springboot bootstrap.yml和application.yml

bootstrap.yml在application.yml之前加载，一般在spring cloud使用配置中心时使用；

bootstrap.yml同名属性会被application.yml覆盖；

application.yml在application.properties之前加载，同名属性会被application.properties覆盖

示例

导入jar包，使bootstrap.yml得配置生效

        <dependency>
            <groupId>org.</groupId>
            <artifactId>spring-cloud-context</artifactId>
            <version>2.2.0.RELEASE</version>
        </dependency>

***************

bootstrap.yml

server:
  port: 8081

启动应用，控制台输出

2019-12-20 11:0:50.672  IFO 2080 --- [           main] o.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2019-12-20 11:0:50.676  IFO 2080 --- [           main] o.s.ContextLoader            : Root WebApplicationContext: initialization completed in 170 ms
2019-12-20 11:0:50.96  IFO 2080 --- [           main] o.s.ThreadPoolTaskExecutor  : Initializing ExecutorService 	applicationTaskExecutor	
2019-12-20 11:0:51.289  IFO 2080 --- [           main] o.s.b.TomcatWebServer  : Tomcat started on port(s): 8081 (http) with context path 		
2019-12-20 11:0:51.296  IFO 2080 --- [           main] demo.DemoApplication         : Started DemoApplication in .264 seconds (JVM running for 6.268)

应用监听端口为8081，bootstrap.yml生效

***************

添加application.yml

server:
  port: 8082

启动应用，控制台输出

2019-12-20 11:07:.062  IFO 22148 --- [           main] o.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2019-12-20 11:07:.062  IFO 22148 --- [           main] o.s.ContextLoader            : Root WebApplicationContext: initialization completed in 79 ms
2019-12-20 11:07:.179  IFO 22148 --- [           main] o.s.ThreadPoolTaskExecutor  : Initializing ExecutorService 	applicationTaskExecutor	
2019-12-20 11:07:.74  IFO 22148 --- [           main] o.s.b.TomcatWebServer  : Tomcat started on port(s): 8082 (http) with context path 		
2019-12-20 11:07:.77  IFO 22148 --- [           main] demo.DemoApplication         : Started DemoApplication in 2.011 seconds (JVM running for .696)

应用监听端口为8082，application.yml覆盖bootstrap.yml的端口配置

***************

添加application.properties

server.port=808

启动应用，控制台输出

2019-12-20 11:11:04.004  IFO 608 --- [           main] o.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2019-12-20 11:11:04.004  IFO 608 --- [           main] o.s.ContextLoader            : Root WebApplicationContext: initialization completed in 844 ms
2019-12-20 11:11:04.149  IFO 608 --- [           main] o.s.ThreadPoolTaskExecutor  : Initializing ExecutorService 	applicationTaskExecutor	
2019-12-20 11:11:04.16  IFO 608 --- [           main] o.s.b.TomcatWebServer  : Tomcat started on port(s): 808 (http) with context path 		
2019-12-20 11:11:04.20  IFO 608 --- [           main] demo.DemoApplication         : Started DemoApplication in 2.018 seconds (JVM running for .692)

应用监听端口为808，application.properties覆盖前面的配置信息