springboot解决拦截器无法调用service层问题（无法注入serivce）

拦截器：

if (loginTickerService == null) {//解决service为null无法注入问题
    System.out.println("loginTickerService is null!!!");
    BeanFactory factory = WebApplicationContextUtils.getRequiredWebApplicationContext(request.getServletContext());
    loginTickerService = (LoginTickerService) factory.getBean("loginTickerService");
}
//根据token往数据库里查询token是否存在
LoginTicket chauxntoken=loginTickerService.chaxunByLoginTicket(token);