protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
Connection connection = MyConnection.getConnection();
request.setCharacterEncoding("utf-8");
BuyList buyList = new BuyList();
Product product = null;
User user = null;
try {
int buyquantity = Integer.valueOf(request.getParameter("quantity"));
buyList.setUserId(UserLoginServlet.getLoginId(request, response));
buyList.setProductId(Integer.valueOf(request.getParameter("id")));
buyList.setProductNum(Integer.valueOf(request.getParameter("quantity")));
buyList.setState(0);
System.out.println(buyList.getUserId() + "" + buyList.getProductId());
BuyListRepository.getInstance().addBuyList(connection, buyList);
product =
ProductRepository.getInstance()
.FindById(connection, Integer.valueOf(request.getParameter("id")));
product.setQuantity(product.getQuantity() - buyquantity);
ProductRepository.getInstance().modifyProduct(connection, product);
user =
UserRepository.getInstance()
.findById(connection, UserLoginServlet.getLoginId(request, response));
user.setMoney(user.getMoney() - buyquantity * product.getPrice());
UserRepository.getInstance().updateUser(connection, user);
} catch (Exception e) {
e.printStackTrace();
MyConnection.connException(connection);
}
MyConnection.endConnection(connection);
response.sendRedirect("/shop/buyList");
}