Spring Mvc display session in jsp - spring

Question

I have created a simple shopping cart project using spring framework. I've created a button add to cart so that when clicked it will create session of that item. I have following codes
<button href="/addcart/1">Add to button</button>
This is my controller
#RequestMapping("/addcart/{id}")
public ModelAndView goCart(#PathVariable("id")int id,HttpServletRequest request, HttpSession session) {
List<CartItem> cart = new ArrayList<CartItem>();
cart.add(new CartItem(productService.findProductCart(id),1));
session.setAttribute("cart", cart);
ModelAndView model = new ModelAndView();
model.setViewName("cart");
return model;
}
this is my CartItem class
public class CartItem {
private List<Product> product;
private int quantity;
public List<Product> getProduct() {
return product;
}
public void setProduct(List<Product> product) {
this.product = product;
}
public int getQuantity() {
return quantity;
}
public void setQuantity(int quantity) {
this.quantity = quantity;
}
public CartItem(List<Product> product, int quantity) {
super();
this.product = product;
this.quantity = quantity;
}
public CartItem() {
super();
}
}
this is my Product class
public class Product {
private int pid;
private String productName;
private int unitPrice;
public int getPid() {
return pid;
}
public void setPid(int pid) {
this.pid = pid;
}
public String getProductName() {
return productName;
}
public void setProductName(String productName) {
this.productName = productName;
}
public int getUnitPrice() {
return unitPrice;
}
public void setUnitPrice(int unitPrice) {
this.unitPrice = unitPrice;
}
}
I've a productServiceImpl class of this productDaoImpl
#Override
public List<Product> findProductCart(int id) {
List<Product> cartProduct = new ArrayList<Product>();
String sql = "select * from product where pid= " + id;
JdbcTemplate jdbcTemplate = new JdbcTemplate(dataSource);
cartProduct = jdbcTemplate.query(sql, new ProductRowMapper());
return cartProduct;
}
I've view in jsp with following code
<c:forEach var="item" items="${sessionScope.cart}">
<li>${item.quantity}</li>
<li>${item}</li>
</c:forEach>
this give
1
com.sparktronix.mvc.domain.CartItem#344e01
How to display session value productname and unitprice? Any suggestion are welcomed. Thanks in advance

Answer 1

You are almost there! You just have to get the product object from sessionScope and iterate once again like below.
<c:forEach var="item" items="${sessionScope.cart}">
<li>${item.quantity}</li>
<c:forEach items = "${item.product}" var="product">
<li>${product.productName}</li>
<li>${product.unitPrice}</li>
</c:forEach>
</c:forEach>
Hope this helps!