哪个网站可以做免费宣传,wordpress面包屑导航代码,做电商要关注哪些网站,做国外网站汇款用途是什么文章目录 创建域1.创建域2.输入配置部署选项数据节点网络精细访问控制访问策略 获取域端点数据如何插入到OpenSearch ServiceJava连接OpenSearch Servicespring-data-opensearchelasticsearch-rest-high-level-clientopensearch-rest-clientopensearch-java 因为是开发测试使用… 文章目录 创建域1.创建域2.输入配置部署选项数据节点网络精细访问控制访问策略 获取域端点数据如何插入到OpenSearch ServiceJava连接OpenSearch Servicespring-data-opensearchelasticsearch-rest-high-level-clientopensearch-rest-clientopensearch-java 因为是开发测试使用所以选的都是低配单机便宜的配置。 地址https://aws.amazon.com/cn/opensearch-service/
价格https://aws.amazon.com/cn/opensearch-service/pricing/
实例小时数 所需的存储量 传入和传出 Amazon OpenSearch Service 的数据
文档https://docs.aws.amazon.com/zh_cn/opensearch-service/
创建域
一般在15-30分钟内创建一个OpenSearch集群所以请尿完尿再来搞别憋坏了。
1.创建域 2.输入配置 域名后面用java等客户端连接时会在URL中显示。 域创建方法请选择标准创建。 轻松创建快速创建 OpenSearch 域以实现高可用性 含备用节点的多可用区我们要自定义标准创建便宜点。可以理解为一个产线的标准套餐。标准创建就是自选套餐。 模板选择开发/测试。 部署选项选择不含备用节点的域主打的就是便宜能用就行。可用区选择一个可用区。版本请选择最新版本。
部署选项 数据节点
实例类型默认是内存优化 - r6g.large.search2C16G 价格为USD 0.167/H下面列几个便宜的。 t3.small.search 2C2G USD 0.036 自己用来个最便宜的又不是不能用。t3.medium.search 2C4G USD 0.073 节点数1个就行。存储大小40G就行。 忽略其他冷热数据存储专用主节点快照配置以及自定义终端节点部分。 网络
网络选择 Public access公有访问权限 开发测试环境选择公共访问权限生成用VPC访问 精细访问控制
启用细粒度访问控制复选框。选择创建主用户输入用户名和密码用户名和密码很关键后面访问dashboard和远程客户端连接都要。 忽略 SAML 身份验证和 Amazon Cognito 身份验证 访问策略
选择 Only use fine-grained access control仅使用精细访问控制。
忽略其余设置然后选择 Create创建。新域初始化过程通常需要 15-30 分钟但可能需要更长的时间具体取决于配置。 获取域端点
点击创建后通常需要 15-30 分钟然后从控制台 - 域 - 一般信息 获取域端点。 这里给了IPV6和IPV4的dashboard地址和域端点地址。 数据如何插入到OpenSearch Service
对于大规模数据我们建议使用 Amazon Kinesis Data Firehose这是一项完全托管的服务可以自动扩展以匹配您的数据吞吐量并且不需要进行持续的管理。它还可以在加载数据前对其进行转换、批处理和压缩。Amazon OpenSearch Service 支持与 Logstash 的集成。您可以将 Amazon OpenSearch Service 域配置为数据存储用于存储所有来自 Logstash 的日志。可以使用索引 API 和批量 API 等原生 Elasticsearch7.10 及更低版本或 OpenSearch API 将数据加载到域中。
Java连接OpenSearch Service
当使用 Java 连接 OpenSearch 时有几个选择包括 Spring Data Elasticsearch/opensearch、原生 Elasticsearch 和 OpenSearch 客户端。下面是每种方式的简要介绍
spring-data-xxx原生ElasticsearchOpenSearch 建议基本的CRUD用 spring-data-xxx 复杂的查询用低级client如opensearch-java 或 RestClient lowLevelClient highLevelClient.getLowLevelClient(); lowLevelClient . lowLevelClient.performRequest() 验证分为用户名和密码进行身份验证和AWS访问密钥Access Key和Secret Key 我们当前选的精细控制用的是用户名密码验证后面生产建议改为IAM验证。 spring-data-opensearch Githubhttps://github.com/opensearch-project/spring-data-opensearch 官方示例https://github.com/opensearch-project/spring-data-opensearch/tree/main/spring-data-opensearch-examples Spring Boot 3.x 1.添加依赖。
dependencygroupIdorg.opensearch.client/groupIdartifactIdspring-data-opensearch-starter/artifactIdversion1.3.0/version
/dependency2.启动类去除ElasticsearchDataAutoConfiguration自动配置。
SpringBootApplication(exclude {ElasticsearchDataAutoConfiguration.class})
public class OpenSearchDemoApplication {public static void main(String[] args) {SpringApplication.run(OpenSearchDemoApplication.class, args);}
}3.application.yml增加配置
opensearch:uris: https://localhost:9200username: adminpassword: adminspring:jackson:serialization:INDENT_OUTPUT: true4.新增model
import java.math.BigDecimal;
import org.springframework.data.annotation.Id;
import org.springframework.data.elasticsearch.annotations.Document;
import org.springframework.data.elasticsearch.annotations.Field;
import org.springframework.data.elasticsearch.annotations.FieldType;Document(indexName marketplace)
public class Product {Idprivate String id;Field(type FieldType.Text, name name)private String name;Field(type FieldType.Double, name price)private BigDecimal price;Field(type FieldType.Integer, name quantity)private Integer quantity;Field(type FieldType.Text, name description)private String description;Field(type FieldType.Keyword, name vendor)private String vendor;5.新增Repository
