📄 displayschedulesservlet.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 java.util.Vector;import javax.servlet.http.HttpSession;public class DisplaySchedulesServlet 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(); String depart = request.getParameter("depart"); String arrive = request.getParameter("arrive"); String day = request.getParameter("day"); String month = request.getParameter("month"); String year = request.getParameter("year"); HttpSession session = request.getSession(true); session.setAttribute("day", day); session.setAttribute("month", month); session.setAttribute("year", year); session.setAttribute("depart", depart); session.setAttribute("arrive", arrive); FlightSchedule sch = new FlightSchedule(); Vector flights = sch.getSchedule(depart, arrive, Integer.parseInt(day), Integer.parseInt(month), Integer.parseInt(year)); if((flights == null) || (flights.size() == 0)) { out.println("<html>"); out.println("<head>"); out.println("<title>AA Airways - Ticket Reservation System</title>"); out.println("</head>"); out.println("<body>"); out.println("There are no available flights. Please try another <a href=\"MainServlet\">date </a>"); out.println("</body>"); out.println("</html>"); out.close(); return; } 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>Available flights between " + depart + " and " + arrive + "</h1>"); out.println("Date: " + day + "/" + month + "/" + year); out.println("<form action = \"ClientDataServlet\">"); out.println("<table>"); for(int j = 0; j < flights.size(); j++) { Flight f = (Flight)flights.elementAt(j); out.println("<tr><td>"); out.println("<input type=\"radio\" name=\"group1\" value=\""+ f.getCode() + "\"> " + f.getCode() ); out.println("</td><td>"); out.println("Flight No: " + f.getCode() + " --- Departure at:" + f.getHour()); out.println("</td></tr>"); } out.println("</table>"); out.println("<br><br>"); out.println("<table>"); out.println("<tr><td>How many tickets do you want to buy?</td>"); out.println("<td><input type=\"text\" name=\"quantity\">"); out.println("</td></tr>"); out.println("</table>"); out.println("<input type=\"submit\" value=\"Make Reservation\">"); 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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