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package src;
import java.io.IOException;
import java.util.List;
import javax.ejb.EJB;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import model.Asignatura;
import model.Profesor;
/**
* Servlet implementation class MenuPrincipalServlet
*/
@WebServlet(name = "MenuPrincipalServlet", urlPatterns = "")
public class MenuPrincipalServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
@PersistenceContext
EntityManager em;
/**
* @see HttpServlet#HttpServlet()
*/
public MenuPrincipalServlet() {
super();
// TODO Auto-generated constructor stub
}
/**
* @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
*/
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// TODO Auto-generated method stub
response.setContentType("text/html;charset=UTF-8");
Profesor profesor = (Profesor)request.getSession().getAttribute("profesor");
Profesor profTemp = em.find(Profesor.class, profesor.getIdProfesor());
List<Asignatura> asignaturas = em.createQuery("select a from Asignatura a where a.profesor = :profesor ").setParameter("profesor", profTemp).getResultList();
request.setAttribute("lista_asignatura", asignaturas);
RequestDispatcher rd = getServletContext().getRequestDispatcher("/menu_principal.jsp");
rd.forward(request, response);
}
}
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