快速开始 #
本页指导您完成Java客户端的安装过程,展示了如何实例化客户端,以及如何使用它执行基本的 Easysearch 操作。
安装 #
easysearch-client 已经发布到 Maven 中央仓库:https://repo1.maven.org/maven2/
安装需要 jdk11 或以上版本
在Maven项目中安装 #
在您项目的 pom 文件的 dependencies 区域添加以下依赖
<dependencies>
<dependency>
<groupId>com.infinilabs</groupId>
<artifactId>easysearch-client</artifactId>
<version>1.0.1</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5.10</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpcore-nio</artifactId>
<version>4.4.12</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpasyncclient</artifactId>
<version>4.1.4</version>
</dependency>
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
<version>2.10.4</version>
</dependency>
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-core</artifactId>
<version>8.11.2</version>
<scope>compile</scope>
<exclusions>
<exclusion>
<artifactId>*</artifactId>
<groupId>*</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-analyzers-common</artifactId>
<version>8.11.2</version>
<scope>compile</scope>
<exclusions>
<exclusion>
<artifactId>*</artifactId>
<groupId>*</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-backward-codecs</artifactId>
<version>8.11.2</version>
<scope>compile</scope>
<exclusions>
<exclusion>
<artifactId>*</artifactId>
<groupId>*</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-grouping</artifactId>
<version>8.11.2</version>
<scope>compile</scope>
<exclusions>
<exclusion>
<artifactId>*</artifactId>
<groupId>*</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-highlighter</artifactId>
<version>8.11.2</version>
<scope>compile</scope>
<exclusions>
<exclusion>
<artifactId>*</artifactId>
<groupId>*</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-join</artifactId>
<version>8.11.2</version>
<scope>compile</scope>
<exclusions>
<exclusion>
<artifactId>*</artifactId>
<groupId>*</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-memory</artifactId>
<version>8.11.2</version>
<scope>compile</scope>
<exclusions>
<exclusion>
<artifactId>*</artifactId>
<groupId>*</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-misc</artifactId>
<version>8.11.2</version>
<scope>compile</scope>
<exclusions>
<exclusion>
<artifactId>*</artifactId>
<groupId>*</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-queries</artifactId>
<version>8.11.2</version>
<scope>compile</scope>
<exclusions>
<exclusion>
<artifactId>*</artifactId>
<groupId>*</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-queryparser</artifactId>
<version>8.11.2</version>
<scope>compile</scope>
<exclusions>
<exclusion>
<artifactId>*</artifactId>
<groupId>*</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-sandbox</artifactId>
<version>8.11.2</version>
<scope>compile</scope>
<exclusions>
<exclusion>
<artifactId>*</artifactId>
<groupId>*</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-spatial3d</artifactId>
<version>8.11.2</version>
<scope>compile</scope>
<exclusions>
<exclusion>
<artifactId>*</artifactId>
<groupId>*</groupId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.apache.lucene</groupId>
<artifactId>lucene-suggest</artifactId>
<version>8.11.2</version>
<scope>compile</scope>
<exclusions>
<exclusion>
<artifactId>*</artifactId>
<groupId>*</groupId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
在 gradle 项目中安装 #
在您项目的 build.gradle 文件的 dependencies 区域添加以下依赖
dependencies {
implementation 'com.infinilabs:easysearch-client:1.0.1'
implementation "org.apache.logging.log4j:log4j-api:2.19.0"
implementation "org.apache.logging.log4j:log4j-core:2.19.0"
implementation 'org.apache.httpcomponents:httpclient:4.5.10'
implementation 'org.apache.httpcomponents:httpcore-nio:4.4.12'
implementation 'org.apache.httpcomponents:httpasyncclient:4.1.4'
implementation 'joda-time:joda-time:2.10.4'
implementation ('org.apache.lucene:lucene-core:8.11.2') {
exclude group: '*', module: '*'
}
implementation ('org.apache.lucene:lucene-analyzers-common:8.11.2') {
exclude group: '*', module: '*'
}
implementation ('org.apache.lucene:lucene-backward-codecs:8.11.2') {
exclude group: '*', module: '*'
}
implementation ('org.apache.lucene:lucene-grouping:8.11.2') {
exclude group: '*', module: '*'
}
implementation ('org.apache.lucene:lucene-highlighter:8.11.2') {
exclude group: '*', module: '*'
}
implementation ('org.apache.lucene:lucene-join:8.11.2') {
exclude group: '*', module: '*'
}
implementation ('org.apache.lucene:lucene-memory:8.11.2') {
exclude group: '*', module: '*'
}
implementation ('org.apache.lucene:lucene-misc:8.11.2') {
exclude group: '*', module: '*'
}
implementation ('org.apache.lucene:lucene-queries:8.11.2') {
exclude group: '*', module: '*'
}
implementation ('org.apache.lucene:lucene-queryparser:8.11.2') {
exclude group: '*', module: '*'
}
implementation ('org.apache.lucene:lucene-sandbox:8.11.2') {
exclude group: '*', module: '*'
}
implementation ('org.apache.lucene:lucene-spatial3d:8.11.2') {
exclude group: '*', module: '*'
}
implementation ('org.apache.lucene:lucene-suggest:8.11.2') {
exclude group: '*', module: '*'
}
......
