zl11200: 拙见：比如spring aop的实现就是用factorybean的子接口proxyfactorybean创建自定义的代理bean（比如自定义是创建cglib还是jdk动态代理）

三人三木: 先介绍Spring Boot Reference Documentation-官方参考文档的 Externalized Configuration-外部化配置，可以更好地引导用户理解为何这些配置都能生效。 https://docs.spring.io/spring-boot/docs/2.1.8.RELEASE/reference/html/boot-features-external-config.html Spring Boot uses a very particular PropertySource order that is designed to allow sensible overriding of values. Properties are considered in the following order:

^一剪梅^: nohup sh mqbroker -n 192.168.180.133:9876 autoCreateTopicEnable=true 命令行指定 autoCreateTopicEnable=true 没有用把？

weixin_50816361: 牛啊牛啊 但是看不懂

My丶dream: 太谢谢了，这么一弄就很简单