Log4j:warn No Appenders could is found for logger solution

When we use log4j, we always show:
Java code Log4j:warn No Appenders could is found for logger (org.apache.ibatis.logging.LogFactory). Log4j:warn Initialize the log4j system properly.
This problem is because our Log4j.properties file configuration is not complete enough, so we configured it so that it won't happen again.
The log4j.properties is not fully configured as follows:
Java code log4j.rootlogger=debug, stdout Log4j.appender.stdout=org.apache.log4j.consoleappender log4j.appender.st Dout.layout=org.apache.log4j.patternlayout Log4j.appender.stdout.layout.conversionpattern=%c{1}-%m%n Log4j.log Ger.java.sql.preparedstatement=debug
The complete configuration is as follows:
Java code    log4j.rootlogger=console,file   log4j.addivity.org.apache=true       #  applications for consoles    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 Daily    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      #  apply 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 &nbsp 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 logs 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. But found that the previous LOG4J console information is not, in fact, as long as the above detailed configuration of the log4j.rootlogger=console,file changed to Log4j.rootlogger=debug,console,file, you will find that The console information is back.
Java code log4j.rootlogger=console,file #log4j. Rootlogger=debug,console,file log4j.addivity.org.apache=true