java api连接kerberos认证的es 生成一个demo
时间: 2024-02-17 22:04:53 浏览: 24
好的,我可以为您提供一个简单的 Java Demo 来连接 Kerberos 认证的 Elasticsearch API。在此之前,请确保您已经配置好了 Kerberos 认证和 Elasticsearch。以下是您可以使用的示例代码:
```java
import org.apache.http.HttpHost;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.nio.client.HttpAsyncClientBuilder;
import org.elasticsearch.action.search.SearchRequest;
import org.elasticsearch.client.RequestOptions;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestClientBuilder;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.common.settings.Settings;
import org.elasticsearch.common.transport.TransportAddress;
import org.elasticsearch.common.unit.TimeValue;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.search.builder.SearchSourceBuilder;
import org.elasticsearch.xpack.security.authc.Authentication;
import org.elasticsearch.xpack.security.authc.AuthenticationException;
import org.elasticsearch.xpack.security.authc.support.UsernamePasswordToken;
import java.io.IOException;
import java.net.InetAddress;
import java.util.concurrent.TimeUnit;
public class ElasticsearchKerberosDemo {
public static void main(String[] args) throws IOException {
// Elasticsearch 集群节点的主机名和端口号
HttpHost[] httpHosts = {
new HttpHost("localhost", 9200, "http")
};
// Kerberos 认证信息
String realm = "EXAMPLE.COM";
String username = "user1";
String password = "password";
// 创建 Kerberos 认证凭证
Authentication auth = new UsernamePasswordToken(username, password);
// 创建认证提供程序
CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
credentialsProvider.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(username, password));
// 创建 RestClientBuilder
RestClientBuilder builder = RestClient.builder(httpHosts)
.setHttpClientConfigCallback(new RestClientBuilder.HttpClientConfigCallback() {
@Override
public HttpAsyncClientBuilder customizeHttpClient(HttpAsyncClientBuilder httpClientBuilder) {
return httpClientBuilder.setDefaultCredentialsProvider(credentialsProvider);
}
})
.setRequestConfigCallback(requestConfigBuilder -> requestConfigBuilder
.setConnectTimeout(5000)
.setSocketTimeout(60000));
// 添加 Kerberos 认证
builder.setHttpClientConfigCallback(httpClientBuilder -> {
httpClientBuilder.setDefaultAuthSchemeRegistry(authSchemeRegistry ->
authSchemeRegistry.register("SPNEGO", new KerberosSchemeFactory()));
httpClientBuilder.setSPNegoSchemeEnabled(true);
return httpClientBuilder;
});
// 创建 RestHighLevelClient
RestHighLevelClient client = new RestHighLevelClient(builder);
// 构建搜索请求
SearchRequest searchRequest = new SearchRequest();
searchRequest.indices("my-index");
searchRequest.source(new SearchSourceBuilder().query(QueryBuilders.matchAllQuery()));
// 执行搜索请求
RequestOptions options = RequestOptions.DEFAULT.toBuilder()
.setAuthentication(auth)
.build();
client.search(searchRequest, options);
// 关闭客户端连接
client.close();
}
}
```
这是一个简单的示例,它使用 Kerberos 认证连接 Elasticsearch,并执行一个简单的搜索请求。您需要将示例代码中的主机名、端口号、认证信息和搜索请求配置更改为您自己的 Elasticsearch 配置。