September 2015
Intermediate to advanced
206 pages
4h 45m
English
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Externalizing environmental config using Java system properties
While environment variables could, on a rare occasion, be a hit or miss, the good old Java system properties can always be trusted to be there for you. In addition to using the Environment Variables and command-line arguments represented by the property names prefixed with a double dash (--), Spring Boot provides you with the ability to use the plain Java System Properties to set or override the configuration properties.
This could be useful in a number of situations, particularly if your application is running in a container that sets certain values during the startup via the system properties that you want to get access to or if a property value is not set via a command-line –D
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.