I have the following code snippet in a parent root pom
set dev as the default profile

    <profiles>
        <profile>
            <id>dev</id>
            <properties>
                <profileActive>dev</profileActive>
            </properties>
            <activation>
                <activeByDefault>true</activeByDefault>
            </activation>
        </profile>
        <profile>
            <id>test</id>
            <properties>
                <profileActive>test</profileActive>
            </properties>
        </profile>
        <profile>
            <id>prod</id>
            <properties>
                <profileActive>prod</profileActive>
            </properties>
        </profile>
    </profiles>

    <build>
        <resources>
            <resource>
                <directory>src/main/resources</directory>
                <filtering>true</filtering>
                <excludes>
                    <exclude>application-dev.yml</exclude>
                    <exclude>application-test.yml</exclude>
                    <exclude>application-prod.yml</exclude>
                </excludes>
            </resource>

            <resource>
                <directory>src/main/resources</directory>
                <filtering>true</filtering>
                <includes>
                    <include>application-${profileActive}.yml</include>
                </includes>
            </resource>
        </resources>

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

            <plugin>
                <artifactId>maven-resources-plugin</artifactId>
                <version>3.0.2</version>
                <configuration>
                    <delimiters>
                        <delimiter>@</delimiter>
                    </delimiters>
                    <useDefaultDelimiters>false</useDefaultDelimiters>
                </configuration>
            </plugin>
        </plugins>
    </build>

then a springboot project references that the pom is parent
there is an application.yml application-dev.yml application-test.yml
under the resource of this project, and the following is in the application.yml:

spring:
  profiles:
    active: @profileActive@

if I package and transfer this project to the linux server to run, I correctly adopt the default profile of dev, and the log is

2019-01-18 00 INFO

but if I click to debug and run
under IDEA (the red warning in the picture is for privacy, I don"t want to disclose the specific project and class name, it"s scribbled, it"s just showing the configuration here)

No configuration
then there will be

2019-01-17 1633 c.u.i.k.p.myproject.MyApplication INFO 12044-[main] c.u.i.k.p.myproject.MyApplication: No active profile set, falling back to default profiles: default