libraries but I guess tom-cat doesn't.