@configuration(proxyBeanMethods = false)
Specify whether {@code @Bean} methods should get proxied in order to enforce
bean lifecycle behavior, e.g. to return shared singleton bean instances even
in case of direct {@code @Bean} method calls in user code.
表明inter-bean references和extenernal calls是否能通过调用@Bean修饰的方法来获取到bean
如果不想通过调用方法来获取bean, 就可以设置proxyBeanMethods = false 效果就像
spring中factory-method 一样生成bean