java-tutorials/spring-cloud-modules/spring-cloud-bootstrap/gateway-2/src/test/resources/logback-test.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <appender name="LISTAPPENDER"
        class="com.baeldung.springcloudgateway.introduction.LoggerListAppender">
    </appender>
    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
        </encoder>
    </appender>
    <root level="info">
        <appender-ref ref="LISTAPPENDER" />
    </root>
    <root level="info">
        <appender-ref ref="STDOUT" />
    </root>
</configuration>