public class  implements BeanFactoryPostProcessor {
    @Override
    public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
        System.out.println("MyBeanFactoryPostProcessor开始执行");
        String[] beanDefinitionNames = beanFactory.getBeanDefinitionNames();
        for (String name : beanDefinitionNames) {
            if (name.equals("user")){
                BeanDefinition beanDefinition = beanFactory.getBeanDefinition(name);
                MutablePropertyValues propertyValues = beanDefinition.getPropertyValues();
                propertyValues.add("name","Jack");
            }
        }
    }
}