import java.math.BigDecimal;
import java.util.List;
import org.opensearch.data.example.model.Product;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;
import org.springframework.stereotype.Repository;Repository
public interface MarketplaceRepository extends ElasticsearchRepositoryProduct, String {ListProduct findByNameLikeAndPriceGreaterThan(String name, BigDecimal price);
}6.新增service
Service
public class MarketplaceService {private final MarketplaceRepository repository;public MyService(MarketplaceRepository repository) {this.repository repository;}public void doWork() {repository.deleteAll();Product product new Product();product.setName(xxx);product.setxxx(xxx);repository.save(product);ListProduct results repository.findByNameLikeAndPriceGreaterThan(Gierke,xx);}
}我们还可以通过RestHighLevelClient获得lowLevelRest()客户端。 AutowiredRestHighLevelClient highLevelClient;RestClient lowLevelClient highLevelClient.getLowLevelClient();IndexRequest request new IndexRequest(spring-data).id(randomID()).source(singletonMap(feature, high-level-rest-client)).setRefreshPolicy(IMMEDIATE);
IndexResponse response highLevelClient.index(request,RequestOptions.DEFAULT);// 构建请求Request request new Request(GET, /your-index-name/_search);// 添加请求参数如果需要的话request.addParameter(q, field:value);// 执行请求Response response lowLevelClient.performRequest(request);// 处理响应int statusCode response.getStatusLine().getStatusCode();String responseBody EntityUtils.toString(response.getEntity());System.out.println(Status Code: statusCode);System.out.println(Response Body: responseBody);elasticsearch-rest-high-level-client
1.添加依赖
dependenciesdependencygroupIdorg.elasticsearch.client/groupIdartifactIdelasticsearch-rest-high-level-client/artifactIdversion7.10.2/version !-- 替换为你使用的OpenSearch版本 --/dependency
/dependencies2.示例代码
import org.elasticsearch.action.index.IndexRequest;
import org.elasticsearch.action.index.IndexResponse;
import org.elasticsearch.action.search.SearchRequest;
import org.elasticsearch.action.search.SearchResponse;
import org.elasticsearch.client.RequestOptions;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestHighLevelClient;
import org.elasticsearch.common.xcontent.XContentType;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.search.builder.SearchSourceBuilder;import java.io.IOException;
import java.util.HashMap;
import java.util.Map;public class OpenSearchExample {public static void main(String[] args) {// OpenSearch连接配置String hostname your_opensearch_host; // 替换为你的OpenSearch服务器主机名或IP地址int port 9200; // 替换为你的OpenSearch服务器端口String scheme https; // 如果使用HTTPS否则使用httpString username laker;String password lakerpwd;try (RestHighLevelClient client new RestHighLevelClient(RestClient.builder(hostname).setPort(port).setScheme(scheme).setHttpClientConfigCallback(httpClientBuilder -httpClientBuilder.setDefaultCredentialsProvider(() -new org.apache.http.auth.UsernamePasswordCredentials(username, password))))) {// 上传数据MapString, Object jsonMap new HashMap();jsonMap.put(field1, value1);jsonMap.put(field2, value2);IndexRequest indexRequest new IndexRequest(your_index).id(your_document_id) // 替换为文档的ID.source(jsonMap, XContentType.JSON);IndexResponse indexResponse client.index(indexRequest, RequestOptions.DEFAULT);System.out.println(Index created with ID: indexResponse.getId());// 查询数据SearchRequest searchRequest new SearchRequest(your_index);SearchSourceBuilder searchSourceBuilder new SearchSourceBuilder();searchSourceBuilder.query(QueryBuilders.matchAllQuery());searchRequest.source(searchSourceBuilder);SearchResponse searchResponse client.search(searchRequest, RequestOptions.DEFAULT);// 处理查询结果System.out.println(Search hits: searchResponse.getHits().getTotalHits());} catch (IOException e) {e.printStackTrace();}}
