Write Files through return channel

Question

Hi,
i'm newer in this forum. I'm working in a MHP project, and I want to comunicate STB with the server (in this case, a PC running Apache Server).
The question is �can I write a file in the server with data obtained on the STB? I think that it is posible via return channel, but i'm not sure. The idea is to write file (on the server) with the solutions entered by TV user in an application that have some tests. �Are other ways besides return channel to do it?
Thanks ;)
Regards

Answer 1

Hello here you an example of login in my application:
package es.admin.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import es.admin.bd.PacienteBD;
import es.admin.beans.Paciente;
import es.admin.dao.PacienteDAO;
* Servlet implementation class for Servlet: LoginPatient
public class LoginPatient extends javax.servlet.http.HttpServlet implements javax.servlet.Servlet {
   static final long serialVersionUID = 1L;
    /* (non-Java-doc)
      * @see javax.servlet.http.HttpServlet#HttpServlet()
     public LoginPatient() {
          super();
     /* (non-Java-doc)
      * @see javax.servlet.http.HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
     protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
          // TODO Auto-generated method stub
          processRequest(request,response);
     /* (non-Java-doc)
      * @see javax.servlet.http.HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
     protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
          // TODO Auto-generated method stub
          processRequest(request,response);
     private void processRequest(HttpServletRequest request,HttpServletResponse response) throws IOException
          Paciente paciente = new Paciente();
          paciente.setDni(request.getParameter("dni"));
          paciente.setContrasenia(request.getParameter("contrasenia"));
          boolean ok = PacienteBD.compruebaPaciente(paciente.getDni(),paciente.getContrasenia());
          response.setContentType("text/plain;charset=UTF-8");
          PrintWriter p = response.getWriter();
          if (ok)
               p.println("true");
          else
               p.print("false");
public class PacienteBD {
     public static boolean compruebaPaciente(String dni,String password)
          boolean correcto = false;
          Paciente aux = PacienteDAO.BuscarPaciente(dni);
          if ((aux!=null)&&(aux.getContrasenia().equals(password)))
               correcto = true;
          return correcto;
}then you use from the java code :
new URL ("http://admin/login?usuario=xxx&passw=xxx")
thats all