Forgot password link

protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        String email = request.getParameter("email");
        
        PrintWriter out = response.getWriter();
        boolean isEmailValid=false;
        try {
            Class.forName("com.mysql.jdbc.Driver");
            Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/users", "root", "root");
            PreparedStatement pst = conn.prepareStatement("Select user_email from users where user_email=? ");
            pst.setString(1, email);
          
            ResultSet rs = pst.executeQuery();
            HttpSession session = request.getSession(false);
           
            if (rs.next()) {
                if (rs.getString("user_email").equals(email)) {
                    isEmailValid=true;
                                     }
                            }if(isEmailValid){
                session.setAttribute("Email", email);
                response.sendRedirect("Password.jsp");
            
            }else 
              response.sendRedirect("ErrorPage.jsp");

            

        } catch (ClassNotFoundException | SQLException e) {
            Logger.getLogger(Login.class.getName()).log(Level.SEVERE, null, e);
        }

    }