package javax.servlet.http does not exist - Intellij

Nessa parte do código da uns erros, acredito ser de importação, mas não consegui resolver.

package br.com.caelum.contas.interceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.servlet.handler.HandlerInterceptorAdapter;

public class AutorizadorInterceptor extends HandlerInterceptorAdapter {

    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object controller)
    throws Exception {

        String uri = request.getRequestURI();
        if(uri.endsWith("loginForm") || uri.endsWith("efetuaLogin") || uri.contains("resources")) {
            return true;
        }

        if(request.getSession().getAttribute("usuarioLogado")!=null) {
            return true;
        } else {
            response.sendRedirect("loginForm");
            return false;
        }

    }
}

Error:(3, 26) java: package javax.servlet.http does not exist
Error:(4, 26) java: package javax.servlet.http does not exist
Error:(10, 34) java: cannot find symbol
  symbol:   class HttpServletRequest
  location: class br.com.caelum.contas.interceptor.AutorizadorInterceptor
Error:(10, 62) java: cannot find symbol
  symbol:   class HttpServletResponse
  location: class br.com.caelum.contas.interceptor.AutorizadorInterceptor