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 Servlets; import Beans.statefulBean; import EntityBeans.Car; import Hibernate.HybernateUtil; import java.io.IOException; import java.io.PrintWriter; import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.Date; 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 org.hibernate.Session; import org.hibernate.SessionFactory; import org.joda.time.DateTime; import org.joda.time.Days; import org.joda.time.format.DateTimeFormat; import org.joda.time.format.DateTimeFormatter; /** * * @author bumblebee */ @WebServlet(name = "chooseCarServlet", urlPatterns = { "/chooseCarServlet" }) public class chooseCarServlet 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 { response.setContentType("text/html;charset=UTF-8"); try (PrintWriter out = response.getWriter()) { /* TODO output your page here. You may use following sample code. */ } } // <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 { //the loop checks what button you have clicked //the name of the button is the same as the car id // so that we can get the correct booking info from the database for (int i = 0; i < 1000; i++) { if (request.getParameter("" + i) != null) { System.out.println("the car id you choose: " + i); //connects to the database so that we can get the correct information about the car HybernateUtil hu = new HybernateUtil(); SessionFactory sessionFactory = hu.getSessionFactory(); Session session = sessionFactory.openSession(); session.beginTransaction(); Car c = new Car(); c = (Car) session.get(Car.class, i); session.getTransaction().commit(); //formatting the dates so that we can calculate how many days the client has chosen //calculates the totalprice based on the daily price * the days it is going to be rented //updates the datastorage int price = c.getDailyPrice(); statefulBean sfb = new statefulBean(); String pickUpDate = sfb.getPickUpDate(); String dropOfDate = sfb.getDropOfDate(); System.out.println(pickUpDate + " " + dropOfDate); DateTimeFormatter formatter = DateTimeFormat.forPattern("MM/dd/yyyy"); DateTime first = formatter.parseDateTime(pickUpDate); DateTime second = formatter.parseDateTime(dropOfDate); int dif = 0; dif = Days.daysBetween(first, second).getDays(); System.out.println(dif); price = price * dif; System.out.println(price); //Updates the datastorage some more and sets the attributes for the next page //so that the client knows what he/she is paying for statefulBean stb = new statefulBean(); stb.setCarPrice(price); // request.setAttribute("name", c.getCarName()); // request.setAttribute("addres", c.getCarName()); // request.setAttribute("phone", c.getCarName()); // request.setAttribute("email", c.getCarName()); request.setAttribute("carName", c.getCarName()); request.setAttribute("carType", c.getCarType()); request.setAttribute("carHome", c.getCarHome()); request.setAttribute("carLocation", c.getCarlocation()); request.setAttribute("pickUpDate", pickUpDate); request.setAttribute("dropOdDate", dropOfDate); request.setAttribute("loggedIn", "" + stb.getLoggedIn()); request.setAttribute("carPrice", price); //some more datastorage updates sfb.setCarName(c.getCarName()); sfb.setCarType(c.getCarType()); sfb.setCarHome(c.getCarHome()); sfb.setCarId(c.getIdCar()); request.getRequestDispatcher("confirmPurchase.jsp").forward(request, response); break; } } 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> }