..... Or simply say e.printStackTrace(System.err) in the catch block ....
which will write the error stack trace in the web servers log file .... !
Note: something like this is only good for debuggin purposes .... for a proper
logging of the application generated messages .... build on what Kevin Jones
mentions.
Rishi.
Kevin Jones wrote:
> I use this -
>
> try
> {
> ...
> }
> catch(Exception e)
> {
> StringWriter sw = new StringWriter();
> PrintWriter pw = new PrintWriter(sw);
> e.printStackTrace(pw);
> log(sw.toString());
> }
>
> This logs the stack trace in the error log for that servlet container,
>
> Kevin
>
> -----Original Message-----
> From: A mailing list for discussion about Sun Microsystem's Java Servlet
> API Technology. [mailto:[EMAIL PROTECTED]]On Behalf Of
> Xizhen Wang
> Sent: 21 October 1999 07:34
> To: [EMAIL PROTECTED]
> Subject: Re: How to know which line produces the Exception?
>
> What if I am using Servlet and the output is an output stream to the
> browser, (which means I cannot see the DOS or Java Console window). Or
> how can I redirect the System.out to anther output stream? Or if I use
> System.out.println, where does it print? to a log file?
>
> Thank you!
>
> Xizhen
>
> John Weirich wrote:
> >
> > Like this:
> >
> > catch (IOException e) {
> > System.out.println("Problem reading line from input file. " + e);
> > e.printStackTrace();
> > }
> >
> > -jw
> >
> > "Mishra, Sunil" wrote:
> >
> > > print the stack trace in the catch block.
> >
> > --
> > stay fun.
>
> ___________________________________________________________________________
> To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
> of the message "signoff SERVLET-INTEREST".
>
> Archives: http://archives.java.sun.com/archives/servlet-interest.html
> Resources: http://java.sun.com/products/servlet/external-resources.html
> LISTSERV Help: http://www.lsoft.com/manuals/user/user.html
>
> ___________________________________________________________________________
> To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
> of the message "signoff SERVLET-INTEREST".
>
> Archives: http://archives.java.sun.com/archives/servlet-interest.html
> Resources: http://java.sun.com/products/servlet/external-resources.html
> LISTSERV Help: http://www.lsoft.com/manuals/user/user.html
___________________________________________________________________________
To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
of the message "signoff SERVLET-INTEREST".
Archives: http://archives.java.sun.com/archives/servlet-interest.html
Resources: http://java.sun.com/products/servlet/external-resources.html
LISTSERV Help: http://www.lsoft.com/manuals/user/user.html
