addcartitemtocartaction.java

sorry i have only one

package cart.action;

import cart.biz.*;
import cart.action.*;
import cart.model.Product;
import cart.model.Item;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.*;

public class AddCartItemToCartAction implements Action
 {
 	CartBiz cab=new CartBiz();
	Cart cart=null;
 	public String execute(HttpServletRequest request,HttpServletResponse response)
	 {
	        HttpSession session=request.getSession(true);
		if(session.getAttribute("cart")==null)
		   cart=new Cart();
		else
		   cart=(Cart)session.getAttribute("cart");
	 	int productid=Integer.parseInt(request.getParameter("productId"));
		Product product=null;
		try
		 {
		    product=cab.getProductById(productid);
		    if(session.getAttribute("cart")==null)   
		     {
		     	System.out.println("------->>>>>>>>>>>>1111111111");
		       HashMap items=new HashMap();
		       cart.setCartItem(items);
		       cart.addItem(product,1);
		     }else{
		       HashMap t_items=cart.getCartItem();
		       Integer request_id=new Integer(request.getParameter("productId"));		   
		       Set set=t_items.keySet();
		       Iterator it=set.iterator();
		       boolean flag=false;
		       while(it.hasNext()){
			    int productId=((Integer)it.next()).intValue();
			    if(productId==request_id.intValue())
			     {
			     	flag=true;
				System.out.println("------->>>>>>>>>>>>22222222222");
				Item item=(Item)t_items.get(request_id);
				int t_number=item.getNumber()+1;
				item.setNumber(t_number);
				item.setCost(item.getProduct().getPrice()*t_number);
				System.out.println(item.getNumber());
				t_items.put(request_id,item);
				cart.setCartItem(t_items);
			     }
			 }
			 if(flag==false){
			    System.out.println("------->>>>>>>>>>>>33333333333");
		            cart.addItem(product,1);
			 }
		      }
		 }catch(Exception e){e.printStackTrace();}	
		session.setAttribute("cart",cart);
	 	return "/cart.jsp";
	 }
 }