httpClient发送https请求报错认证失败确少SSL证书的问题

报错内容

sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

解决办法
1NG做跳转处理，先将https请求改为向ng发送http请求，ng做跳板发送https请求

server {
          listen       80;
          server_name _;
          return 301 https://$host$request_uri;
}

解决办法2
服务端配置跳过ssl认证

 HttpPost post = new HttpPost(url);
        //创建CloseableHttpClient对象-忽略SSL证书
        CloseableHttpClient client = null;
        try {
            SSLConnectionSocketFactory scsf = new SSLConnectionSocketFactory(
                    SSLContexts.custom().loadTrustMaterial(null, new TrustSelfSignedStrategy()).build(),
                    NoopHostnameVerifier.INSTANCE);
            client = HttpClients.custom().setSSLSocketFactory(scsf).build();
        } catch (KeyManagementException e) {
            logger.error("调用接口失败:",e);
        } catch (NoSuchAlgorithmException e) {
            logger.error("调用接口失败:",e);
        } catch (KeyStoreException e) {
            logger.error("调用接口失败:",e);
        }
        RequestConfig requestConfig = RequestConfig.custom()
                .setConnectTimeout(connectTimeout)
                .setSocketTimeout(socketTimeout)
                .build();
        post.setConfig(requestConfig);
        ByteArrayEntity entity = new ByteArrayEntity(data.getBytes(StandardCharsets.UTF_8));
        entity.setContentType("application/json");
        post.setEntity(entity);
        CloseableHttpResponse res = client.execute(post);