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Editorial Team
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Asked: 2026-05-27T13:22:29+00:00

I am creating a solution for my application log, which have various types of

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I am creating a solution for my application log, which have various types of logging (user, application, etc…), wanted to save each type of log in a separate file.

This is possible with log4j or some other API?
How could I do that?

If you deem interesting, I edit the question and put the codes, but I do not think it’s worth, they are still very basic.

Thanks in advance.

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1 Answer

  1. Editorial Team

    Of cource, use different FileAppenders
    Example from internet:

    log4j.rootLogger=DEBUG

# AdminFileAppender - used to log messages in the admin.log file.
log4j.appender.AdminFileAppender=org.apache.log4j.FileAppender

log4j.appender.AdminFileAppender.File=admin.log

log4j.appender.AdminFileAppender.layout=org.apache.log4j.PatternLayout
log4j.appender.AdminFileAppender.layout.ConversionPattern= %-4r [%t] %-5p %c %x - %m%n

# ReportFileAppender - used to log messages in the report.log file.
log4j.appender.ReportFileAppender=org.apache.log4j.FileAppender

log4j.appender.ReportFileAppender.File=report.log

log4j.appender.ReportFileAppender.layout=org.apache.log4j.PatternLayout
log4j.appender.ReportFileAppender.layout.ConversionPattern= %-4r [%t] %-5p %c %x - %m%n

log4j.logger.com.vaannila.admin=WARN,AdminFileAppender 
log4j.logger.com.vaannila.report=DEBUG,ReportFileAppender

    Now you can log to admin.log Logger.getLogger("com.vaannila.admin").log("To admin log") and to report log Logger.getLogger("com.vaannila.report").log("To report log")

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