How to pass the -D additional parameter while starting tomcat?

Question

I have a maven project, after running command mvn install all project as well as module compile and copied to local repository successfully. But now I want

Answer 1

I have tested params for Tomcat 7/8 on Windows 10 and CentOs 7 (Linux).
1) On Windows need to create setenv.bat in the {TOMCAT_HOME}/bin/ path and insert there such code:

set CATALINA_OPTS=-Dapp.username=admin -Dapp.password=12345

IMPORTANT: do not use quotes (" ") for setting params on windows.

2) On CentOs need to create setenv.sh in the {TOMCAT_HOME}/bin/ path and insert there such code:

export CATALINA_OPTS="-Dapp.username=admin -Dapp.password=12345"

You can also create {TOMCAT_HOME}/conf/conf.d/custom.conf and insert the same export command there.