contenupanier.java

我的本科课程设计

import java.net.URL;
import java.sql.*;
import javax.servlet.ServletOutputStream;
import javax.servlet.ServletConfig;

import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;

public class ContenuPanier extends HttpServlet {
	
		
//----------------------------------------------------
 public void service(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException
  {
    try
    {
    	// Get the user's session and shopping cart
	HttpSession session = req.getSession(true);
	Panier mon_panier = (Panier)session.getAttribute(session.getId());
    
	
	System.out.println("numero de session: "+session.getId());

        // If the user has no cart, create a new one
       if (mon_panier == null) 
	   	   {
           mon_panier = new Panier();
           session.setAttribute(session.getId(), mon_panier);
           }
					   
	res.setContentType("text/html");
	ServletOutputStream out = res.getOutputStream();		
	
	
	afficherImageTete(out);
	
	if (mon_panier.isEmpty()) 
	{
	out.print("<center><strong>Votre panier est vide</strong></center>");
	
	out.print("<table border=\"0\" width=\"30%\"><tr>"+
    		" <td><a href=\"CatalogOmar\">"+
    		" <img border=\"0\" src=\"../img/retour.gif\""+ 
		    " width=\"132\" height=\"20\"></a></td></tr></table>");
	}
	else
	{
     
	 //on affiche le panier
	 affichePanier(out, mon_panier);

	 		
	}//fin else
	
	out.close();
		
    }
    	
	catch (java.lang.Exception ex)
        {
		// On l鑦e les autres exceptions!.		
		ex.printStackTrace ();
		
		}

        }//end service

private static void affichePanier (ServletOutputStream out, Panier mon_panier) throws Exception
{


// la tete
out.print("<table border=\"0\" width=\"455\">"+
		  "<tr><td width=\"34\" bgcolor=\"#FFF8DF\"></td>"+
    	 " <td width=\"137\" bgcolor=\"#FFF8DF\"><font size=\"2\">Album</font></td>"+
    	 " <td width=\"43\" bgcolor=\"#FFF8DF\"><font size=\"2\">Quantit