Guardar.java

package mensajes2;

import java.io.IOException;
import java.sql.SQLException;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * Servlet implementation class Guardar
 */
@WebServlet(name = "Mensajes2Guardar", urlPatterns = { "/mensajes2/Mensajes2Guardar" })
public class Guardar extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public Guardar() {
        super();
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		processRequest (request, response);
	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		processRequest (request, response);
	}

	private void processRequest(HttpServletRequest request,
			HttpServletResponse response) throws IOException {
		Persistencia persistencia = Persistencia.getInstance();
		
		Mensaje msg = (Mensaje) request.getAttribute("msg");
		try {
			persistencia.create(msg);
		} catch (SQLException e) {
			e.printStackTrace();
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		response.sendRedirect("index.html");
	}
}