引入ServletContextListener@Autowirednull解决办法

public class ScheduleController implements ServletContextListener {&＃64;Autowiredprivate ScheduleService scheduleService;&＃64;Overridepublic void contextDestroyed(ServletContextEvent event) {System.out.println("销毁");}&＃64;Overridepublic void contextInitialized(ServletContextEvent event) { WebApplicationContextUtils.getRequiredWebApplicationContext(event.getServletContext()).getAutowireCapableBeanFactory().autowireBean(this);System.out.println("开始执行周期任务");scheduleService.start(); ;}
}