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Running Spring Boot Web App on the Random Port from Port Range

By default the spring boot web application is listening on the port 8080 for the incoming connection.

This behavior can be changed by providing server.port property value during starting of the application or as part of the application.properties or through the code by implementing EmbeddedServletContainerCustomizer.

But it would be even better if we could specified a range of the ports which can be used for the starting the application.

It would be great if I could specify a property like server.portRange=8100..8200 to define a list of the port on which I want to start my service.

In this blog post I will describe how this can be done.