Question

Jetty服务器上只有密码保护的solr。我可以使用solrj从solr读取/访问数据： - ＆gt;

HttpSolrServer solr = new HttpSolrServer("http://111.111.111:8983/solr/mysolr");
   HttpClientUtil.setBasicAuth((DefaultHttpClient) solr.getHttpClient(), "admin", "akshaybhatt");

但它给我I / O例外如下。关于authentication的SO还有其他例子，但我不知道如何在Solrj中使用身份验证。只有当我尝试更新记录（并且可能添加记录，尚未测试）时，才会出现以下错误

org.apache.solr.client.solrj.SolrServerException: IOException occured when talking to server at: http://111.111.111.138:8983/solr/mysolrcore
    at org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:507)
    at org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:199)
    at org.apache.solr.client.solrj.request.AbstractUpdateRequest.process(AbstractUpdateRequest.java:118)
    at org.apache.solr.client.solrj.SolrServer.add(SolrServer.java:116)
    at org.apache.solr.client.solrj.SolrServer.add(SolrServer.java:102)
    at UpdateSolrTesting.AddToSolr(UpdateSolrTesting.java:228)
    at UpdateSolrTesting.performaction(UpdateSolrTesting.java:141)
    at UpdateSolrTesting.main(UpdateSolrTesting.java:101)
Caused by: org.apache.http.client.ClientProtocolException
    at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:867)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:106)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:57)
    at org.apache.solr.client.solrj.impl.HttpSolrServer.request(HttpSolrServer.java:395)
    ... 7 more
Caused by: org.apache.http.client.NonRepeatableRequestException: Cannot retry request with a non-repeatable request entity.
    at org.apache.http.impl.client.DefaultRequestDirector.tryExecute(DefaultRequestDirector.java:660)
    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:486)
    at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:863)
    ... 11 more

Answer 1

这种情况的发生只是因为在执行POST或DELETE调用时没有发送身份验证参数，因此您需要在http客户端中解决此问题

我正在使用solr 6.2.0及其相应的java客户端

所以我创建了一个新的SolrHttp客户端，如下所示

public class TEHttpSolrClient extends HttpSolrClient {

private static final String UTF_8 = StandardCharsets.UTF_8.name();

public TEHttpSolrClient(String baseURL) {
    super(baseURL);
}

@Override
public NamedList<Object> request(final SolrRequest request, String collection) throws SolrServerException, IOException {
    ResponseParser responseParser = request.getResponseParser();
    if (responseParser == null) {
        responseParser = parser;
    }
    return request(request, responseParser, collection);
}

public NamedList<Object> request(final SolrRequest request, final ResponseParser processor, String collection)
        throws SolrServerException, IOException {
    HttpRequestBase method = createMethod(request, collection);
    String userPass = "<username>:<password>";
    String encoded = Base64.byteArrayToBase64(userPass.getBytes(UTF_8));
    // below line will make sure that it sends authorization token every time in all your requests
    method.setHeader(new BasicHeader("Authorization", "Basic " + encoded));
    return executeMethod(method, processor);
}

}

同样要打电话给客户，你应该像下面那样打电话给

private static SolrClient solr = new TEHttpSolrClient.Builder("<solr core url>").build();

Answer 2

您需要的是“抢占式身份验证”。这告诉 http 客户端在第一次调用 url 时进行身份验证。当使用基本身份验证时，默认行为是发送两个请求。这可能会失败，就像您的情况一样，当 http 调用中的实体不可重用时。

幸运的是，solr 已经通过为 SolrHttpClientBuilder 使用不同的客户端构建工厂来启用抢占式身份验证。

String userName = "someUserName";
String password = "secretPassword";

ModifiableSolrParams params = new ModifiableSolrParams();
params.set(HttpClientUtil.PROP_BASIC_AUTH_USER, userName);
params.set(HttpClientUtil.PROP_BASIC_AUTH_PASS, password);

// set the params for authentication here
PreemptiveBasicAuthClientBuilderFactory.setDefaultSolrParams(params);
PreemptiveBasicAuthClientBuilderFactory preemptiveBasicAuthClientBuilderFactory = new PreemptiveBasicAuthClientBuilderFactory();

// create a new client builder from the preemptive client builder factory
SolrHttpClientBuilder httpClientBuilder = preemptiveBasicAuthClientBuilderFactory
            .getHttpClientBuilder(Optional.empty());

// set the client builder to be used by the clientUtil 
HttpClientUtil.setHttpClientBuilder(httpClientBuilder);

// the params need to be passed here too
CloseableHttpClient httpAuthClient = HttpClientUtil.createClient(params);

// now build the solr client with the special http client
Builder solrClientBuilder = new HttpSolrClient.Builder(solrClientConfig.getSolrUrl()).withHttpClient(httpAuthClient);

// create solr client
SolrClient client = solrClientBuilder.build();

切记不要在请求级别设置授权参数，否则抢占式认证将不起作用。

Answer 3

类似的问题已经问过了，你可以看看下面的链接来了解一些。

写操作时Solrj认证失败

3 个答案: