public class MyBeanPostProcessor implements InstantiationAwareBeanPostProcessor, DestructionAwareBeanPostProcessor {
    public static final Logger log = LoggerFactory.getLogger(MyBeanPostProcessor.class);
    @Override
    public void postProcessBeforeDestruction(Object o, String s) throws BeansException {
        if (s.equals("lifeCycleBean"))
            log.info("<<<<<<<<< 销毁之前执行, 例如@PreDestroy");
    }

    @Override
    public Object postProcessBeforeInstantiation(Class<?> beanClass, String beanName) throws BeansException {
        if (beanName.equals("lifeCycleBean"))
            log.info("<<<<<<<<< 实例化之前执行, 这里返回的对象会替换原本的bean");
        return null;
    }

    @Override
    public boolean postProcessAfterInstantiation(Object bean, String beanName) throws BeansException {
        if (beanName.equals("lifeCycleBean"))
            log.info("<<<<<<<<< 实例化之后执行, 这里如果返回false会跳过依赖注入阶段");
        return true;
    }

    @Override
    public PropertyValues postProcessProperties(PropertyValues pvs, Object bean, String beanName) throws BeansException {
        if (beanName.equals("lifeCycleBean"))
            log.info("<<<<<<<<< 依赖注入阶段执行, 例如@Autowired, @Value, @Resource");
        return pvs;
    }

    @Override
    public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
        if (beanName.equals("lifeCycleBean"))
            log.info("<<<<<<<<< 初始化之前执行, 这里返回的对象会替换掉原本的bean, 如@PostConstruct, @ConfigurationProperties");
        return bean;
    }

    @Override
    public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
        if (beanName.equals("lifeCycleBean"))
            log.info("<<<<<<<<< 实例化之后执行, 这里返回的对象会替换掉原本的bean, 如代理增强");
        return bean;
    }
}