我正在使用SolrJ 4.7.2和HttpClient 4.3.1并遇到代理身份验证的一些困难 .
我使用下面的代码通过一个服务器代理到一个单独的Solr实例 . 代理代码正在按预期工作，但是当我启用基本身份验证时，它似乎没有通过任何凭据发送到代理 . 我已经尝试了所有可能的属性组合，但我已经碰到了一堵砖墙 . 任何帮助将非常感激！
RequestConfig requestConfig = RequestConfig.custom()
.setConnectTimeout(this.connectionTimeout)
.setConnectionRequestTimeout(this.connectionTimeout)
.setSocketTimeout(this.connectionTimeout)
.build();
HttpClientBuilder httpClientBuilder = HttpClients.custom()
.setDefaultRequestConfig(requestConfig)
.setMaxConnTotal(128)
.setMaxConnPerRoute(32)
.disableRedirectHandling();
HttpHost proxy = new HttpHost(proxyUrl, proxyPort, proxyProtocol);
DefaultProxyRoutePlanner routePlanner = new DefaultProxyRoutePlanner(proxy);
CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
credentialsProvider.setCredentials(
new AuthScope(proxyUrl, proxyPort, AuthScope.ANY_REALM, "basic"),
new UsernamePasswordCredentials(proxyUsername, proxyPassword));
httpClientBuilder
.setDefaultCredentialsProvider(credentialsProvider)
.setTargetAuthenticationStrategy(new ProxyAuthenticationStrategy())
.setRoutePlanner(routePlanner);
CloseableHttpClient httpClient = httpClientBuilder.build();
HttpSolrServer solrServer = new HttpSolrServer(baseUrl, httpClient);