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 Servlet; import hibernatePersistent.fashionista.Fashionista; import hibernatePersistent.fashionista.FashionistaDAO; import java.io.IOException; import java.io.PrintWriter; import java.util.List; 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 org.json.JSONArray; import org.json.JSONObject; @WebServlet(name = "ListaFashionista", urlPatterns = { "/ListaFashionista" }) public class ListaFashionista extends HttpServlet { /** * Processes requests for both HTTP <code>GET</code> and <code>POST</code> * methods. * * @param request servlet request * @param response servlet response * @throws ServletException if a servlet-specific error occurs * @throws IOException if an I/O error occurs */ protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { FashionistaDAO fashiondao = new FashionistaDAO(); if (request.getParameterValues("nome") == null) { List<Fashionista> fashionistas = fashiondao.listFashionista(); request.getSession(true).setAttribute("fashionistas", fashionistas); response.sendRedirect("listaTotal.jsp"); } else { List<Fashionista> fashionistas = fashiondao .listFashionistaByName(request.getParameterValues("nome")[0].toString()); response.setContentType("application/json"); response.setCharacterEncoding("utf-8"); PrintWriter out = response.getWriter(); JSONArray jsonArray = new JSONArray(); for (Fashionista fashionista : fashionistas) { JSONObject json = new JSONObject(); json.put("nome", fashionista.getNome()); jsonArray.put(json); } out.print(jsonArray.toString()); } } // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code."> /** * 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 { processRequest(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 { processRequest(request, response); } /** * Returns a short description of the servlet. * * @return a String containing servlet description */ @Override public String getServletInfo() { return "Short description"; }// </editor-fold> }