creating a new logger in boot code example
Example: professional logging in spring boot
<?xml version="1.0" encoding="UTF-8"?><configuration> <property name="LOGS" value="./logs" /> <appender name="Console" class="ch.qos.logback.core.ConsoleAppender"> <layout class="ch.qos.logback.classic.PatternLayout"> <Pattern> %black(%d{ISO8601}) %highlight(%-5level) [%blue(%t)] %yellow(%C{1.}): %msg%n%throwable </Pattern> </layout> </appender> <appender name="RollingFile" class="ch.qos.logback.core.rolling.RollingFileAppender"> <file>${LOGS}/spring-boot-logger.log</file> <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"> <Pattern>%d %p %C{1.} [%t] %m%n</Pattern> </encoder> <rollingPolicy class="ch.qos.logback.core.rolling.TimeBasedRollingPolicy"> <!-- rollover daily and when the file reaches 10 MegaBytes --> <fileNamePattern>${LOGS}/archived/spring-boot-logger-%d{yyyy-MM-dd}.%i.log </fileNamePattern> <timeBasedFileNamingAndTriggeringPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedFNATP"> <maxFileSize>10MB</maxFileSize> </timeBasedFileNamingAndTriggeringPolicy> </rollingPolicy> </appender> <!-- LOG everything at INFO level --> <root level="info"> <appender-ref ref="RollingFile" /> <appender-ref ref="Console" /> </root> <!-- LOG "com.baeldung*" at TRACE level --> <logger name="com.baeldung" level="trace" additivity="false"> <appender-ref ref="RollingFile" /> <appender-ref ref="Console" /> </logger> </configuration>