oauth2请求参数修改

如果您需要修改OAuth2请求中的参数名称，您需要配置一个 OAuth2AuthorizedClientProvider bean。您可以使用 DefaultOAuth2AuthorizedClientProvider 类作为基础，并在其上修改所需的参数名称。例如，以下代码片段将 authorizationCode 的参数名称更改为 custom_code：

@Configuration
@EnableOAuth2Client
public class OAuth2Configuration {

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

        DefaultOAuth2AuthorizedClientManager authorizedClientManager =
                new DefaultOAuth2AuthorizedClientManager(
                        clientRegistrationRepository, authorizedClientRepository);

        DefaultOAuth2AuthorizedClientProvider authorizedClientProvider =
                new DefaultOAuth2AuthorizedClientProvider();

        authorizedClientProvider.setAuthorizationCodeTokenResponseClient(
                new OAuth2AuthorizationCodeGrantRequestEntityConverter() {
                    @Override
                    public RequestEntity<?> convert(OAuth2AuthorizationCodeGrantRequest request) {
                        HttpHeaders headers = new HttpHeaders();
                        headers.setContentType(MediaType.APPLICATION_FORM_URLENCODED);
                        MultiValueMap<String, String> parameters = new LinkedMultiValueMap<>();
                        parameters.add("client_id", request.getClientId());
                        parameters.add("custom_code", request.getAuthorizationCode());
                        ...
                        // 添加其它参数
                        ...
                        return new RequestEntity<>(parameters, headers, HttpMethod.POST, request.getAccessTokenUri());
                    }
                });

        authorizedClientManager.setAuthorizedClientProvider(authorizedClientProvider);

        return authorizedClientManager;
    }
}

这个例子使用 DefaultOAuth2AuthorizedClientProvider 和 DefaultOAuth2AuthorizedClientManager 类。然后，它使用匿名内部类重写了 OAuth2AuthorizationCodeGrantRequestEntityConverter 类。在 convert() 方法中，我们可以设置任何要发送到授权服务器的参数，包括更改 authorizationCode 参数的名称为 custom_code。