Daily Rolling Log Files Using log4j.xml

Here's log4j properties using xml to output daily log messages to a file.

log4j.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">

<log4j:configuration debug="true"
  xmlns:log4j='http://jakarta.apache.org/log4j/'>

<appender name="file" class="org.apache.log4j.DailyRollingFileAppender">
  <param name="File" value="C:/mylogs/myApp.log" />
  <param name="DatePattern" value="'_'yyyy-MM-dd" />
  <layout class="org.apache.log4j.PatternLayout">
     <param name="ConversionPattern" value="[%p] %d %c %M - %m%n"/>          
  </layout>
</appender>
 
<root>
  <level value="DEBUG" />
  <appender-ref ref="file" />
</root>
 
</log4j:configuration>

From the above configuration the log messages will be written to a file daily inside 'C:/mylogs/' directory as shown below:

Daily Rolling Log Files

• Java EE
• Log4j