Yes.  Read up on NDC and MDC [1].  A quick web search should give you even more information.

[1] http://wiki.apache.org/logging-log4j/NDCvsMDC


Jake

On Thu, 14 Jul 2011 08:45:35 -0700 (PDT)
 fachhoch <[email protected]> wrote:

My application is configured to use log4j , all over in my code I use
log.debug  to log messages.
and exceptions are automatically logged,if some exception happens its
automatically logged.

I am asking if it is possible to configure log4j to add user information  to
the message before it logs.


if an exception happens  log4j logs the exception stack trace  , I am asking
If I can configure log4j to append additional information along with the
stack trace , this additional information I mean user details from
threadlocal.

does this makes sense ?


Jacob Kjome wrote:


Can you restate the question?  It's not clear to me what you are trying to
do, which is likely why you haven't received an answer.

Jake

On Thu, 14 Jul 2011 07:47:45 -0700 (PDT)
 fachhoch <[email protected]> wrote:

any help please ?  I want to modify the message which log4j is going to
log , please help me

fachhoch wrote:

can I add additional information when log4j logs exceptions ?,  my root
logger logs all errors ,   can I add a new line to the exception stacktrace   ie user details which is in threadlocal , is there any customization I can do before message is logged to logs ?

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