private void listall(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
BusinessServiceImpl service = new BusinessServiceImpl();
List<Order> list = service.getAllOrders();
request.setAttribute("orders", list);
request.getRequestDispatcher("/admin/listOrder.jsp").forward(request, response);
}
private void delete(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
try {
int orderID = Integer.parseInt(request.getParameter("orderID"));
BusinessServiceImpl service = new BusinessServiceImpl();
Order order = service.findOrder(orderID);
service.deleteOrder(order);
request.setAttribute("message", "Delete order successfully!");
} catch (Exception e) {
e.printStackTrace();
request.setAttribute("message", "Delete order failed!");
}
request.getRequestDispatcher("/message.jsp").forward(request, response);
}
private void add(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
try {
BusinessServiceImpl service = new BusinessServiceImpl();
Book book;
int userID; // = Integer.parseInt(request.getParameter("userId"));
String purchasedBooks = "";
Date date = new Date();
Double amount = 0.00;
HttpSession session = request.getSession(true);
ArrayList<Book> bookList = (ArrayList<Book>) session.getAttribute("bookList");
User authenticatedUser = (User) session.getAttribute("authenticatedUser");
userID = authenticatedUser.getUserID();
if (bookList == null) {
// if shopping cart is empty, cannot place order
request.setAttribute("message", "Shopping cart is empty!");
} else {
// compute purchasedBooks and amount
book = bookList.get(0);
purchasedBooks = Integer.toString(book.getBookID());
amount += book.getPrice();
for (int i = 1; i < bookList.size(); i++) {
book = bookList.get(i);
purchasedBooks = "," + Integer.toString(bookList.get(i).getBookID());
amount += book.getPrice();
}
}
Order order = new Order();
order.setUserID(userID);
order.setDate(date);
order.setAmount(amount);
order.setPurchasedBooks(purchasedBooks);
service.addOrder(order);
request.setAttribute("message", "Place order successfully!");
} catch (Exception e) {
e.printStackTrace();
request.setAttribute("message", "Place order failed!");
}
request.getRequestDispatcher("/message.jsp").forward(request, response);
}
private void register(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
try (PrintWriter out = response.getWriter()) {
String username = request.getParameter("username");
String password = request.getParameter("pwd");
BusinessServiceImpl service = new BusinessServiceImpl();
int userID = service.findUser(username);
if (userID != 0) {
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet register</title>");
out.println("<link rel=\"stylesheet\" href=\"../bootstrap.min.css\">");
out.println("</head>");
out.println("<body align='center'>");
out.println("<h1>Sooooooorry!</h1>");
out.println("<h3>The username has been used. Please re-register another username.</h3>");
out.println(
"<h4>---><a href='/BookMart/client/register.jsp'>Back to Register Page</a><---</h4>");
out.println("<img src='sorry.gif' />");
out.println("</body>");
out.println("</html>");
} else {
if (password.isEmpty()) {
out.println("<script language='javascript'>alert('Please enter a password')</script>");
} else {
User user = new User();
user.setUserName(username);
user.setPassword(password);
service.addUser(user);
userID = service.findUser(username);
String url = "index.jsp?userID=" + userID;
response.sendRedirect(url);
}
}
} catch (Exception e) {
e.printStackTrace();
}
}
private void update(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
try {
int orderID = Integer.parseInt(request.getParameter("orderID"));
Date date = new Date();
Double amount = Double.parseDouble(request.getParameter("amount"));
String purchasedBooks = request.getParameter("purchasedBooks");
Order order = new Order();
order.setDate(date);
order.setAmount(amount);
order.setPurchasedBooks(purchasedBooks);
BusinessServiceImpl service = new BusinessServiceImpl();
service.updateOrder(order);
request.setAttribute("message", "Update order successfully!");
} catch (Exception e) {
e.printStackTrace();
request.setAttribute("message", "Update order failed!");
}
request.getRequestDispatcher("/message.jsp").forward(request, response);
}