Java tutorial
/* * Copyright Sushil Kumar <0120sushil@gmail.com>. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * http://www.apache.org/licenses/LICENSE-2.0 * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * under the License. */ package me.uni.sushilkumar.geodine.util; import java.io.IOException; import java.io.PrintWriter; import java.util.ArrayList; import java.util.logging.Level; import java.util.logging.Logger; import javax.servlet.RequestDispatcher; 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 me.uni.sushilkumar.geodine.db.DBConnection; import org.json.simple.parser.ParseException; /** * * @author Sushil Kumar <0120sushil@gmail.com> */ @WebServlet(name = "CuisineHandler", urlPatterns = { "/cuisine/*" }) public class CuisineHandler 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, ParseException { //response.setContentType("text/html;charset=UTF-8"); //PrintWriter out = response.getWriter(); DBConnection con = null; String path = request.getRequestURI(); int index = path.lastIndexOf("/"); String cuisine = path.substring(index + 1); cuisine = cuisine.replace("-", " "); con = new DBConnection(); CuisineObject obj = con.getCuisineData(cuisine); String name = obj.getName(); String country = obj.getCountry(); String ytid = obj.getYtid(); ArrayList<String> directions = obj.getDirections(); ArrayList<String> ingredients = obj.getIngredients(); request.setAttribute("name", name); request.setAttribute("country", country); request.setAttribute("directions", directions); request.setAttribute("ingredients", ingredients); request.setAttribute("ytid", ytid); RequestDispatcher rd = request.getRequestDispatcher("/WEB-INF/recipe.jsp"); rd.forward(request, response); } // <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 { try { processRequest(request, response); } catch (ParseException ex) { Logger.getLogger(CuisineHandler.class.getName()).log(Level.SEVERE, null, ex); } } /** * 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 { try { processRequest(request, response); } catch (ParseException ex) { Logger.getLogger(CuisineHandler.class.getName()).log(Level.SEVERE, null, ex); } } /** * Returns a short description of the servlet. * * @return a String containing servlet description */ @Override public String getServletInfo() { return "Short description"; }// </editor-fold> }