Clear old logs

[Anjali S Sharma]

I am doing the following in log4j.properties

log4j.rootLogger=DEBUG, A
log4j.logger.com.datacorrection.updateWkfHistory=DEBUG
log4j.appender.A=org.apache.log4j.FileAppender
log4j.appender.A.File=c:\\TEMP\\a.log
log4j.appender.A.layout=org.apache.log4j.PatternLayout
log4j.appender.A.layout.ConversionPattern=%d{MM-dd@HH:mm:ss} %-5p (%13F:%L) %3x - %m%n

When I execute my Java program for the first time the logs are added to a.log. But when I execute the program again, the logs are appended to the existing logs only. This makes the log file very big and difficult to understand. Is it possible to create a new log file everytime code is executed.

Secondly, Can I print the same logs to console as well which are being written to log file.

Thank you

[Paul Clapham]

I would suggest using one of the other appenders, like DailyFileAppender or RollingFileAppender... I'm not looking at the API documentation as I guess these names, so I may have them wrong, but you should look there.

And yes, there's a ConsoleAppender too.

And since this post appears to be about log4j I will move it to the appropriate forum.

[Jaikiran Pai]

In addition to what Paul mentioned, look at the "append" property of these appenders. You can set it to false, if you want to recreate the log files every time you run your program.