springboot 多环境配置 yml文件版的实现方法

<!-- 多环境配置方案 -->
  <profiles>
    <profile>
      <!-- 本地开发环境 -->
      <id>dev</id>
      <properties>
        <profileActive>dev</profileActive>
      </properties>
      <!-- 默认开启这个配置 -->
      <activation>
        <activeByDefault>true</activeByDefault>
      </activation>
    </profile>
    <profile>
      <id>sit</id>
      <properties>
        <profileActive>sit</profileActive>
      </properties>
    </profile>
    <profile>
      <id>uat</id>
      <properties>
        <profileActive>uat</profileActive>
      </properties>
    </profile>
    <profile>
      <id>prod</id>
      <properties>
        <profileActive>prod</profileActive>
      </properties>
    </profile>
  </profiles>

<resources>
      <resource>
        <!--开启过滤，用指定的参数替换directory下的文件中的参数-->
        <directory>src/main/resources</directory>
        <filtering>true</filtering>
      </resource>
    </resources>

<plugin>
      <groupId>org.apache.maven.plugins</groupId>
      <artifactId>maven-resources-plugin</artifactId>
      <configuration>
        <delimiters>@</delimiters>
        <useDefaultDelimiters>false</useDefaultDelimiters>
      </configuration>
    </plugin>

profiles:
  active: @profileActive@

<dependency>
	      <groupId>org.yaml</groupId>
	      <artifactId>snakeyaml</artifactId>
	</dependency>

/**
 - @author yanglei
 - @desc
 - @date 2020/6/28
 */
@RestController
public class DemoController {

  @Value("${envname}")
  private String envName;

  @GetMapping
  @RequestMapping("/getEnv")
  public String getEnv(){
    return "当前环境是："+envName;
  }
}