自学Servlet_9_session(购物车)
先把代码附上：
//显示用户买的所有书（购物车列表显示页面）public class ListCartServlet extends HttpServlet {public void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {response.setContentType("text/html;charset=UTF-8");response.setCharacterEncoding("UTF-8");PrintWriter out = response.getWriter();out.print("您购买了如下商品:<br/>");List<Book> list = (List) request.getSession().getAttribute("list");for(Book book : list){out.print(book.getName() + "<br/>");}}public void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {doGet(request, response);}}?