// Get the user's session and shopping cart
HttpSession session = request.getSession(true);
ShoppingCart cart =
(ShoppingCart)session.getAttribute("examples.bookstore.cart");
// If the user has no cart, create a new one
if (cart == null) {
cart = new ShoppingCart();
session.setAttribute("examples.bookstore.cart", cart);
}
// set content-type header before accessing the Writer
response.setContentType("text/html");
PrintWriter out = response.getWriter();
// then write the response
out.println("<html>" +
"<head><title>Book Description</title></head>");
// Get the dispatcher; it gets the banner to the user
RequestDispatcher dispatcher =
getServletContext().getRequestDispatcher(
"/banner");
if (dispatcher != null)
dispatcher.include(request, response);
//Get the identifier of the book to display
String bookId = request.getParameter("bookId");
if (bookId != null) {
// and the information about the book
BookDetails bd = bookDB.getBookDetails(bookId);
//Print out the information obtained
out.println("<h2>" + bd.getTitle() + "</h2>" +
" By <em>" + bd.getFirstName() + " " +
bd.getSurname() + "</em> " +
"(" + bd.getYear() + ")<br> <br>" +
"<h4>Here's what the critics say: </h4>" +
"<blockquote>" + bd.getDescription() +
"</blockquote>" +
"<h4>Our price: " + Currency.format(bd.getPrice(), request.getLocale()) + "</h4>" +
"<p><strong><a href=\"" +
response.encodeURL("/bookstore/catalog?Add=" + bookId) +
"\"> Add To Your Shopping Cart</a> " +
"<a href=\"" +
response.encodeURL("/bookstore/catalog") + "\">Continue Shopping</a></p></strong>");
}
out.println("</body></html>");
out.close();
