How to read MANIFEST.MF inside WAR application?

Question

I would like to read MANIFEST.MF of my WAR application. How can I find its file name?

Answer 1

There are a few ways to do it, and the chosen answer is only works when you want to read Manifiest files on Servlet/SpringMVC layer or whatever layer you can access to ServletContext.

However, if you want to read a value like "version" even before Servlet starts up, like during logback configuration or something else, you might need to do some old-way classloading or Manifest file manipulation.

I found this github repository(not mine) and it includes 4 different way to read information from Manifest file. If your situation is not accessible to ServletContext, check these out.

https://github.com/khmarbaise/version-examples