elasticsearch---springboot

最新推荐文章于 2023-10-30 15:00:18 发布

kang5789

最新推荐文章于 2023-10-30 15:00:18 发布

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文章标签： elasticsearch

本文链接：https://blog.youkuaiyun.com/kang5789/article/details/116203238

版权

springboot: 2.3.1.RELEASE

elasticsearch官网：https://www.elastic.co/cn/start

elasticsearch下载：https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.6.2-linux-x86_64.tar.gz

ik 中文分词器：https://github.com/medcl/elasticsearch-analysis-ik/releases

pinyin 拼音分词器：https://github.com/medcl/elasticsearch-analysis-pinyin/releases

1、安装：

tar -zxvf elasticsearch-7.6.2-linux-x86_64.tar.gz

#修改配置
vi /data/elasticsearch-7.6.2/conf/

node.name: node-1
network.host: IP

#以es用户启动
groupadd es
useradd es -g es -p es
chown -R es:es /data/elasticsearch-7.6.2
su es
cd /data/elasticsearch-7.6.2/bin
./elasticsearch

访问：IP:9200 看下是否安装成功

安装插件：

cd /data/elasticsearch-7.6.2/plugins
解压下载的 ik、pinyin分词器
后台方式重启es
/data/elasticsearch-7.6.2/bin/elasticsearch  -d

2、新建springboot项目

pom依赖

<dependency>
			<groupId>org.springframework.boot</groupId>
			<artifactId>spring-boot-starter-data-elasticsearch</artifactId>
		</dependency>

application.yml

# 搜索
elasticsearch:
    host: 192.168.211.61
    port: 9200

配置类


import lombok.extern.slf4j.Slf4j;
import org.apache.http.HttpHost;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.impl.nio.client.HttpAsyncClientBuilder;
import org.elasticsearch.client.RestClient;
import org.elasticsearch.client.RestClientBuilder;
import org.elasticsearch.client.RestHighLevelClient;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.elasticsearch.config.AbstractElasticsearchConfiguration;
import org.springframework.data.elasticsearch.core.ElasticsearchRestTemplate;
import org.springframework.data.elasticsearch.repository.config.EnableElasticsearchRepositories;

@Slf4j
@EnableElasticsearchRepositories(basePackages = "xxxxx")
@Configuration
public class ElasticSearchConfig extends AbstractElasticsearchConfiguration {

	@Value("${elasticsearch.host}")
	private String host;
	@Value("${elasticsearch.port}")
	private int port;
	// 使用的协议
	private String schema = "http";
	// 连接超时时间
	private int socketTimeOut = 30000;
	// 连接超时时间
	private int connectTimeOut = 1000;
	// 获取连接的超时时间
	private int connectionRequestTimeOut = 500;
	// 最大连接数
	private int maxConnectPerRoute = 100;
	// 最大路由连接数
	private int maxConnectNum = 100;

	@Override
	public RestHighLevelClient elasticsearchClient() {
		log.info("########## elasticSearchConfig host:{}", host);
		RestClientBuilder builder = RestClient.builder(new HttpHost(host, port, schema));
		// 异步httpclient连接延时配置
		builder.setRequestConfigCallback(new RestClientBuilder.RequestConfigCallback() {
			@Override
			public RequestConfig.Builder customizeRequestConfig(RequestConfig.Builder requestConfigBuilder) {
				requestConfigBuilder.setConnectTimeout(connectTimeOut);
				requestConfigBuilder.setSocketTimeout(socketTimeOut);
				requestConfigBuilder.setConnectionRequestTimeout(connectionRequestTimeOut);
				return requestConfigBuilder;
			}
		});
		// 异步httpclient连接数配置
		builder.setHttpClientConfigCallback(new RestClientBuilder.HttpClientConfigCallback() {
			@Override
			public HttpAsyncClientBuilder customizeHttpClient(HttpAsyncClientBuilder httpClientBuilder) {
				httpClientBuilder.setMaxConnTotal(maxConnectNum);
				httpClientBuilder.setMaxConnPerRoute(maxConnectPerRoute);
				return httpClientBuilder;
			}
		});
		RestHighLevelClient client = new RestHighLevelClient(builder);
		return client;
	}

