I use Log4j to write some log my program. I find and read many question and answer in this site, but i can't solve my problem.
Here my code:
1. log4j.xml
<appender name="rollingfileAppender" class="org.apache.log4j.DailyRollingFileAppender">
<param name="append" value="true"/>
<param name="file" value="logs/process.log"/>
<param name="DatePattern" value="'.'yyyy-MM-dd-HH"/>
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss:SSS} %-5p [%c{1}] %m%n"/>
</layout>
</appender>
<root>
<level value="DEBUG"/>
<appender-ref ref="rollingfileAppender"/>
<appender-ref ref="stdout"/>
</root>
2. My java code
package TestPacket;
import org.apache.log4j.Logger;
import org.apache.log4j.xml.DOMConfigurator;
public class TestLog4jXML {
static Logger logger = org.apache.log4j.Logger.getLogger(TestLog4jXML.class.getName());
public TestLog4jXML() {
}
public static void main(String[] args) {
try {
DOMConfigurator.configure("log4j1.xml");
logger.trace("Entering application.");
logger.debug("Debug");
logger.info("info");
logger.warn("warn");
logger.error("error");
logger.fatal("fatal");
lungtng();
} catch (Exception e) {
e.printStackTrace();
}
}
public static void lungtng()
{
logger.fatal("some text here");
logger.info("hello picaso");
}
}
And i run my program, with eclipse, windows os. But the log file name only: process.log not in daily format: process.log.yyyy-MM-dd-HH
Who can explain this to me?
It appears that if you're running windows this is a known bug:
see here: http://do.whileloop.org/2014/02/14/log4j-rolling-file-appenders-in-windows/
See here: https://issues.apache.org/bugzilla/show_bug.cgi?id=29726
And also here: http://www.coderanch.com/t/424837/java/java/Log-log-file-rolled-day
The solutions seems to be to use the extras here: http://logging.apache.org/log4j/extras/
Try using this appender with the correct policies defined:
http://logging.apache.org/log4j/extras/apidocs/org/apache/log4j/rolling/RollingFileAppender.html