java - Sending particular INFO log line to a different file -


i have particular log line information, needs logged in different file future use. have configured log4j.properties in system log necessary information.

eg:-

[2017-07-28 20:33:07,798] info - 'john@doe.com' logged in @ [2017-07-28 20:33:07,798+0530]

i have filter out , append org.apache.log4j.dailyrollingfileappender

appreciate help.

below solution xml configuration. can find the details here. example can specify 2 appenders: 1 storing lines , 1 storing special lines. then, appender storing special lines set filter in following way (example rollingfileappender):

<rollingfile name="rollingfile" filename="logs/app.log"              filepattern="logs/app-%d{mm-dd-yyyy}.log.gz">   <regexfilter regex=".*logged in at.*" onmatch="accept" onmismatch="deny"/>   <patternlayout>     <pattern>%d %p %c{1.} [%t] %m%n</pattern>   </patternlayout>   <timebasedtriggeringpolicy /> </rollingfile>

also check question can find clue on how configure same using properties.


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