proxyBeanMethods属性默认值是true,也就是说该配置类会被代理（CGLIB），在同一个配置文件中调用其它被@Bean注解标注的方法获取对象时会直接从IOC容器之中获取；
1.看下源码注解
java
/**
* 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. This feature
* requires method interception, implemented through a runtime-generated CGLIB
* subclass which comes with limitations such as the configuration class and
* its methods not being allowed to declare {@code final}.
* <p>The default is {@code true}, allowing for 'inter-bean references' via direct
* method calls within the configuration class as well as for external calls to
* this configuration's {@code @Bean} methods, e.g. from another configuration class.
* If this is not needed since each of this particular configuration's {@code @Bean}
* methods is self-contained and designed as a plain factory method for container use,
* switch this flag to {@code false} in order to avoid CGLIB subclass processing.
* <p>Turning off bean method interception effectively processes {@code @Bean}
* methods individually like when declared on non-{@code @Configuration} classes,
* a.k.a. "@Bean Lite Mode" (see {@link Bean @Bean's javadoc}). It is therefore
* behaviorally equivalent to removing the {@code @Configuration} stereotype.
* @since 5.2
*/
boolean proxyBeanMethods() default true;
1234567891011121314151617181920注解的意思是proxyBeanMethods配置类是用来指定@Bean注解标注的方法是否使用代理，默认是true使用代理，直接从IOC容器之中取得对象；如果设置为false,也就是不使用注解，每次调用@Bean标注的方法获取到的对象和IOC容器中的都不一样，是一个新的对象，所以我们可以将此属性设置为false来提高性能；
GitHub地址：https://github.com/mingyang66/spring-parent/tree/master/doc/base