Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package control.ParametrizacionServlets; import java.io.IOException; import java.io.PrintWriter; 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; import modelo.ParametrizacionManagers.DocumentacionRequerida; import org.json.simple.JSONArray; /** * * @author illustrato */ @WebServlet(name = "SeleccionarDocumentacionRequerida", urlPatterns = { "/SeleccionarDocumentacionRequerida" }) public class SeleccionarDocumentacionRequerida extends HttpServlet { /** * Handles the HTTP <code>GET</code> method. * * @param request servlet request * @param response servlet response * @throws ServletException if a servlet-specific error occurs * @throws IOException if an I/O error occurs */ @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doPost(request, response); } /** * Handles the HTTP <code>POST</code> method. * * @param request servlet request * @param response servlet response * @throws ServletException if a servlet-specific error occurs * @throws IOException if an I/O error occurs */ @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { //Obtenemos la opcion int opcion = Integer.parseInt(request.getParameter("opcion")); switch (opcion) { //Obtenemos todas las actividades economicas case 1: { getDocumentacionRequeridas(request, response); } break; //Obtenemos una actividad economica especifica. case 2: { getDocumentacionRequerida(request, response); } break; } } private void getDocumentacionRequeridas(HttpServletRequest request, HttpServletResponse response) { try { String descripcion = request.getParameter("descripcion"); String tipoInforme = request.getParameter("tipoInforme"); //Obtenemos La informacion del manager DocumentacionRequerida manager = new DocumentacionRequerida(); JSONArray jsonArray = manager.getDocumentacionRequerida(descripcion, tipoInforme); //Armamos la respuesta JSON y la enviamos response.setContentType("application/json"); for (Object jsonObject : jsonArray) { response.getWriter().write(jsonObject.toString()); } } catch (Exception ex) { //Logger.getLogger(SeleccionarActEconomica.class.getName()).log(Level.SEVERE, null, ex); } } private void getDocumentacionRequerida(HttpServletRequest request, HttpServletResponse response) { //Obtenemos La informacion del manager try { Integer codigo = Integer.parseInt(request.getParameter("codigo")); Integer tipoInforme = null; DocumentacionRequerida manager = new DocumentacionRequerida(); JSONArray jsonArray = manager.getDocumentacionRequerida(codigo, tipoInforme); //Armamos la respuesta JSON y la enviamos response.setContentType("application/json"); for (Object jsonObject : jsonArray) { response.getWriter().write(jsonObject.toString()); } } catch (Exception ex) { //Logger.getLogger(SeleccionarActEconomica.class.getName()).log(Level.SEVERE, null, ex); } } }