Log4j.properties file Configuration

Log4j.properties is not fully configured as follows:
Log4j.rootlogger=debug, stdout

Log4j.appender.stdout=org.apache.log4j.consoleappender
Log4j.appender.stdout.layout=org.apache.log4j.patternlayout
Log4j.appender.stdout.layout.conversionpattern=%c{1}-%m%n

Log4j.logger.java.sql.preparedstatement=debug

Log4j.rootlogger=debug, stdout

Log4j.appender.stdout=org.apache.log4j.consoleappender
Log4j.appender.stdout.layout=org.apache.log4j.patternlayout
Log4j.appender.stdout.layout.conversionpattern=%c{1}-%m%n

Log4j.logger.java.sql.preparedstatement=debug

The full configuration is as follows:
Log4j.rootlogger=debug,console,file
Log4j.addivity.org.apache=true

# Apply to Console
Log4j.appender.console=org.apache.log4j.consoleappender
Log4j.appender.console.threshold=info
Log4j.appender.console.target=system.out
Log4j.appender.console.encoding=gbk
Log4j.appender.console.layout=org.apache.log4j.patternlayout
Log4j.appender.console.layout.conversionpattern=[framework]%d-%c-%-4r [%t]%-5p%c%x-%m%n

# New log every day
Log4j.appender.a1=org.apache.log4j.dailyrollingfileappender
Log4j.appender.a1.file=c:/log4j/log
Log4j.appender.a1.encoding=gbk
Log4j.appender.a1.threshold=debug
Log4j.appender.a1.datepattern= '. ' Yyyy-mm-dd
Log4j.appender.a1.layout=org.apache.log4j.patternlayout
Log4j.appender.a1.layout.conversionpattern=%d{absolute}%5p%c{1}:%l:%m%n

#应用于文件
Log4j.appender.file=org.apache.log4j.fileappender
Log4j.appender.file.file=c:/log4j/file.log
Log4j.appender.file.append=false
Log4j.appender.file.encoding=gbk
Log4j.appender.file.layout=org.apache.log4j.patternlayout
Log4j.appender.file.layout.conversionpattern=[framework]%d-%c-%-4r [%t]%-5p%c%x-%m%n

# Applies to file rollback
Log4j.appender.rolling_file=org.apache.log4j.rollingfileappender
Log4j.appender.ROLLING_FILE. Threshold=error
Log4j.appender.ROLLING_FILE. File=rolling.log
Log4j.appender.ROLLING_FILE. Append=true
Log4j.appender.CONSOLE_FILE. Encoding=gbk
Log4j.appender.ROLLING_FILE. maxfilesize=10kb
Log4j.appender.ROLLING_FILE. Maxbackupindex=1
Log4j.appender.rolling_file.layout=org.apache.log4j.patternlayout
Log4j.appender.rolling_file.layout.conversionpattern=[framework]%d-%c-%-4r [%t]%-5p%c%x-%m%n

#自定义Appender
log4j.appender.im = Net.cybercorlin.util.logger.appender.IMAppender
Log4j.appender.im.host = Mail.cybercorlin.net
Log4j.appender.im.username = Username
Log4j.appender.im.password = password
Log4j.appender.im.recipient = yyflyons@163.com
Log4j.appender.im.layout=org.apache.log4j.patternlayout
Log4j.appender.im.layout.ConversionPattern =[framework]%d-%c-%-4r [%t]%-5p%c%x-%m%n

#应用于socket
Log4j.appender.socket=org.apache.log4j.rollingfileappender
Log4j.appender.socket.remotehost=localhost
log4j.appender.socket.port=5001
Log4j.appender.socket.locationinfo=true
# Set up for Log Facter 5
Log4j.appender.socket.layout=org.apache.log4j.patternlayout
log4j.appender.socet.layout.conversionpattern=[start]%d{date}[date]%n%p[priority]%n%x[ndc]%n%t[thread]%n%c[ category]%n%m[message]%n%n
# Log Factor 5 Appender
Log4j.appender.lf5_appender=org.apache.log4j.lf5.lf5appender
Log4j.appender.LF5_APPENDER. maxnumberofrecords=2000

# Send log to Mail
Log4j.appender.mail=org.apache.log4j.net.smtpappender
Log4j.appender.mail.threshold=fatal
log4j.appender.mail.buffersize=10
Log4j.appender.mail.from=yyflyons@163.com
Log4j.appender.mail.smtphost=www.wusetu.com
LOG4J.APPENDER.MAIL.SUBJECT=LOG4J message
Log4j.appender.mail.to=yyflyons@126.com
Log4j.appender.mail.layout=org.apache.log4j.patternlayout
Log4j.appender.mail.layout.conversionpattern=[framework]%d-%c-%-4r [%t]%-5p%c%x-%m%n