}
opensearch-rest-client
文档https://opensearch.org/docs/latest/clients/java-rest-high-level/
1.添加依赖 dependencygroupIdorg.opensearch.client/groupIdartifactIdopensearch-rest-high-level-client/artifactIdversion2.11.1/version/dependency2.示例代码
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.opensearch.action.admin.indices.delete.DeleteIndexRequest;
import org.opensearch.action.delete.DeleteRequest;
import org.opensearch.action.delete.DeleteResponse;
import org.opensearch.action.get.GetRequest;
import org.opensearch.action.get.GetResponse;
import org.opensearch.action.index.IndexRequest;
import org.opensearch.action.index.IndexResponse;
import org.opensearch.action.support.master.AcknowledgedResponse;
import org.opensearch.client.RequestOptions;
import org.opensearch.client.RestClient;
import org.opensearch.client.RestClientBuilder;
import org.opensearch.client.RestHighLevelClient;
import org.opensearch.client.indices.CreateIndexRequest;
import org.opensearch.client.indices.CreateIndexResponse;
import org.opensearch.common.settings.Settings;import java.io.IOException;
import java.util.HashMap;public class RESTClientSample {public static void main(String[] args) throws IOException {final CredentialsProvider credentialsProvider new BasicCredentialsProvider();credentialsProvider.setCredentials(AuthScope.ANY,new UsernamePasswordCredentials(lakertest, xxxx));//Create a client.RestClientBuilder builder RestClient.builder(new HttpHost(search-laker-search-xxxx.us-east-2.es.amazonaws.com, 443, https)).setHttpClientConfigCallback(httpClientBuilder - httpClientBuilder.setDefaultCredentialsProvider(credentialsProvider));RestHighLevelClient client new RestHighLevelClient(builder);//Create a non-default index with custom settings and mappings.CreateIndexRequest createIndexRequest new CreateIndexRequest(custom-index);createIndexRequest.settings(Settings.builder() //Specify in the settings how many shards you want in the index..put(index.number_of_shards, 4).put(index.number_of_replicas, 3));//Create a set of maps for the indexs mappings.HashMapString, String typeMapping new HashMapString,String();typeMapping.put(type, integer);HashMapString, Object ageMapping new HashMapString, Object();ageMapping.put(age, typeMapping);HashMapString, Object mapping new HashMapString, Object();mapping.put(properties, ageMapping);createIndexRequest.mapping(mapping);CreateIndexResponse createIndexResponse client.indices().create(createIndexRequest, RequestOptions.DEFAULT);//Adding data to the index.IndexRequest request new IndexRequest(custom-index); //Add a document to the custom-index we created.request.id(1); //Assign an ID to the document.HashMapString, String stringMapping new HashMapString, String();stringMapping.put(message:, Testing Java REST client);request.source(stringMapping); //Place your content into the indexs source.IndexResponse indexResponse client.index(request, RequestOptions.DEFAULT);// 查询GetRequest getRequest new GetRequest(custom-index, 1);GetResponse response client.get(getRequest, RequestOptions.DEFAULT);System.out.println(response.getSourceAsString());// 删除文档DeleteRequest deleteDocumentRequest new DeleteRequest(custom-index, 1); //Index name followed by the ID.DeleteResponse deleteResponse client.delete(deleteDocumentRequest, RequestOptions.DEFAULT);// 删除索引DeleteIndexRequest deleteIndexRequest new DeleteIndexRequest(custom-index); //Index name.AcknowledgedResponse deleteIndexResponse client.indices().delete(deleteIndexRequest, RequestOptions.DEFAULT);client.close();}
