HashMap to HTML?

[Henna Ghayas]

I am making a shopping cart java program and what I want to do is be able to add to cart and it will display the item. When i add a new item i want it to stack one after another. I tried this in a servlet and i used a for loop to get it to work the way I wanted to, but I want the hashmap values of name and price to be posted on to the html page that i created. Is this possible?

@RequestMapping(value="/index")
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws Exception {
                    HttpSession session = request.getSession();
                Cart shoppingCart;
                shoppingCart = (Cart) session.getAttribute("cart");
                if(shoppingCart == null){
                       shoppingCart = new Cart();
                       session.setAttribute("cart", shoppingCart);
                }
                String name = request.getParameter("name");
                Integer price = Integer.parseInt(request.getParameter("price"));
                shoppingCart.addToCart(name, price);
                session.setAttribute("cart", shoppingCart);
               
                HashMap<String, Integer> items = shoppingCart.getCartItems();
       }	
}

this is the for loop I used before

for(String key: items.keySet()){
out.println("<form action='DeleteItem'><input type='hidden' name='name' value='"+key+"'>
<tr><td>"+key+" - </td><td>"+"$"+items.get(key)+"</td>
<td><input type='submit' value='delete'></td></tr></form>");
}

[Bear Bibeault]

Why aren't you using JSP to generate the views? Doing so in Java strings in a servlet is almost impossible to do correctly, in addition to just being a flat-out poor practice.

Is this for an assignment where you can't use JSP?

[Ron McLeod]

I totally agree with Bear - don't embed the HTML in your servlet.  Spend a couple of hours learning JSP and JSTL - the payoff will be greater than the investment.

[Rob Spoor]

Also, prefer to iterate over the entrySet() and then get the key and value of each entry instead of iterating over the keySet() and then using get(key).