Application.java

package demo;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import org.springframework.security.oauth2.config.annotation.web.configuration.EnableResourceServer;
import org.springframework.security.oauth2.provider.token.store.JwtAccessTokenConverter;
import org.springframework.security.oauth2.provider.token.store.JwtTokenStore;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@SpringBootApplication
@EnableResourceServer
@RestController
public class Application {
	
	@Bean
	public JwtTokenStore tokenStore() throws Exception {
		JwtAccessTokenConverter enhancer = new JwtAccessTokenConverter();
		// N.B. in a real system you would have to configure the verifierKey (or use JdbcTokenStore)
		enhancer.afterPropertiesSet();
		return new JwtTokenStore(enhancer);
	}

	public static void main(String[] args) {
		SpringApplication.run(Application.class, args);
	}

	@RequestMapping("/")
	public String home() {
		return "Hello World";
	}

}