nested exception is javax.net.ssl.SSLException: Received fatal alert: protocol_version

 

报错：

 org.springframework.web.client.ResourceAccessException: I/O error on POST request for "https://xxxxx": Received fatal alert: protocol_version; nested exception is javax.net.ssl.SSLException: Received fatal alert: protocol_version

 

使用 restTemplate.postForObject 请求接口报错，之前访问的是http，没有报错，

原本代理里使用的TLS版本为1.0，访问 https://myssl.com/ ，输入待检测的访问域名，

查询结果：协议与套件->支持协议-> 获取支持的TLS协议版本

修改Template的配置，修改版本配置，如下

public static RestTemplate getRestTemplate() throws KeyStoreException, NoSuchAlgorithmException, KeyManagementException {
        SSLContext sslContext = new SSLContextBuilder().loadTrustMaterial(null, new TrustStrategy() {
            @Override
            public boolean isTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {
                return true;
            }
        }).build();

        SSLConnectionSocketFactory csf = new SSLConnectionSocketFactory(sslContext,
                new String[]{"TLSv1.2"},
                null,
                NoopHostnameVerifier.INSTANCE);

        CloseableHttpClient httpClient = HttpClients.custom()
                .setSSLSocketFactory(csf)
                .build();

        HttpComponentsClientHttpRequestFactory requestFactory =
                new HttpComponentsClientHttpRequestFactory();

        requestFactory.setHttpClient(httpClient);
        return new RestTemplate(requestFactory);
    }