Monday, April 02, 2007

How to log a class with JBoss and log4j.xml

Here's an example of how to log just one class in JBoss.

First in the Java class you want to log com.mycompany.MyClass.java:

if(log.isDebugEnabled()){
log.debug(System.currentTimeMillis());
}


Then in the log4j.xml do not add a threshold parameter to the appenders. I think it overrides all other categories. Instead add a priority value in the root logger.

<appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">
<errorHandler class="org.jboss.logging.util.OnlyOnceErrorHandler"/>
<param name="Target" value="System.out"/>

<layout class="org.apache.log4j.PatternLayout">
<!-- The default pattern: Date Priority [Category] Message\n -->
<param name="ConversionPattern" value="%d{ABSOLUTE} %-5p [%c{1}] %m%n"/>
</layout>
</appender>

<category name="com.mycompany.MyClass">
<appender-ref ref="CONSOLE"/>
<priority value="DEBUG" />
</category>

<root>
<appender-ref ref="CONSOLE"/>
<appender-ref ref="FILE"/>
<priority value="INFO" />
</root>

1 Comments:

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3:18 AM  

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