Log4j.rootlogger=debug,console,file
Log4j.addivity.org.apache=true

# Apply to Console
Log4j.appender.console=org.apache.log4j.consoleappender
Log4j.appender.console.threshold=info
Log4j.appender.console.target=system.out
Log4j.appender.console.encoding=gbk
Log4j.appender.console.layout=org.apache.log4j.patternlayout
Log4j.appender.console.layout.conversionpattern=[framework]%d-%c-%-4r [%t]%-5p%c%x-%m%n

# New log every day
Log4j.appender.a1=org.apache.log4j.dailyrollingfileappender
Log4j.appender.a1.file=c:/log4j/log
Log4j.appender.a1.encoding=gbk
Log4j.appender.a1.threshold=debug
Log4j.appender.a1.datepattern= '. ' Yyyy-mm-dd
Log4j.appender.a1.layout=org.apache.log4j.patternlayout
Log4j.appender.a1.layout.conversionpattern=%d{absolute}%5p%c{1}:%l:%m%n

#应用于文件
Log4j.appender.file=org.apache.log4j.fileappender
Log4j.appender.file.file=c:/log4j/file.log
Log4j.appender.file.append=false
Log4j.appender.file.encoding=gbk
Log4j.appender.file.layout=org.apache.log4j.patternlayout
Log4j.appender.file.layout.conversionpattern=[framework]%d-%c-%-4r [%t]%-5p%c%x-%m%n

# Applies to file rollback
Log4j.appender.rolling_file=org.apache.log4j.rollingfileappender
Log4j.appender.ROLLING_FILE. Threshold=error
Log4j.appender.ROLLING_FILE. File=rolling.log
Log4j.appender.ROLLING_FILE. Append=true
Log4j.appender.CONSOLE_FILE. Encoding=gbk
Log4j.appender.ROLLING_FILE. maxfilesize=10kb
Log4j.appender.ROLLING_FILE. Maxbackupindex=1
Log4j.appender.rolling_file.layout=org.apache.log4j.patternlayout
Log4j.appender.rolling_file.layout.conversionpattern=[framework]%d-%c-%-4r [%t]%-5p%c%x-%m%n

#自定义Appender
log4j.appender.im = Net.cybercorlin.util.logger.appender.IMAppender
Log4j.appender.im.host = Mail.cybercorlin.net
Log4j.appender.im.username = Username
Log4j.appender.im.password = password
Log4j.appender.im.recipient = yyflyons@163.com
Log4j.appender.im.layout=org.apache.log4j.patternlayout
Log4j.appender.im.layout.ConversionPattern =[framework]%d-%c-%-4r [%t]%-5p%c%x-%m%n

#应用于socket
Log4j.appender.socket=org.apache.log4j.rollingfileappender
Log4j.appender.socket.remotehost=localhost
log4j.appender.socket.port=5001
Log4j.appender.socket.locationinfo=true
# Set up for Log Facter 5
Log4j.appender.socket.layout=org.apache.log4j.patternlayout
log4j.appender.socet.layout.conversionpattern=[start]%d{date}[date]%n%p[priority]%n%x[ndc]%n%t[thread]%n%c[ category]%n%m[message]%n%n
# Log Factor 5 Appender
Log4j.appender.lf5_appender=org.apache.log4j.lf5.lf5appender
Log4j.appender.LF5_APPENDER. maxnumberofrecords=2000

# Send log to Mail
Log4j.appender.mail=org.apache.log4j.net.smtpappender
Log4j.appender.mail.threshold=fatal
log4j.appender.mail.buffersize=10
Log4j.appender.mail.from=yyflyons@163.com
Log4j.appender.mail.smtphost=www.wusetu.com
LOG4J.APPENDER.MAIL.SUBJECT=LOG4J message
Log4j.appender.mail.to=yyflyons@126.com
Log4j.appender.mail.layout=org.apache.log4j.patternlayout
Log4j.appender.mail.layout.conversionpattern=[framework]%d-%c-%-4r [%t]%-5p%c%x-%m%n


Run your program again, and you'll notice that log4j's warning disappears. However, found that the previous LOG4J console information is not, in fact, as long as the above detailed configuration of the log4j.appender.console.threshold=info changed to log4j.appender.console.threshold= DEBUG, you'll find that the console information is back again.

# applies to console    
log4j.appender.console=org.apache.log4j.consoleappender   
log4j.appender.console.threshold=info   
# log4j.appender.console.threshold=debug   
log4j.appender.console.target=system.out   
log4j.appender.console.encoding=gbk   
log4j.appender.console.layout=org.apache.log4j.patternlayout   
Log4j.appender.console.layout.conversionpattern=[framework]%d-%c-%-4r [%t]%-5p%c%x-%m%n