Display thread id instead thread name in log

Question

I have a Struts application with log4j to display information about application.

The pattern to format log\'s output is as follows:

log4j.appender.RA         


        

Answer 1

I think it is not possible to show thread id with standard log4j formatting. I also investigated through code of PatterParser class an found nothing which can be useful. I found some custom solutions, but only for IBM server which has %i option:

%i: Inserts the thread ID. Unlike the thread name (indicated by %t), this is thread's numeric ID. Note that this parameter is particular to Initiate, while the other parameters listed here are standard with log4j.

See this link