Insert multiple records help

Question

Hello all! I have implemented a simple shoppingcart (not for commercial purposes) and I would like to help me with the following code. When a user makes shopping, the items appear in a table with the use of a java servlet with arraylist.. When the user checkouts, I want to call a servlet that it will enter the items of shoppingcart (multiple records) in a table in my db (I use mysql). I have tried to write the following code but it doesn't work. Can you give me some hints how to achieve this?
Sorry for my possible error codes but I m new in programming and I m trying to find the way..
Thanx a lot for your help,
danny
import java.sql.*;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.ArrayList;
public class Checkout extends HttpServlet {
public void doGet(HttpServletRequest req, HttpServletResponse res)
          throws ServletException, IOException {
res.setContentType("text/html");
PrintWriter out = res.getWriter();
String[] itemsSelected;
String[] priceSelected;
String[] quantitySelected;
itemsSelected = req.getParameterValues("productname");
priceSelected = req.getParameterValues("price");
quantitySelected = req.getParameterValues("quantity");
// connecting to database
Connection con = null;
Statement stmt = null;
PreparedStatement ps = null;
try {
     //db connection
String sql;
sql = "INSERT INTO order (productname, price, quantity) VALUES (?,?,?)";
ps = con.prepareStatement(sql);
stmt = con.createStatement();
for (int i = 0; i < itemsSelected.length; i++) {
=
  ps.setString(1, itemsSelected[ i ]);
  ps.setString(2, priceSelected[ i ]);
  ps.setString(3, quantitySelected[ i ]);
       ps.executeUpdate();
   } catch (SQLException e) {
      throw new ServletException(e);
   } catch (ClassNotFoundException e) {
    throw new ServletException(e);
     } finally {
     try {
          if(stmt != null)
          stmt.close();
          if(ps != null)
          ps.close();
          if(con != null)
          con.close();
          } catch (SQLException e) {}
          out.close();
}Message was edited by:
danny44

Answer 1

Well, after some tests I did, I understood that the variables have not be passed from the shoppingcart servlet to checkout. I declared the variables for 1 product (+productname+) ,not the array, as[b] hidden values in the shoppingcart servlet and when user clicked checkout button, checkout servlet was called and my db was updated succesfully. My problem is now, how all the products in the shopping cart can be successfully entered in the db because I receive only the last one product everytime I checkout. I think that I will probably have to declare the whole array of products and not the one string in my hidden values but I dont know how..
If you have a solution to this, please help me.. I m new in java and I have read a lot to create my code and build my project so every help will be valuable for me to continue...
Thanx again