如何在Spring Security中为不同的端点设置OAuth2，LDAP身份验证？

Question

在我的应用程序中，我有一些REST层需要调用有效的OAuth2 access_token。我还有WebDav端点，必须要求通过LDAP进行身份验证。我当前的Spring Resource Server配置是：

@Configuration
@EnableResourceServer
public class ResourceServerConfiguration extends ResourceServerConfigurerAdapter {

    private final ResourceServerProperties resource;
    private final OAuth2AuthenticationEntryPoint unauthorizedEntryPoint;

    @Value("${security.oauth2.server.public.paths}")
    private String[] publicPaths;

    @Autowired
    public ResourceServerConfiguration(ResourceServerProperties resource, UnauthorizedEntryPoint unauthorizedEntryPoint) {
        this.resource = resource;
        this.unauthorizedEntryPoint = unauthorizedEntryPoint;
    }

    @Override
    public void configure(HttpSecurity http) throws Exception {
        // Logout functionality is implemented in LogoutController.
        http.logout().disable();

        http.authorizeRequests()
            .antMatchers(publicPaths).permitAll()
            .antMatchers("/api/secure/password/**").hasAnyAuthority(USER_ROLES)
            .antMatchers("/webdav/**").authenticated()

            .antMatchers("/**").denyAll();
    }

    @Override
    public void configure(ResourceServerSecurityConfigurer resources) throws Exception {
        resources.authenticationEntryPoint(unauthorizedEntryPoint).resourceId(this.resource.getResourceId());
    }
}

全球安全配置：

@EnableGlobalMethodSecurity(prePostEnabled = true, jsr250Enabled = true)
public class GlobalSecurityConfiguration extends GlobalMethodSecurityConfiguration {

    @Override
    protected MethodSecurityExpressionHandler createExpressionHandler() {
        return new OAuth2MethodSecurityExpressionHandler();
    }

    @Bean
    public AuthenticationManager authenticationManager(MyCustomOAuth2AuthenticationProvider myCustomOAuth2AuthenticationProvider, ActiveDirectoryLdapAuthenticationProvider activeDirectoryLdapAuthenticationProvider) {
        return new ProviderManager(Arrays.asList(myCustomOAuth2AuthenticationProvider, activeDirectoryLdapAuthenticationProvider));
    }
}

当我通过浏览器打开/webdav/something网址时，我会检索默认的OAuth2 401错误消息＆＃34;访问此资源需要完全身份验证＆＃34;。

如何配置Spring以尝试调用ActiveDirectoryLdapAuthenticationProvider而不是显示默认错误消息？