1. Don't run configure() for each request. Run once at application startup
and then never again. Use a startup servlet or, better yet, a servlet context
listener.
2. PropertyConfigurator(String) assumes that the path points to a File. That
is, it is *not* loading from the classpath, but loading a regular file in an
arbitrary location on the file system. Because you are passing a file name
and not a fully qualified path to the file, it is looking for this file in
the directory from which the JVM started. If you were using Tomcat Standalone
running from the startup.bat file, it would be looking in CATALINA_HOME/bin.
I'm sure this is not what you meant to do.
If you really want to manually configure Log4j, then load up the properties
file as a properties object and pass that to configure(). Or load it from the
classpath as a URL and pass that to configure().
Jake
On Thu, 24 Jan 2008 13:01:58 +0530
"Sneha Nikum" <[EMAIL PROTECTED]> wrote:
Hi Jacob,
Firstly, thanks for the mail.
Here is the config file,
log4j.rootLogger=, A1, A2
# A1 is set to be ConsoleAppender sending its output to System.out
log4j.appender.A1=org.apache.log4j.ConsoleAppender
# A1 uses PatternLayout.
log4j.appender.A1.layout=org.apache.log4j.PatternLayout
# The conversion pattern consists of date in ISO8601 format, level,
# thread name, logger name truncated to its rightmost two components
# and left justified to 17 characters, location information consisting
# of file name (padded to 13 characters) and line number, nested
# diagnostic context, the and the application supplied message
log4j.appender.A1.layout.ConversionPattern=%d %-5p [%t] %-17c{2}- %m%n
# Appender A2 writes to the file "test".
log4j.appender.A2=org.apache.log4j.FileAppender
log4j.appender.A2.File=C:\my_hosted_service\logs\logfile.txt
# Truncate 'logger' if it aleady exists.
log4j.appender.A2.Append=true
# Appender A2 uses the PatternLayout.
log4j.appender.A2.layout=org.apache.log4j.PatternLayout
log4j.appender.A2.layout.ConversionPattern=%d %-5p [%t] %c{2} - %m%n
And this is the way its been used in my code:
import org.apache.log4j.FileAppender;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;
import org.apache.log4j.PatternLayout;
import org.apache.log4j.PropertyConfigurator;
import org.apache.log4j.WriterAppender;
some more imports here....
public class MyFilter implements Filter {
static Logger logger = Logger.getLogger("MyFilter");
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain fChain) throws IOException, ServletException {
PropertyConfigurator.configure("logger.properties"); //property file placed
under WEB-INF/classes
logger.info("Info log message);
logger.debug("debug log message");
// reset of my code
}
Here is how I have used log4j in my code.
I am new to both log4j and JBOSS, so can you please let me know what is the
necessary that i need to do to get my logs under
"C:\my_hosted_service\logs\logfile.txt". I have also checked all the places
but no "logfile.txt" is being created. And i could see my application logs
aswell into the JBOSS server.txt logs along with the server logs.
Thanks and ragards
Sneha
On Jan 23, 2008 10:56 PM, Jacob Kjome <[EMAIL PROTECTED]> wrote:
First, last I heard, JBoss uses single uber-classloader. The log4j.jar in
your own application won't be used if it's already been loaded by JBoss as
a
server library. Even if single classloader concept wasn't used, unless
JBoss
allowed you to configure your webapps to use child-first classloading
behavior, you can't expect your copy of log4j.jar in WEB-INF/lib to be
used.
Since it's pretty clear that the server-provided log4j.jar is being used
and
we know that log4j, by default, loads the first log4j.xml or
log4j.properties
(in that order) that it finds at the first use of LogManager.class, you
are
correct in thinking that some other log4j configuration file is being
used....
at least initially.
Furthermore, from what I remember, JBoss sets it's own logger repository
selector to separate application logging (and server logging). So, even
if
you see logs showing up in JBoss's configured areas, this might only apply
to
the logger repository that the JBoss server is using, not individual
applications running under JBoss.
That said, I'm not sure why you don't see creation of your log file? Your
properties file wasn't atached to the message (I think the list strips
attachments). Just paste it as text in the message next time. When you
run
configure(), it should be configuring the logger repository assigned to
your
application (again, assuming JBoss is, indeed, setting the repository
selector
at startup). And you shouldn't be calling configure() more than once in
the
entirety of your running application, unless you really understand what
your
are doing and mean to do it. That doesn't appear to be the case here.
One thing to check is that the directory you want your log file to appear
is
has been created. Log4j won't do that for you. If the directory doesn't
exist, your log file won't exist. In any case, paste your config and give
us
more info on what JBoss is doing as far as setting repository selectors
and
whatnot. I am not an expert in JBoss (haven't used it for years), so
take
what I say about it with a grain of salt.
Jake
On Wed, 23 Jan 2008 10:52:06 +0530
"Sneha Nikum" <[EMAIL PROTECTED]> wrote:
> Hi Ruchi,
> I will surely try this out. But am yet not sure if this is going to
> work, because the problem here is that the .property file that I have
> written is simply not used. Its using the .property file that is in the
> <JBOSS_HOME>server\default\conf directory. The log4j.xml file is being
used.
> But anyways wil give this a try. Thanks for the prompt reply
>
> Thanks and Regards
> --
> Sneha Anil Nikum
> Don't get even with people
> get AHEAD of them!
>
>
> On Jan 23, 2008 10:44 AM, Ruchi Mishra <[EMAIL PROTECTED]> wrote:
>
>> Hi Sneha,
>>
>> What you can do is create a log4jinitServlet class and in that servlet
>> configure the path of your properties file.
>> This servlet need to be mapped in your web.xml file.
>>
>> regards
>> Ruchi
>>
>>
>>
>>
>>
>>
>>
>> ________________________________
>>
>> From: Sneha Nikum [mailto:[EMAIL PROTECTED]
>> Sent: Wednesday, January 23, 2008 10:38 AM
>> To: [email protected]
>> Subject: Help needed with log4j used with JBOSS server
>>
>>
>> Hi,
>> I am Sneha, I am working on creating a hosted service, and using
>> log4j for logging purpose. I am new to it.
>> I am trying to log the details to a log file, using a .properties
>> file. I have placed this file into the WEB-INF->classes directory.
>> But yet, after I run the project, the log file is not getting created,
>> the logs are going into the server.log file of JBOSS. I think this
>> problem has something to do with the class loaders. As JBOSS also has
>> its own log4j.jar .
>>
>> I have attached with this mail the property file.
>> Also in the main code,
>> I create an instance of the Logger class as below:
>> static
>> Logger logger = Logger.getLogger("MyLogger" );
>> And also within each fuction configure the properties as:
>> PropertyConfigurator.configure("logger.properties");
>> Can you please help me with this problem? If this is not the right
place
>> to mail my doubts, can you please point me towards the right person?
>> Waiting for your reply.
>>
>> Thanks and Regards
>>
>> --
>> Sneha Anil Nikum
>> Don't get even with people
>> get AHEAD of them!
>>
>>
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>
>
>
> --
> Sneha Anil Nikum
> Don't get even with people
> get AHEAD of them!
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