📄 checkoutservlet.java
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package airtickets;import java.io.IOException;import java.io.PrintWriter;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;import javax.servlet.http.HttpSession;import java.util.Vector;public class CheckoutServlet 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"); PrintWriter out = response.getWriter(); HttpSession session = request.getSession(true); ShoppingCart cart = (ShoppingCart)session.getAttribute("ShoppingCart"); try { out.println("<html>"); out.println("<head>"); out.println("<title>AA Airways - Ticket Reservation System</title>"); out.println("</head>"); out.println("<body>"); out.println("<h1>Checkout</h1>"); Vector v = cart.getItems(); for(int j =0; j<v.size(); j++) { Reservation resv = (Reservation)v.elementAt(j); out.println("<b><u>Reservation no. " + j +": </b></u><br>"); out.println("Flight code:" + resv.getFlight_code() +": <br>"); out.println("Quantity:" + resv.getQuantity() +": <br>"); out.println("Passengers: <br><ul>"); Passenger[] pass = resv.getPassengers(); for (int i = 0; i< pass.length; i++) { out.println("<li>" + pass[i].getFullName() + " </li><br>"); } out.println("</ul><br> <br>"); } out.println("<form action=\"exit.html\">"); out.println("If all information is correct, please enter your credit card and press submit to proceed with the reservarion"); out.println("<br>Credit card number: <input type=\"text\" name=\"credit\">"); out.println("<br><input type=\"submit\" value=\"Submit\">"); out.println("</form>"); out.println("</body>"); out.println("</html>"); } finally { out.close(); } } // <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>}⌨️ 快捷键说明
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