log4j output to more than one custom file log4j output to multiple custom files

The powerful function of log4j is unquestionable, but in practical application it is unavoidable to have a function to output independent log files, how to separate the required content from the original log, and form a separate log file. In fact, as long as the existing log4j based on a little configuration can easily achieve this function.

<span style= "FONT-SIZE:24PX;"  
>log4j.rootlogger=info,logfile # Set Log for Dao,service class Log4j.logger.com.dong.dao=error,mydao
log4j.logger.com.dong.service= Error,myservice Log4j.appender.logfile=org.apache.log4j.consoleappender #控制台输出日志 Log4j.appender.logfile.layout=org.apache.log4j.patternlayout log4j.appender.logfile.layout.conversionpattern=%m %n # Service Settings Log4j.appender.myservice=org.apache.log4j.rollingfileappender #按天记录日志 log4j.appender.myService.File =/usr/tmp/logs/service.log log4j.appender.myservice.maxfilesize=50000kb log4j.appender.myservice.maxbackupindex= 1 log4j.appender.myservice.layout=org.apache.log4j.htmllayout log4j.additivity.loopPriceCalendarEntry =false #  
The log for the Com.dong.service class is entered only into the Service.log file Log4j.appender.mydao=org.apache.log4j.rollingfileappender  
Log4j.appender.mydao.file=/usr/tmp/logs/dao.log log4j.appender.mydao.maxfilesize=50000kb Log4j.appender.mydao.maxbackupindex=1 Log4j.appender.mydao.layout=org.apache.log4j.patternlayout 
Log4j.appender.mydao.layout.conversionpattern=%d{yyyy-mm-ddhh:mm:ss}%5p[%t] (%f:%l)-%m%n</span>