spring初始化相关

获取applicationContext

implements ApplicationContextAware

@Override
public void setApplicationContext(ApplicationContext applicationContext)
throws BeansException {
this.applicationContext = applicationContext;
}

开启和销毁

implements  InitializingBean, DisposableBean

@Override
public void afterPropertiesSet() throws Exception {
    System.out.println("启动了");
}

@Override
public void destroy() throws Exception {
    System.out.println("销毁了");
}