~~~ # log4j.rootLogger=WARN, stdout, file log4j.rootLogger=WARN, stdout, file log4j.appender.stdout=org.apache.log4j.ConsoleAppender log4j.appender.stdout.layout=org.apache.log4j.PatternLayout log4j.appender.stdout.layout.ConversionPattern=%n%-d{yyyy-MM-dd HH:mm:ss}%n[%p]-[Thread: %t]-[%C.%M()]: %m%n # Output to the File log4j.appender.file=org.apache.log4j.DailyRollingFileAppender log4j.appender.file.DatePattern='_'yyyy-MM-dd'.log' log4j.appender.file.File=./log/jfinal_demo_for_maven.log log4j.appender.file.layout=org.apache.log4j.PatternLayout log4j.appender.file.layout.ConversionPattern=%n%-d{yyyy-MM-dd HH:mm:ss}%n[%p]-[Thread: %t]-[%C.%M()]: %m%n ~~~