[Solved] How to redirect System.out (and logging output) to a string

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1

Hello everyone,
I’ve been working on a GUI for my server console lately, and stumbled upon a problem:
I’d like to display the console with all System.out and logging stuff. My plan is to get that into a string and feed it into a JTextField.
Any ideas on how to get that string?

2

Add a log handler to the logging system to catch those messages.

To catch stdout in Java, google would probably give you a thousand hits… but it’s actually on the same class where you get System.out from… System.

http://docs.oracle.com/javase/7/docs/api/java/lang/System.html#setOut(java.io.PrintStream)

But really… just google that:
https://www.google.com/search?q=capture+java+stdout&ie=utf-8&oe=utf-8

3

Thanks, but does capturing stdout also get the log messages?
EDIT: Also, is the method of swapping the streams performant enough to be used in the simpleUpdate() of the server?

4

No… that’s why I already said:

If you can’t find that in javadoc or google then I can be your personal search engine for that also… but I thought maybe I’d give you a chance to flex your search muscles.

5

Thanks. I found the StreamHandler, it’s working pretty well. :smiley: