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Mark,
On 9/17/12 1:36 PM, Mark Eggers wrote:
> So really, for me, it boils down to this.
>
> 1. Place log4j.xml in WEB-INF/classes 2. Write a servlet context
> listener a. contextInitialized - just write something to the log b.
> contextDestroyed - shut down logging if the app started it
Yup. Here's mine:
...
import javax.servlet.ServletContextListener;
import javax.servlet.ServletContextEvent;
import org.apache.log4j.PropertyConfigurator;
import org.apache.log4j.Logger;
import org.apache.log4j.LogManager;
...
public class Log4jListener
implements ServletContextListener
{
private Logger logger;
public void contextInitialized(ServletContextEvent e)
{
// Trigger loading of the log4j.properties file from the
classpath.
new PropertyConfigurator();
logger = Logger.getLogger(this.getClass());
logger.info("Log4j initialized");
}
public void contextDestroyed(ServletContextEvent e)
{
if(LogManager.class.getClassLoader()
.equals(this.getClass().getClassLoader()))
{
if(null != logger)
logger.info("Log4j was loaded by application
classloader; shutting down.");
LogManager.shutdown();
}
else
{
if(null != logger)
logger.info("Log4j was loaded by some other
ClassLoader; not shutting down.");
}
}
}
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