How does SpringBoot start multiple times in IDEA (load balancing)

During the development process, we will encounter the need to use Ribbon load balancing. We need to use a project to start multiple times to simulate the load balancing environment. In IDEA, I can right-click to copy the required project to set the name of the copied project, and remove the

tick Check the box and click ok

. The last step is to find the copied original project and change the port number to another port number (for example: 8089). Anyway, there cannot be any port numbers that are already in use. When running the copied project, you can find that the

port number has changed