Redirecting Tomcat console output into a textfile

[Nirmala123]

Hai everybody,

how can i redirect tomcat console output into a text file.

I want to print all the error output into the textfile.Help me,

thanks in advance......

[Motoma]

Hai everybody,

how can i redirect tomcat console output into a text file.

I want to print all the error output into the textfile.Help me,

thanks in advance......

What operating system are you running Tomcat on?

[Nirmala123]

What operating system are you running Tomcat on?

Thank you for your reply.

We are using windows xp operating system.

Thanks in advance...

[Motoma]

Thank you for your reply.

We are using windows xp operating system.

Thanks in advance...

Is there a log directory in your Tomcat install directory?

[Nirmala123]

Is there a log directory in your Tomcat install directory?

logs directory is there in the tomcat directory.

Thanks in advance.

[Motoma]

logs directory is there in the tomcat directory.

Thanks in advance.

And error output is not being placed in that directory?

[Nirmala123]

I'm asking tht whatever we print in console output using System.out.prin tln should also be stored in a log file for future verification. How can we do that?
Do we have to apply some codings or we have change the settings in the xml file.
Pls provide me answers. It would be so helpful.

[Motoma]

Why not create a function that both writes output to a file and to stdout?

[Nirmala123]

Why not create a function that both writes output to a file and to stdout?

Thats why i am asking....

Give me some codings for do that

This is very helpful for me...

[Motoma]

I'm going to move this thread to the Java Forum, because the experts there will be able to help you better than I.

[itsraghz]

Is it resolved?


If not, How big is your application? I think you need to do a work around for making the SOPs printed into a log file rather than or along with the console output.

[Nirmala123]

Is it resolved?



If not, How big is your application? I think you need to do a work around for making the SOPs printed into a log file rather than or along with the console output.

Thanks for your reply.

No.I don't know the answer.

I want to print all the error messages and System.out.prin t messages in the text file.

Whatever print in the tomcat server , I want to get in that text file.

Thanks in Advance....

[r035198x]

Thanks for your reply.

No.I don't know the answer.

I want to print all the error messages and System.out.prin t messages in the text file.

Whatever print in the tomcat server , I want to get in that text file.

Thanks in Advance....

This article explains how to write to files, however, I suggest you also take a look at the Logger.

[itsraghz]

Thanks for your reply.

No.I don't know the answer.

I want to print all the error messages and System.out.prin t messages in the text file.

Whatever print in the tomcat server , I want to get in that text file.

Thanks in Advance....

Thats fine. As the admin pointed out, you may please read the articles about how to read and write into a file and about the Java Logging API.

You need to understand one thing that whatever you print using SOP (System.out.pri ntln or System.err.prin tln) they will ONLY get printed on console (screen).

If at all you want to divert or delegate the output to some other file (you may call it as a log file or text file), you have to manually replace all the SOPs with a method call which would in turn write it into a log file.

After going through the Java Logging API, what you can do is,

(i) write one class with a method for logging (as per the Logging API) with the specific properties being set (filename etc).

(ii) Manually invoke this method appropriately (if its static call with the classname; if not call with its instance) everywhere you have the System.out.prin tln or System.err.prin tln statements in your application.

If you want the output lines printed on the Console with respect to the status of Tomcat (say during its startup), you dont need to worry. Because, all information are by default getting stored into a log file with the "machine name & date and time at which it was running" (for example, "localhost_log.2 007-06-26" for the information logged while running on localhost (same machine) at 26th June 2007)).

The log file would be stored in a directory called "logs" which would be present under your TOMCAT_ROOT directory where you have installed Tomcat.

Hope this helps!