Spring oauth2 webclient ClientAuthorizationException: [server_error]

如何解决Spring oauth2 webclient ClientAuthorizationException: [server_error]

我正在尝试利用 Spring 5 Webclient 和内置的 oauth2 安全功能。

@Bean("oauth2WebClient")
    public WebClient oauth2WebClient(final ReactiveOAuth2AuthorizedClientManager reactiveOAuth2AuthorizedClientManager) {
        final ServerOAuth2AuthorizedClientExchangeFilterFunction serverOAuth2AuthorizedClientExchangeFilterFunction =
                new ServerOAuth2AuthorizedClientExchangeFilterFunction(reactiveOAuth2AuthorizedClientManager);
        serverOAuth2AuthorizedClientExchangeFilterFunction.setDefaultClientRegistrationId("app");
        try {

            KeyStore keyStore = KeyStore.getInstance(KeyStore.getDefaultType());
            keyStore.load(new FileInputStream(new ClassPathResource("app.jks").getFile()),"password".toCharArray());
            KeyStore trustStore = KeyStore.getInstance(KeyStore.getDefaultType());
            trustStore.load(new FileInputStream(new ClassPathResource("app.jks").getFile()),"password".toCharArray());

            // Set up key manager factory to use our key store
            KeyManagerFactory keyManagerFactory = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
            keyManagerFactory.init(keyStore,"password".toCharArray());

            TrustManagerFactory trustManagerFactory = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
            trustManagerFactory.init(trustStore);

            SslContext sslContext = SslContextBuilder.forClient()
                    .keyManager(keyManagerFactory)
                    .trustManager(trustManagerFactory)
                    .build();
//
//
//            List<Certificate> certificateList = Collections.list(trustStore.aliases())
//                    .stream()
//                    .filter(t -> {
//                        try {
//                            return trustStore.isCertificateEntry(t);
//                        } catch (KeyStoreException e1) {
//                            throw new RuntimeException("Error reading truststore",e1);
//                        }
//                    })
//                    .map(t -> {
//                        try {
//                            return trustStore.getCertificate(t);
//                        } catch (KeyStoreException e2) {
//                            throw new RuntimeException("Error reading truststore",e2);
//                        }
//                    })
//                    .collect(Collectors.toList());
//
//            X509Certificate[] certificates = certificateList.toArray(new X509Certificate[certificateList.size()]);
//            //PrivateKey trustedCerts = (PrivateKey) keyStore.getKey("certs","password".toCharArray());
//            //PrivateKey privateKey = (PrivateKey) keyStore.getKey("certs","password".toCharArray());
//            //Certificate[] certChain = keyStore.getCertificateChain("certs");
////            X509Certificate[] x509CertificateChain = Arrays.stream(certChain)
////                    .map(certificate -> (X509Certificate) certificate)
////                    .collect(Collectors.toList())
////                    .toArray(new X509Certificate[certChain.length]);
//
//            SslContext sslContext = SslContextBuilder.forClient()
//                    .keyManager(keyManagerFactory)
//                    .trustManager(certificates)
//                    .build();

            HttpClient httpClient = HttpClient.create()
                    .secure(sslContextSpec -> sslContextSpec.sslContext(sslContext));
            ClientHttpConnector connector = new ReactorClientHttpConnector(httpClient);
            return WebClient.builder()
                    .filter(serverOAuth2AuthorizedClientExchangeFilterFunction)
                    .clientConnector(connector)
                    .build();

我已确认 SSL 证书设置正确并且在我使用 Web 客户端获取访问令牌并使用该令牌触发服务调用时可以正常工作。

当我使用内置的 oauth2 库时，出现以下错误：

org.springframework.security.oauth2.client.ClientAuthorizationException: [server_error] 

我在堆栈跟踪中看到以下内容

reactor.core.publisher.FluxOnAssembly$OnAssemblyException: 
Error has been observed at the following site(s):
    |_ checkpoint ⇢ Request to POST <url>[DefaultWebClient]
Stack trace:


java.lang.Exception: #block terminated with an error

我在这里做错了什么？