MainController.java

package de.learny.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.env.Environment;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/api/")
public class MainController {

	@RequestMapping(value = "/hello", method = RequestMethod.GET)
	String hello() {
		return "Hello World";
	}

	@Autowired
	private Environment environment;

	@RequestMapping("/profile")
	String getProfile() {
		if(environment.getActiveProfiles().length > 0) {
			return environment.getActiveProfiles()[0];
		} else {
			return "";
		}
	}

}