Log4J2 로그 색깔 지정!

참고

• https://stackoverflow.com/questions/21979699/log4j-2-adding-multiple-colors-to-console-appender
• https://logging.apache.org/log4j/2.x/manual/layouts.html

<Console name="SlowConsole" target="SYSTEM_OUT">
     <PatternLayout disableAnsi="false"  pattern="%highlight{%d{HH:mm:ss.SSS} %-5level %logger{36}.%M() @%L - %msg%n}{FATAL=red blink, ERROR=red, WARN=yellow bold, INFO=black, DEBUG=green bold, TRACE=blue}"/>
</Console>

For a log4j2 colored output that looks very close to Spring Boot's default logback console output:

<Console name="ConsoleAppender" target="SYSTEM_OUT" follow="true">
    <PatternLayout pattern="%d{${LOG_DATEFORMAT_PATTERN:-yyyy-MM-dd HH:mm:ss.SSS}} %highlight{${LOG_LEVEL_PATTERN:-%5p}}{FATAL=red blink, ERROR=red, WARN=yellow bold, INFO=green, DEBUG=green bold, TRACE=blue} %style{${sys:PID}}{magenta} [%15.15t] %style{%-40.40C{1.}}{cyan} : %m%n${LOG_EXCEPTION_CONVERSION_WORD:-%wEx}"/>
</Console>