在Spring MVC中初始化OAuth WebClient Bean

@Configuration
public class OAuthWebClientConfig {

    @Value("${spring.security.oauth2.client.registration.client-id}")
    private String clientId;

    @Value("${spring.security.oauth2.client.registration.client-secret}")
    private String clientSecret;

    @Value("${spring.security.oauth2.client.provider.oauth2.authorization-uri}")
    private String authorizationUri;

    @Value("${spring.security.oauth2.client.provider.oauth2.token-uri}")
    private String tokenUri;

    @Bean
    public OAuth2AuthorizedClientManager authorizedClientManager(
            ClientRegistrationRepository clientRegistrationRepository,
            OAuth2AuthorizedClientRepository authorizedClientRepository) {

        OAuth2AuthorizedClientProvider authorizedClientProvider =
                OAuth2AuthorizedClientProviderBuilder.builder()
                        .clientCredentials()
                        .build();

        DefaultOAuth2AuthorizedClientManager authorizedClientManager =
                new DefaultOAuth2AuthorizedClientManager(
                        clientRegistrationRepository, authorizedClientRepository);
        authorizedClientManager.setAuthorizedClientProvider(authorizedClientProvider);

        return authorizedClientManager;
    }

    @Bean
    public WebClient webClient(OAuth2AuthorizedClientManager authorizedClientManager,
                               OAuth2AuthorizedClientService authorizedClientService) {

        ServletOAuth2AuthorizedClientExchangeFilterFunction oauth2Client =
                new ServletOAuth2AuthorizedClientExchangeFilterFunction(
                        authorizedClientManager);
        oauth2Client.setDefaultOAuth2AuthorizedClient(true);

        return WebClient.builder()
                .apply(oauth2Client.oauth2Configuration())
                .build();
    }

    @Bean
    public OAuth2AuthorizedClientService authorizedClientService(
            OAuth2AuthorizedClientRepository authorizedClientRepository) {

        return new DefaultOAuth2AuthorizedClientService(
                authorizedClientRepository);
    }

    @Bean
    public OAuth2AuthorizedClientRepository authorizedClientRepository(
            HttpSession session) {

        return new HttpSessionOAuth2AuthorizedClientRepository(session);
    }

    @Bean
    public ClientRegistrationRepository clientRegistrationRepository() {
        ClientRegistration clientRegistration = ClientRegistration.withRegistrationId("oauth")
                .clientId(clientId)
                .clientSecret(clientSecret)
                .authorizationUri(authorizationUri)
                .tokenUri(tokenUri)
                .build();

        return new InMemoryClientRegistrationRepository(clientRegistration);
    }
}