SpringBoot进阶教程 | 第一篇：YML多文档块实现多环境配置

你是否为SpringBoot一个功能多个yml和多个properties文件区分不同运行环境配置，经常为这些配置文件的管理而头疼，现在通过这篇文章，将彻底解决你的烦恼，这篇文篇介绍，怎么通过yml文件构建多文档块，区分不同环境配置，自由切换不同环境启动项目，一个配置文件搞定。

准备工作

环境：

windows
jdk 8
maven 3.0
IDEA

构建工程

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>cn.zhangbox</groupId>
        <artifactId>spring-boot-study</artifactId>
        <version>1.0-SNAPSHOT</version>
    </parent>

    <groupId>cn.zhangbox</groupId>
    <artifactId>spring-boot-02-config</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <packaging>jar</packaging>

    <name>spring-boot-02-config</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <!--导入配置文件处理器，配置文件进行绑定就会有提示-->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

修改YML配置

#选择哪一个环境的配置
#这里可以在每个环境配置redis，数据库（mysql），消息（kafka）等相关的组件的配置
spring:
  profiles:
    active: prod

#文档块区分为三个---
---
server:
  port: 8081
spring:
  profiles: test

#文档块区分为三个---
---
server:
  port: 8082
spring:
  profiles: test

#文档块区分为三个---
---
server:
  port: 8083
spring:
  profiles: prod

创建启动类

@SpringBootApplication
public class SpringBootConfigApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringBootConfigApplication.class, args);
    }
}

控制台打印

 .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v1.5.9.RELEASE)

2018-07-04 15:07:26.214  INFO 14812 --- [           main] c.z.s.SpringBootConfigApplication        : Starting SpringBootConfigApplication on MS-20180428GSYE with PID 14812 (C:\Users\Administrator\Desktop\spring-boot-02-config\target\classes started by Administrator in C:\Users\Administrator\Desktop\spring-boot-02-config)
2018-07-04 15:07:26.219  INFO 14812 --- [           main] c.z.s.SpringBootConfigApplication        : The following profiles are active: prod
2018-07-04 15:07:26.281  INFO 14812 --- [           main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@3f57bcad: startup date [Wed Jul 04 15:07:26 GMT+08:00 2018]; root of context hierarchy
2018-07-04 15:07:28.988  INFO 14812 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 8083 (http)
2018-07-04 15:07:29.029  INFO 14812 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2018-07-04 15:07:29.031  INFO 14812 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet Engine: Apache Tomcat/8.5.23
2018-07-04 15:07:29.184  INFO 14812 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2018-07-04 15:07:29.184  INFO 14812 --- [ost-startStop-1] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 2909 ms
2018-07-04 15:07:29.419  INFO 14812 --- [ost-startStop-1] o.s.b.w.servlet.ServletRegistrationBean  : Mapping servlet: 'dispatcherServlet' to [/]
2018-07-04 15:07:29.424  INFO 14812 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'characterEncodingFilter' to: [/*]
2018-07-04 15:07:29.424  INFO 14812 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2018-07-04 15:07:29.424  INFO 14812 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2018-07-04 15:07:29.424  INFO 14812 --- [ost-startStop-1] o.s.b.w.servlet.FilterRegistrationBean   : Mapping filter: 'requestContextFilter' to: [/*]
2018-07-04 15:07:30.605  INFO 14812 --- [           main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@3f57bcad: startup date [Wed Jul 04 15:07:26 GMT+08:00 2018]; root of context hierarchy
2018-07-04 15:07:30.731  INFO 14812 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2018-07-04 15:07:30.732  INFO 14812 --- [           main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2018-07-04 15:07:30.777  INFO 14812 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-07-04 15:07:30.777  INFO 14812 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-07-04 15:07:30.833  INFO 14812 --- [           main] o.s.w.s.handler.SimpleUrlHandlerMapping  : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2018-07-04 15:07:31.166  INFO 14812 --- [           main] o.s.j.e.a.AnnotationMBeanExporter        : Registering beans for JMX exposure on startup
2018-07-04 15:07:31.470  INFO 14812 --- [           main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 8083 (http)
2018-07-04 15:07:31.475  INFO 14812 --- [           main] c.z.s.SpringBootConfigApplication        : Started SpringBootConfigApplication in 5.897 seconds (JVM running for 7.324)