pom.xml

<?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>
    <groupId>de.springbootbuch</groupId>
    <artifactId>logging_with_log4j</artifactId>
    <version>0.0.1-SNAPSHOT</version>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.4.0</version>
        <relativePath/>
    </parent>

    <build>
        <finalName>${project.artifactId}</finalName>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

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

    <profiles>
        <profile>
            <id>log4j2</id>
            <activation>
                <activeByDefault>true</activeByDefault>
            </activation>
            <dependencies>
              <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter</artifactId>
                <exclusions>
                  <exclusion>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>
                      spring-boot-starter-logging
                    </artifactId>
                  </exclusion>
                </exclusions>
              </dependency>
              <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>
                  spring-boot-starter-log4j2
                </artifactId>
              </dependency>
            </dependencies>
        </profile>
    </profiles>
</project>