Spring boot随时获取ApplicationContex

@Servicepublic class SpringManager implements ApplicationListener<ContextRefreshedEvent> {    private static ApplicationContext applicationContext = null;    @Override    public void onApplicationEvent(ContextRefreshedEvent event) {        if(applicationContext == null){            applicationContext = event.getApplicationContext();        }    }    /*ApplicationContext context= ContextLoader.getCurrentWebApplicationContext();//尝试下这个方法*/    public static ApplicationContext getApplicationContext() {        return applicationContext;    }}

或者@Servicepublic class SpringTool implements ApplicationContextAware {    private static ApplicationContext context = null;    @Override    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {        context = applicationContext;    }    public static ApplicationContext getApplicationContext() {        return context;    }}

或者直接    @Autowired    ApplicationContext context;