Spring Boot Programmatically setting profiles

How to set active profile in Spring Boot Application. This application will be deployed in standalone Tomcat.

I have 2 property files application-{profile}.properties.

My Application class:

@SpringBootApplication
public class Application extends SpringBootServletInitializer {
        
    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {        
        return application.sources(Application.class);
    }
        
    public static void main(String[] args) {
        System.setProperty(AbstractEnvironment.ACTIVE_PROFILES_PROPERTY_NAME, "dev");
        ApplicationContext ctx = SpringApplication.run(Application.class, args);
    }
}

If I run the app with embedded Tomcat the dev profile is set as active and it works fine. But when I deploy in standalone Tomcat, it does not work.

I tried to set active profile in configure method. but I get NullPointerException, when I get the environment from the context.

Any help on how to set the active profile.

I also had the same problem and after struggling for half a day I ended up with this:

    @SpringBootApplication
    public class MyApplication extends SpringBootServletInitializer {

        public static void main(String[] args) {
            System.setProperty(AbstractEnvironment.ACTIVE_PROFILES_PROPERTY_NAME, "dev");
            SpringApplication.run(MyApplication.class, args);
        }

        @Override
        public void onStartup(ServletContext servletContext) throws ServletException {
            System.setProperty(AbstractEnvironment.ACTIVE_PROFILES_PROPERTY_NAME, "dev"); 
            super.onStartup(servletContext);
        }
    }