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.UsuariosServlets; import java.io.IOException; import java.io.PrintWriter; import java.util.logging.Level; import java.util.logging.Logger; 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.UsuariosManagers.Usuarios; import org.json.simple.JSONArray; import org.json.simple.JSONObject; /** * * @author illustrato */ @WebServlet(name = "EliminarUsuarios", urlPatterns = { "/EliminarUsuarios" }) public class EliminarUsuarios 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 los paramtros enviados int codigo = Integer.parseInt(request.getParameter("codigo")); JSONObject respError = new JSONObject(); // uno significa que no hay error //Obtenemos La informacion del manager Usuarios manager = new Usuarios(); try { //Almacenamos el error que pueda resultar respError = manager.Eliminar(codigo); //Armamos la respuesta JSON y la enviamos response.setContentType("application/json"); response.getWriter().write(respError.toString()); } catch (Exception ex) { respError.put("error", 0); //Armamos la respuesta JSON y la enviamos response.setContentType("application/json"); response.getWriter().write(respError.toString()); } } }