Springboot读取配置文件及自定义配置文件的方法

<parent>  <groupId>org.springframework.boot</groupId>  <artifactId>spring-boot-starter-parent</artifactId>  <version>1.5.9.RELEASE</version>  </parent> <dependencies>  <dependency>    <groupId>org.springframework.boot</groupId>    <artifactId>spring-boot-starter-web</artifactId>  </dependency>  <!-- 单元测试使用 -->  <dependency>    <groupId>org.springframework.boot</groupId>    <artifactId>spring-boot-starter-test</artifactId>  </dependency>  <dependency>   <groupId>junit</groupId>   <artifactId>junit</artifactId>   <scope>test</scope>  </dependency> </dependencies>