Моя проблема в том, что я хочу сохранить несколько значений в сеансе и получить их, но мой приведенный ниже код не работает, он показывает пустой вывод
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
@WebServlet(urlPatterns = {"/ShoppingCart24"})
public class ShoppingCart24 extends HttpServlet {
protected void processRequest(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
try (PrintWriter out = response.getWriter()) {
out.println("<!DOCTYPE html>");
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet ShoppingCartServlet_24</title>");
out.println("</head>");
out.println("<body>");
//out.println("<h1>Servlet ShoppingCartServlet_24 at " +
request.getContextPath() + "</h1>");
String[] products = request.getParameterValues("product");
HttpSession session = request.getSession(true);
for (int i = 0; i < products.length; i++) {
session.setAttribute("products"+"["+i+"]", "hey");
session.setAttribute("products"+"["+i+"]", "hoi");
session.setAttribute("products"+"["+i+"]", "uil");
}
out.println(session);
for (int i = 0; i < products.length; i++) {
HttpSession session1 = request.getSession(false);
out.println(session1.getAttribute("products"+"["+i+"]"));
}
// for (int i = 1; i <= products.length; i++) {
// session.setAttribute("Bag", 10*i);
// String str = (String)session.getAttribute("Bag");
// out.println(str);
// }
//response.sendRedirect("ShoppingCartServletBill_24");
//out.println(str);
out.println("</body>");
out.println("</html>");
}
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse
response)
throws ServletException, IOException {
processRequest(request, response);
}
/**
* Handles the HTTP <code>POST</code> method.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse
response)
throws ServletException, IOException {
processRequest(request, response);
}
/**
* Returns a short description of the servlet.
*
* @return a String containing servlet description
*/
@Override
public String getServletInfo() {
return "Short description";
}// </editor-fold>
}
Где я не прав ?? Любая помощь будет оценена