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JavaWebServer Log

Posted on 2000-02-02
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Last Modified: 2010-04-01
I am using JavaWebServer2.0 for deploying my servlets. For testing the code I have put System.out.println() and System.err.println() but the messages are not coming in the log files in the sub-directories of the logs folder of JavaWebServer2.0. Can anyone tell me as to where I should look for the messages or what should be the strategy for debugging.

regards.
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Question by:dipak_kr_ghosh
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Expert Comment

by:rainmal
ID: 2484696
Don't use System.out to write to the server log
just call log() with your message.

For example
log("error");

This will log the message into the event log of the web server

you should generally override this function though.
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rainmal earned 200 total points
ID: 2484716
you can also implement your custom log file method by overriding the log in your Servlet by changing the line in that method above and implementing the method with same return type & signature.

i.e
say IsrServlet.java is your file

class IsrServlet extends ......
{
   public void log(String msg)
  {
      getServletContext().log(getClass().getName() + ":CHANGED LOG "+        msg);
 }
 
}

or force the log into your own file using
try
{
      PrintStream f = new PrintStream(new               FileOutputStream(File.separator + "log.log"),false);
      System.setOut(f);
      System.setErr(f);
}
catch(Exception e)
{}
 
hope this helps .
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Author Comment

by:dipak_kr_ghosh
ID: 2492414
Hi rainmal
 I tried out your first suggestion, but it did not work. Any way now I am writing all the necessary output to my own file than depending on the server for that.
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Expert Comment

by:rainmal
ID: 2492996
well make sure you are looking for the log in your server event log .

For thr java web server , it logs in the event log which you read thru the server admin util...I'm pretty sure of that cause I've personally used it.
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