How to create multiple log files using log4j

问题

I want to create separate log file one for info another for debug, I am using below log4j.property file, Please suggest how to modify for two level logging in different file,

# Root logger option
log4j.rootLogger=info, file

# Direct log messages to a log file
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.File=infoLog.log
log4j.appender.file.MaxFileSize=10MB
log4j.appender.file.MaxBackupIndex=10
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1} - %m%n


log4j.rootCategory=DEBUG, console     
log4j.appender.console=org.apache.log4j.ConsoleAppender
log4j.appender.console.layout=org.apache.log4j.PatternLayout
log4j.appender.console.layout.ConversionPattern=%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1} - %m%n
log4j.appender.console.Target=System.out

I would like to request Please send me updated property file rather than giving pointer for search or explore, because I have already spent 3-4 Hours on searching this solution in Google and StackOverflow,

Thanks in advance.

回答1:

I hope this will help

log4j.rootLogger=INFO,Appender2

log4j.logger.infoMessagesLogger=INFO, infoMessagesAppender
log4j.additivity.infoMessagesLogger=false

log4j.logger.debugMessagesAppender=DEBUG, debugAppenderAll
log4j.additivity.debugMessagesAppender=false

log4j.appender.Appender2=org.apache.log4j.RollingFileAppender
log4j.appender.Appender2.File=generic.log
log4j.appender.Appender2.MaxFileSize=20MB
log4j.appender.Appender2.MaxBackupIndex=10
log4j.appender.Appender2.layout=org.apache.log4j.PatternLayout
log4j.appender.Appender2.layout.ConversionPattern=%d{dd MMM yyyy HH:mm:ss } %-5p %c %x -%m%n


log4j.appender.infoMessagesAppender=org.apache.log4j.RollingFileAppender
log4j.appender.infoMessagesAppender.File=info.log
log4j.appender.infoMessagesAppender.MaxFileSize=20MB
log4j.appender.infoMessagesAppender.MaxBackupIndex=10
log4j.appender.infoMessagesAppender.layout=org.apache.log4j.PatternLayout
log4j.appender.infoMessagesAppender.layout.ConversionPattern=%d{dd MMM yyyy HH:mm:ss } %-5p %c %x -%m%n

log4j.appender.debugAppenderAll=org.apache.log4j.RollingFileAppender
log4j.appender.debugAppenderAll.File=debug.log
log4j.appender.debugAppenderAll.MaxFileSize=20MB
log4j.appender.debugAppenderAll.MaxBackupIndex=10
log4j.appender.debugAppenderAll.layout=org.apache.log4j.PatternLayout
log4j.appender.debugAppenderAll.layout.ConversionPattern=%d{dd MMM yyyy HH:mm:ss } %-5p %c %x -%m%n

来源：https://stackoverflow.com/questions/27941144/how-to-create-multiple-log-files-using-log4j

标签

java

logging

log4j