}opensearch-java
文档https://opensearch.org/docs/latest/clients/java/示例代码https://github.com/opensearch-project/opensearch-java/tree/main/samples 里面很详细包含knn部分。
dependencygroupIdorg.opensearch.client/groupIdartifactIdopensearch-java/artifactIdversion2.8.1/version
/dependencyData
public class IndexData {private String title;private String text;public IndexData() {}public IndexData(String title, String text) {this.title title;this.text text;}
}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.opensearch.client.RestClient;
import org.opensearch.client.json.jackson.JacksonJsonpMapper;
import org.opensearch.client.opensearch.OpenSearchClient;
import org.opensearch.client.opensearch._types.mapping.IntegerNumberProperty;
import org.opensearch.client.opensearch._types.mapping.Property;
import org.opensearch.client.opensearch._types.mapping.TypeMapping;
import org.opensearch.client.opensearch.core.IndexRequest;
import org.opensearch.client.opensearch.core.SearchResponse;
import org.opensearch.client.opensearch.indices.CreateIndexRequest;
import org.opensearch.client.opensearch.indices.DeleteIndexRequest;
import org.opensearch.client.opensearch.indices.IndexSettings;
import org.opensearch.client.transport.OpenSearchTransport;
import org.opensearch.client.transport.rest_client.RestClientTransport;import java.io.IOException;public class OpenSearchClientExample {public static void main(String[] args) throws IOException {final CredentialsProvider credentialsProvider new BasicCredentialsProvider();credentialsProvider.setCredentials(AuthScope.ANY,new UsernamePasswordCredentials(admin, admin));// 私有 opensearchRestClient restClient RestClient.builder(new HttpHost(localhost, 9200, https)).setHttpClientConfigCallback(httpClientBuilder - httpClientBuilder.setDefaultCredentialsProvider(credentialsProvider)).build();OpenSearchTransport transport new RestClientTransport(restClient, new JacksonJsonpMapper());OpenSearchClient client new OpenSearchClient(transport);//Create the indexString indexName sample-index;//Add some settings to the indexIndexSettings settings new IndexSettings.Builder().numberOfShards(2).numberOfReplicas(1).build();TypeMapping mapping new TypeMapping.Builder().properties(age,new Property.Builder().integer(new IntegerNumberProperty.Builder().build()).build()).build();CreateIndexRequest createIndexRequest new CreateIndexRequest.Builder().index(indexName).settings(settings).mappings(mapping).build();client.indices().create(createIndexRequest);//Index some dataIndexData indexData new IndexData(Document 1, Text for document 1);IndexRequestIndexData indexRequest new IndexRequest.BuilderIndexData().index(indexName).id(1).document(indexData).build();client.index(indexRequest);//Search for the documentSearchResponseIndexData searchResponse client.search(s - s.index(indexName), IndexData.class);for (int i 0; i searchResponse.hits().hits().size(); i) {System.out.println(searchResponse.hits().hits().get(i).source());}//Delete the documentclient.delete(b - b.index(indexName).id(1));// Delete the indexDeleteIndexRequest deleteIndexRequest new DeleteIndexRequest.Builder().index(indexName).build();client.indices().delete(deleteIndexRequest);try {if (restClient ! null) {restClient.close();}} catch (IOException e) {System.out.println(e.toString());}}
}
