converter logback.xml para log4j.properties - java, xml, logging, log4j, logback

Como posso converter esse logback.xml em um log4j.properties equivalente?

<configuration>
<timestamp key="byDay" datePattern="yyyy-MM-dd"/>
<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>

<appender name="FILE" class="ch.qos.logback.core.FileAppender">
<file>logging-${byDay}.log</file>
<append>true</append>
<encoder>
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
</encoder>
</appender>

<root level="info">
<appender-ref ref="FILE" />
<appender-ref ref="STDOUT" />
</root>
</configuration>

Estou mudando meu sistema de log de logback para log4j. Eu já tenho esse arquivo logback.xml para logback. Portanto, precisa de um arquivo log4j.properties equivalente para log4j.

Respostas:

Eu recomendo ler documentos oficiais. Mas no seu caso:

# Root logger option
log4j.rootLogger=INFO, file, stdout

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n%c{1}:%L - %m%n

log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.rollingPolicy=org.apache.log4j.rolling.TimeBasedRollingPolicy
log4j.appender.file.rollingPolicy.FileNamePattern=/logs/logging-%d{yyyy-MM-dd}.log
log4j.appender.file.ImmediateFlush=true
log4j.appender.file.Append=true
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n%c{1}:%L - %m%n