How to run java applications on already running tomcat?

Question

Java

I use Ubuntu 16.04
Installed Tomcat 8 according to this guide -> automatic start of the server was added to autoload. Therefore, Tomcat always hangs on localhost: 8080, the start page of Tomcat opens.
I use Inteliji IDEA to create a web application, now in the launch config I have registered the path to the tomcat and the launch parameters localhost: 8081.
After starting my application, it turns out that I have 2 servers running at the same time. I do not need it. I need the application to run on an already running tomcat, which is located at localhost: 8080
How to implement this? And is this the correct practice, or is it to start Tomcat for each application launch and then stop it?

Answer 1

Either we start tomcat every time (I do this) or we set up a deployment to run on localhost