My log4j.xml
configuration was like ,
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd" >
<log4j:configuration>
<appender name="fileAppender1" class="org.apache.log4j.RollingFileAppender">
<param name="Threshold" value="ALL" />
<param name="MaxFileSize" value="3KB" />
<param name="MaxBackupIndex" value="10" />
<param name="File" value="F:/logs/Testing/Project_moduleOne.log" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d{MMM-dd-yyyy HH:mm:ss:SSS} %-5p %m%n" />
</layout>
</appender>
<appender name="fileAppender2" class="org.apache.log4j.RollingFileAppender">
<param name="Threshold" value="ALL" />
<param name="MaxFileSize" value="3KB" />
<param name="MaxBackupIndex" value="10" />
<param name="File" value="F:/logs/PAD_Testing/Project_moduleTwo.log" />
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d{MMM-dd-yyyy HH:mm:ss:SSS} %-5p %m%n" />
</layout>
</appender>
<!--sets the priority log level for org.springframework -->
<logger name="com.comp.logger1">
<appender ref="fileAppender1"/>
</logger>
<logger name="com.comp.logger2">
<appender ref="fileAppender2" />
</logger>
<!--sets the default priority log level -->
<root>
<priority value="all"></priority>
<appender-ref ref="fileAppender1" />
<appender-ref ref="fileAppender2" />
</root>
</log4j:configuration>
And two log files also created in the specified location.
I need to know how to log two different data's in these two different log_files independently in JAVA
class.
For example,
Logger logOne = Logger.getLogger("com.comp.logger1");
Logger logTwo = Logger.getLogger("com.comp.logger2");
The above code is not working for me. All the log informations are logged to both the created two log files. I need the separation of logging data.
My need is ,
I want to create two log file. Because my project has two modules and log each module in separate log files.
After that , I have to log each module logging data independently .
Please make sure I used the logger name for logging in my java class correctly.
Any new or complete examples using log4j.xml are greatly appreciated.
EDIT :
If I add the additivity="false" in the logger as,
<logger name="com.comp.logger1" additivity="false">
<appender ref="fileAppender1" />
</logger>
<logger name="com.comp.logger2" additivity="false">
<appender ref="fileAppender2" />
</logger>
The log data didn't logged in the created log file.The log file was empty.
Please make sure my <root>...</root>
is correct.
You problem is with the <root>
section, the root section captures all logs, and you've told it to log to both appenders...
You could remove it, or set additivity="false"
on each of your logger
elements - this will tell log4j not to log the same log through 'root' if it's already been logged through one of your 'logger's.
Edit: you don't say which version of log4j you are using, but I'm using log4j-1.2.16, and using the file in your post, it fails completely for me because it doesn't like the <appender ref="fileAppender1"/>
, it wants them to be <appender-ref ref="fileAppender1"/>
(note the -ref
after the appender). If I add these in, and also add the additivity attributes that I suggested, then for me it works as you expect.