I just started exploring Java Servlets and JSP and am a little confused about the sessions object. Inside a servlet I have this:

public class SampleServlet extends HttpServlet {

    public void doPost(HttpServletRequest request, HttpServletResponse response)
    throws IOException {

        HttpSession session = request.getSession(true);
        session.setAttribute("_session", "_value");
                response.sendRedirect("page2.jsp");         
        }
}

Now, inside page2.jsp, there is a session object as well, but when I do this

<%
out.print(session.getAttribute("_session"))
%>

it gives me an error. Can someone tell me the right way of doing this? As to what I am trying to do, I want to share some session variables.