Here's log4j properties using xml to output 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.RollingFileAppender"> <param name="append" value="true" /> <param name="file" value="C:/mylogs/myLogFile.log" /> <layout class="org.apache.log4j.PatternLayout"> <param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss} %-5p %c{1}:%L - %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 inside 'C:/mylogs/' directory.