小编Mar*_*ada的帖子

I am newbie to ajax here and I know somebody would have encountered this problem already. I have a legacy app built on Spring MVC, it has a interceptor(filter) that redirects the user to the login page whenever there is no session.

public class SessionCheckerInterceptor extends HandlerInterceptorAdapter {
 public boolean preHandle(HttpServletRequest request,
   HttpServletResponse response, Object handler) throws Exception {
  HttpSession session = request.getSession();

  // check if userInfo exist in session
  User user = (User) session.getAttribute("user");
  if (user == null) { …