在使用springboot的时候可以使用属性文件配置对属性值进行动态配置，官方文档原文如下：
Spring Boot uses a very particular PropertySource order
that is designed to allow sensible overriding of values, properties are considered in the the following order:
System.getProperties()).@PropertySource annotations
on your @Configuration classes.application.properties including
YAML and profile variants).application.properties including
YAML and profile variants).SpringApplication.setDefaultProperties).PropertySource 初识spring boot maven管理--属性文件配置,布布扣,bubuko.com
原文：http://blog.csdn.net/cml_blog/article/details/23736929