Spring启动：使用oauth2保护api端点,同时拥有mvc UI页面

我正在尝试使用标准登录的spring-boot mvc应用程序,同时使用oAuth2安全性公开一些API端点.
基本上我的要求如下：

如果用户点击主页(“/”),请检查它是否经过身份验证.
如果没有显示登录表单,则显示主页.
但是,用户还应该能够请求oauth身份验证令牌,并使用该令牌access / api / assignment / {id}.

我可以让标准登录工作,我可以让oauth2工作,但我不能让他们一起工作.

这是我目前的配置：

WebSecurityConfig

@Configuration
@EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
    @Autowired
    private DataSource dataSource;

    @Override
    @Bean
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }

    @Override
    protected void configure(HttpSecurity http) throws Exception {
        super.configure(http);        
    }

    @Autowired
    public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {    
        auth.jdbcAuthentication().dataSource(this.dataSource).passwordEncoder(new BCryptPasswordEncoder());
    }
}

OAuth2Config

@Configuration
@EnableResourceServer
@EnableAuthorizationServer
public class OAuth2Config {

protected static final String RESOURCE_ID = "oauthdemo";

@Configuration
@EnableResourceServer
protected static class ResourceServer extends ResourceServerConfigurerAdapter {

    @Override
    public void configure(HttpSecurity http) throws Exception {
      http          
      .httpBasic().disable()
      .authorizeRequests()
        .antMatchers("/js/**","/css/**","/images/**","/webjars/**","/login").permitAll()
          .anyRequest().authenticated()
          .and()
      .formLogin()
          .loginPage("/login")
          .permitAll()
          .and()
      .logout()
          .permitAll();

    }

    @Override
    public void configure(ResourceServerSecurityConfigurer resources) throws Exception {
        resources.resourceId(RESOURCE_ID);
    }
}


@Configuration
@EnableAuthorizationServer
protected static class AuthServer extends AuthorizationServerConfigurerAdapter {

    @Autowired
    @Qualifier("authenticationManagerBean")
    private AuthenticationManager authenticationManager;

    @Override
    public void configure(AuthorizationServerSecurityConfigurer oauthServer) throws Exception {
        oauthServer.allowFormAuthenticationForClients();
    }

    @Override
    public void configure(AuthorizationServerEndpointsConfigurer endpoints) throws Exception {
        endpoints.authenticationManager(authenticationManager);
    }

    @Override
    public void configure(ClientDetailsServiceConfigurer clients) throws Exception {
        clients.inMemory()
                .withClient("client")
                .authorizedGrantTypes("password","refresh_token")
                .authorities("ROLE_USER")
                .scopes("read")
                .resourceIds(RESOURCE_ID)
                .secret("secret").accessTokenValiditySeconds(3600);
    }

}

}

问题是我在尝试打开主页时遇到以下错误(“/”)