We are going to add a shopping cart facility in two phases. Firstly, we will create a REST-style controller to handle all shopping-cart-related web requests. Secondly, we will add some JavaScript code to render the JSON data returned by the REST web service controller. First, let's implement some RESTful web services using Spring MVC controllers so that later we can add some JavaScript code to consume those web services.
Create a domain class named
CartItemunder the packagecom.packt.webstore.domainin the source foldersrc/main/java; then, add the following code to it:package com.packt.webstore.domain; import java.math.BigDecimal; public class CartItem { private Product product; private int quantity; private BigDecimal totalPrice; public CartItem() { // TODO Auto-generated constructor stub } public CartItem(Product product) { super(); this.product = product; this.quantity = 1; this.totalPrice =...