neworder.java

网络商店源代码用NetBeans6.1Beta开发

package servlet;

import java.io.*;
import java.net.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.*;
import org.apache.commons.lang.StringEscapeUtils;

import model.*;
import util.*;

public class NewOrder extends HttpServlet {

    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();

        ProductsBean pb = (ProductsBean) session.getAttribute("pb");
        if (pb == null) {
            pb = new ProductsBean();
            session.setAttribute("pb", pb);
        }
        OrdersBean ob = (OrdersBean) session.getAttribute("ob");
        if (ob == null) {
            ob = new OrdersBean();
            session.setAttribute("ob", ob);
        }

        String tf = request.getParameter("tf");
        String id = request.getParameter("product");
        String user = request.getParameter("username");
        String raw_button = request.getParameter("raw_button");

        String tf_esc = StringEscapeUtils.escapeHtml(tf);
        String id_esc = StringEscapeUtils.escapeHtml(id);
        String user_esc = StringEscapeUtils.escapeHtml(user);

        String tf_ins;
        String user_ins;
        String id_ins;
        if (raw_button != null) {

            tf_ins = tf;
            user_ins = user;
            id_ins = id;
        } else {

            tf_ins = tf_esc;
            id_ins = id_esc;
            user_ins = user_esc;
        }

        try {
            if (!user.equals("") && !tf_ins.equals("")) {
            out.println("<p>This is your order!</p>");
            Integer num = Integer.parseInt(tf_ins);
            Integer id1 = Integer.parseInt(id_ins);
            Product p = pb.find(id1);
            List<OrderItem> what_ordered;
            Order order;

           
            user = user_ins;
            what_ordered = new ArrayList<OrderItem>();
            what_ordered.add(new OrderItem(id1, num, p.getPrice()));
            out.println(user);

            order = new Order(user.toUpperCase(), what_ordered);

           
                ob.create(order);

                List<Order> all = ob.findUser(user);
                for (Order o : all) {
                    out.println("<hr />");

                    util.OrderHelper.printOrder(o, pb, out);
                }
            } else {
                out.println("Username and amount cannot be empty!");
            }


        } catch (Exception x) {
            x.printStackTrace();
        } 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
     */
    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
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     */
    public String getServletInfo() {
        return "Short description";
    }
    // </editor-fold>
}