###log level
log4j.rootLogger=info,stdout,file
###log out pattern
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{yyyy-MM-dd HH:mm:ss} %5p %t %c{1} - %m%n
###log file pattern
log4j.appender.file=org.apache.log4j.DailyRollingFileAppender
log4j.appender.file.file=${catalina.base}/logs/server.log
log4j.appender.file.Append = true
log4j.appender.file.Threshold = info
log4j.appender.file.DatePattern='-'yyyy-MM-dd
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%-d{yyyy-MM-dd HH\:mm\:ss} %5p %t %c{1} - %m%n
直接将上面代码粘贴到log4j.properties 保存即可