}
初始化客户端 #
假设您本地启动了 Easysearch 服务,配置 security.enabled:true,用户名 admin,密码 admin。
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.conn.ssl.NoopHostnameVerifier;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.nio.client.HttpAsyncClientBuilder;
import org.apache.http.nio.conn.ssl.SSLIOSessionStrategy;
import org.apache.http.ssl.SSLContextBuilder;
import org.easysearch.action.admin.indices.delete.DeleteIndexRequest;
import org.easysearch.action.bulk.BulkRequest;
import org.easysearch.action.bulk.BulkResponse;
import org.easysearch.action.delete.DeleteRequest;
import org.easysearch.action.delete.DeleteResponse;
import org.easysearch.action.get.GetRequest;
import org.easysearch.action.get.GetResponse;
import org.easysearch.action.index.IndexRequest;
import org.easysearch.action.search.SearchRequest;
import org.easysearch.action.search.SearchResponse;
import org.easysearch.action.support.master.AcknowledgedResponse;
import org.easysearch.client.RequestOptions;
import org.easysearch.client.RestClient;
import org.easysearch.client.RestHighLevelClient;
import org.easysearch.client.indices.CreateIndexRequest;
import org.easysearch.client.security.GetUsersRequest;
import org.easysearch.client.security.GetUsersResponse;
import org.easysearch.common.Strings;
import org.easysearch.common.settings.Settings;
import org.easysearch.common.xcontent.XContentType;
import org.easysearch.index.query.QueryBuilders;
import org.easysearch.search.builder.SearchSourceBuilder;
public class EasearchSearchConfig {
String userName = "admin";
String password = "admin";
public RestHighLevelClient initEasysearchClient(String user, String password) throws Exception {
try {
HttpHost[] httpHostArray = new HttpHost[1];
httpHostArray[0] = new HttpHost("localhost", 9200, "https");
final CredentialsProvider credentialsProvider = new BasicCredentialsProvider();
credentialsProvider.setCredentials(AuthScope.ANY, new UsernamePasswordCredentials(userName, password));
SSLContext sslContext = new SSLContextBuilder().loadTrustMaterial(null, (TrustStrategy) (chain, authType) -> true).build();
SSLIOSessionStrategy sessionStrategy = new SSLIOSessionStrategy(sslContext, NoopHostnameVerifier.INSTANCE);
return new RestHighLevelClient(RestClient.builder(httpHostArray).setHttpClientConfigCallback((HttpAsyncClientBuilder httpAsyncClientBuilder) -> {
httpAsyncClientBuilder.setDefaultCredentialsProvider(credentialsProvider);
httpAsyncClientBuilder.disableAuthCaching();
httpAsyncClientBuilder.setSSLStrategy(sessionStrategy);
return httpAsyncClientBuilder;
}));
} catch (Exception e) {
throw new RuntimeException("Failed to create Easysearch client", e);
}
}
......
}
使用示例 #
RestHighLevelClient client = initEasysearchClient(userName, password);
CreateIndexRequest createIndexRequest = new CreateIndexRequest("test-index");
createIndexRequest.settings(Settings.builder()
.put("index.number_of_shards", 1)
.put("index.number_of_replicas", 1)
);
//Create index
client.indices().create(createIndexRequest, RequestOptions.DEFAULT);
// Bulk
BulkRequest bulkRequest = new BulkRequest();
for (int i = 0; i < 10; i++) {
IndexRequest indexRequest = new IndexRequest("test-index") // 替换为您的索引名称
.id(Integer.toString(i)) // 文档ID
.source("{\"field1\":\"value" + i + "\"}", XContentType.JSON);
bulkRequest.add(indexRequest);
}
BulkResponse bulkResponse = client.bulk(bulkRequest, RequestOptions.DEFAULT);
if (bulkResponse.hasFailures()) {
System.out.println("Bulk operation had failures: " + bulkResponse.buildFailureMessage());
} else {
System.out.println("Bulk operation completed successfully");
}
// GET
GetRequest getRequest = new GetRequest("test-index", "1");
GetResponse response = client.get(getRequest, RequestOptions.DEFAULT);
System.out.println(response.getSourceAsString());
// Delete doc
DeleteRequest deleteDocumentRequest = new DeleteRequest("test-index", "1");
DeleteResponse deleteResponse = client.delete(deleteDocumentRequest, RequestOptions.DEFAULT);
System.out.println(Strings.toString(deleteResponse));
//Delete the index
DeleteIndexRequest deleteIndexRequest = new DeleteIndexRequest("test-index"); //Index name.
AcknowledgedResponse deleteIndexResponse = client.indices().delete(deleteIndexRequest, RequestOptions.DEFAULT);
System.out.println(Strings.toString(deleteIndexResponse));
client.close();