elasticsearch加密后,java怎么建立连接
时间: 2024-03-16 10:46:41 浏览: 47
Elasticsearch的加密主要分为两种方式:SSL/TLS加密和X-Pack安全加密。下面分别介绍这两种加密方式下Java建立连接的方法:
1. SSL/TLS加密
SSL/TLS加密是通过在Elasticsearch和客户端之间建立安全连接来实现的。在Java中,可以通过添加SSL/TLS相关配置来建立安全连接。以下是一个使用SSL/TLS加密连接Elasticsearch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.config.RequestConfig;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.ssl.NoopHostnameVerifier;
import org.apache.http.conn.ssl.SSLConnectionSocketFactory;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.ssl.SSLContexts;
import org.elasticsearch.client.Request;
import org.elasticsearch.client.Response;
import org.elasticsearch.client.RestClient;
import javax.net.ssl.SSLContext;
import java.io.IOException;
import java.security.KeyStore;
import java.util.Collections;
import java.util.Map;
public class Main {
public static void main(String[] args) throws Exception {
// SSL/TLS相关配置
KeyStore truststore = null; // 可以自定义信任证书
SSLContext sslContext = SSLContexts.custom().loadTrustMaterial(truststore, null).build();
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sslContext, new NoopHostnameVerifier());
// HTTP客户端相关配置
BasicCredentialsProvider credentialsProvider = new BasicCredentialsProvider();
credentialsProvider.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials("username", "password"));
RequestConfig requestConfig = RequestConfig.custom().setConnectTimeout(5000).setSocketTimeout(10000).build();
CloseableHttpClient httpClient = HttpClients.custom().setDefaultCredentialsProvider(credentialsProvider).setDefaultRequestConfig(requestConfig).setSSLSocketFactory(sslsf).build();
// Elasticsearch客户端相关配置
RestClient restClient = RestClient.builder(new HttpHost("localhost", 9200, "https")).setHttpClient(httpClient).build();
// 发送请求
Map<String, String> params = Collections.singletonMap("pretty", "true");
Request request = new Request(HttpGet.METHOD_NAME, "/_cat/indices");
request.addParameters(params);
Response response = restClient.performRequest(request);
// 解析响应
String responseBody = EntityUtils.toString(response.getEntity());
System.out.println(responseBody);
// 关闭客户端
restClient.close();
}
}
```
请注意,上述示例代码中的用户名和密码是占位符,请替换成实际的用户名和密码。另外,如果你使用的是自签名证书,需要在SSLContexts.custom()方法中传入自定义的信任证书。
2. X-Pack安全加密
X-Pack是Elasticsearch官方提供的安全插件,可以实现多种安全功能,包括身份验证、授权、加密等。在Java中,可以通过添加X-Pack安全相关配置来建立安全连接。以下是一个使用X-Pack安全加密连接Elasticsearch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.config.RequestConfig;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.elasticsearch.client.Request;
import org.elasticsearch.client.Response;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestClientBuilder;
import java.util.Collections;
import java.util.Map;
public class Main {
public static void main(String[] args) throws Exception {
// X-Pack安全相关配置
RestClientBuilder builder = RestClient.builder(new HttpHost("localhost", 9200, "https"))
.setHttpClientConfigCallback(httpClientBuilder -> {
httpClientBuilder.disableAuthCaching();
return httpClientBuilder;
})
.setRequestConfigCallback(requestConfigBuilder -> {
requestConfigBuilder.setConnectTimeout(5000);
requestConfigBuilder.setSocketTimeout(10000);
return requestConfigBuilder;
})
.setHttpClientConfigCallback(httpClientBuilder -> {
httpClientBuilder.setDefaultCredentialsProvider(new BasicCredentialsProvider());
return httpClientBuilder;
})
.setHttpClientConfigCallback(httpClientBuilder -> {
httpClientBuilder.setSSLHostnameVerifier((s, sslSession) -> true);
return httpClientBuilder;
})
.setHttpClientConfigCallback(httpClientBuilder -> {
httpClientBuilder.setDefaultCredentialsProvider(new BasicCredentialsProvider() {{
setCredentials(AuthScope.ANY, new UsernamePasswordCredentials("username", "password"));
}});
return httpClientBuilder;
});
// Elasticsearch客户端相关配置
RestClient restClient = builder.build();
// 发送请求
Map<String, String> params = Collections.singletonMap("pretty", "true");
Request request = new Request(HttpGet.METHOD_NAME, "/_cat/indices");
request.addParameters(params);
Response response = restClient.performRequest(request);
// 解析响应
String responseBody = EntityUtils.toString(response.getEntity());
System.out.println(responseBody);
// 关闭客户端
restClient.close();
}
}
```
请注意,上述示例代码中的用户名和密码是占位符,请替换成实际的用户名和密码。另外,如果你使用的是自签名证书,需要设置SSLHostnameVerifier为接受所有主机名。