modifynumberaction.java

sorry i have only one

package cart.action;

import javax.servlet.*;
import javax.servlet.http.*;
import cart.biz.Cart;

public class ModifyNumberAction implements Action
 {
 	public String execute(HttpServletRequest request,HttpServletResponse response)
	 {
          Cart cart=null;
          try{
            String[] string_productId = request.getParameterValues("item");
            HttpSession session = request.getSession();
            if(session.getAttribute("cart")==null){
            	 cart = new Cart();
            }else{
            	 cart = (Cart)session.getAttribute("cart");
            }
            String[] string_number =request.getParameterValues("number");
            for(int i = 0;i<string_number.length;i++){
            	System.out.println(string_number[i]);
            	int int_number = Integer.parseInt(string_number[i]);
            	System.out.println(int_number);
            	int int_productId = Integer.parseInt(string_productId[i]);
            	cart.modifyNumberByProductId(int_productId,int_number);
            }
             session.setAttribute("cart",cart);
          }catch(Exception e)
          {
            e.printStackTrace();
          }
        return "/cart.jsp";
    	 }
 }