@SpringBootApplication
@EnableOAuth2Client
@RestController
@EnableAuthorizationServer

public class Oauthtutorial1Application extends WebSecurityConfigurerAdapter {

@RequestMapping("/user")
public Principal user(Principal principal) {
return principal;
}

public static void main(String[] args) {
  SpringApplication.run(Oauthtutorial1Application.class, args);
}

@Autowired
OAuth2ClientContext oauth2ClientContext;

@Bean
public FilterRegistrationBean oauth2ClientFilterRegistration(
    OAuth2ClientContextFilter filter) {
FilterRegistrationBean registration = new FilterRegistrationBean();
registration.setFilter(filter);
registration.setOrder(-100);
return registration;
}
@Override
protected void configure(HttpSecurity http) throws Exception {
http
        .antMatcher("/**")
        .authorizeRequests()
        .antMatchers( "/","/login**", "/webjars/**", "/error**")
        .permitAll()
        .anyRequest()
        .authenticated()
        .and().exceptionHandling()
        .authenticationEntryPoint(new LoginUrlAuthenticationEntryPoint("/"))
.and().logout().logoutSuccessUrl("/").permitAll()
.and().csrf().csrfTokenRepository(CookieCsrfTokenRepository.withHttpOnlyFalse())
        .and().addFilterBefore(ssoFilter(), BasicAuthenticationFilter.class);
}

private Filter ssoFilter() {
CompositeFilter filter = new CompositeFilter();
List<Filter> filters = new ArrayList<>();
filters.add(ssoFilter(facebook(), "/login/facebook"));
filters.add(ssoFilter(github(), "/login/github"));
filter.setFilters(filters);
return filter;
}

private Filter ssoFilter(ClientResources client, String path) {
OAuth2ClientAuthenticationProcessingFilter filter = new             OAuth2ClientAuthenticationProcessingFilter(path);
OAuth2RestTemplate template = new OAuth2RestTemplate(client.getClient(),    oauth2ClientContext);
filter.setRestTemplate(template);
UserInfoTokenServices tokenServices = new UserInfoTokenServices(
        client.getResource().getUserInfoUri(), client.getClient().getClientId());
tokenServices.setRestTemplate(template);
filter.setTokenServices(tokenServices);
return filter;
}
class ClientResources {
@NestedConfigurationProperty
private AuthorizationCodeResourceDetails client = new AuthorizationCodeResourceDetails();
@NestedConfigurationProperty
private ResourceServerProperties resource = new ResourceServerProperties();

public AuthorizationCodeResourceDetails getClient() {
    return client;
}

public ResourceServerProperties getResource() {
    return resource;
}
}

@Bean
@ConfigurationProperties("github")
public ClientResources github() {
return new ClientResources();
}

@Bean
@ConfigurationProperties("facebook")
public ClientResources facebook() {
return new ClientResources();
}
}

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
        </plugin>
    </plugins>
</build>