@Component
public class MyBeanPostProcessor implements BeanPostProcessor{
//在每个bean初始化后，初始化方法执行后，都执行
的方法
@Override
public Object postProcessAfterInitialization(Object bean, String beanName) throws BeansException {
System.out.println("postProcessAfterInitialization=="+beanName);
return BeanPostProcessor.super.postProcessAfterInitialization(bean, beanName);
}
//在每个bean初始化后，在初始化方法执行前，都执行的方法
@Override
public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
System.out.println("postProcessBeforeInitialization=="+beanName);
return BeanPostProcessor.super.postProcessBeforeInitialization(bean, beanName);
}
}