	@Bean
	public ElasticsearchRestTemplate elasticsearchRestTemplate() {
		return new ElasticsearchRestTemplate(elasticsearchClient());
	}

}

实体类，如果mapping不存在启动会自动创建


import io.swagger.annotations.ApiModel;
import io.swagger.annotations.ApiModelProperty;
import lombok.*;
import org.springframework.data.annotation.Id;
import org.springframework.data.elasticsearch.annotations.*;

import java.math.BigDecimal;
import java.time.LocalDate;

@Data
@AllArgsConstructor
@NoArgsConstructor
@Builder
@ToString
@Document(indexName = "goods_spu", shards = 3, replicas = 1)
@ApiModel(value = "搜索实体--商品spu")
public class EsGoodsSpu {

	@Id
	@ApiModelProperty(value = "主键")
	private Long spuId;
	/**
	 * SPU编号，分发的商品编号相同
	 */
	@Field(type = FieldType.Keyword)
	@ApiModelProperty(value = "SPU编号，分发的商品编号相同")
	private String spuCode;
	/**
	 * 商家id
	 */
	@ApiModelProperty(value = "商家id")
	private Long merchantId;
	/**
	 * 商家名称
	 */
	@Field(type = FieldType.Keyword, index = false)
	@ApiModelProperty(value = "商家名称")
	private String merchantName;
	/**
	 * 商品名称
	 */
	@MultiField(mainField = @Field(type = FieldType.Text, analyzer = "ik_max_word"),
			otherFields = @InnerField(suffix = "pinyin", type = FieldType.Text, analyzer = "pinyin", searchAnalyzer = "pinyin"))
	@ApiModelProperty(value = "商品名称")
	private String spuName;
	/**
	 * 副标题
	 */
	@Field(type = FieldType.Text, analyzer = "ik_max_word", searchAnalyzer = "ik_max_word")
	@ApiModelProperty(value = "副标题")
	private String subTitle;
	/**
	 * 定位信息
	 */
	@GeoPointField
	@ApiModelProperty(value = "定位完整坐标：精度,维度")
	private String position;
	/**
	 * 创建时间
	 */
	@Field(type = FieldType.Date, format = DateFormat.custom, pattern = "uuuu-MM-dd HH:mm:ss")
	@ApiModelProperty(value = "创建时间")
	private LocalDate createTime;

}

dao



import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;

public interface EsGoodsSpuRepository extends ElasticsearchRepository<EsGoodsSpu, Long> {

}

service


import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.util.StrUtil;
import cn.jkinvest.mp.goods.mapper.EsGoodsSpuRepository;
import cn.jkinvest.mp.goods.pojo.search.EsGoodsSpu;
import cn.jkinvest.mp.goods.pojo.search.SearchParam;
import cn.jkinvest.mp.goods.service.SearchService;
import org.elasticsearch.index.query.BoolQueryBuilder;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.search.sort.SortBuilders;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.elasticsearch.core.query.NativeSearchQueryBuilder;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.List;

/**
 * @Description: 搜索
 * @Author zhangdongkang
 * @Date 2021/4/25
 */
@Service
public class SearchServiceImpl implements SearchService {

	@Resource
	private EsGoodsSpuRepository esGoodsSpuRepository;

	/**
	 * @Description: 搜索
	 * @Author zhangdongkang
	 * @Date 2021/4/25
	 */
	@Override
	public Page<EsGoodsSpu> search(SearchParam searchParam) {
		//分页
		Integer pageNumber = searchParam.getPageNumber();
		Integer pageSize = searchParam.getPageSize();
		if (pageNumber == null) {
			pageNumber = 1;
		}
		pageNumber = pageNumber - 1;
		if (pageSize == null) {
			pageSize = 10;
		}

		BoolQueryBuilder queryBuilder = QueryBuilders.boolQuery();
		PageRequest pageRequest = PageRequest.of(pageNumber, pageSize);

		//关键词匹配
		String keywords = searchParam.getKeywords();
		if (StrUtil.isNotBlank(keywords)) {
			queryBuilder.must(
					QueryBuilders.boolQuery()
							// spuName IK分词匹配
							.should(QueryBuilders.matchQuery("spuName", keywords).boost(2))
							// spuName pinyin分词匹配
							.should(QueryBuilders.matchQuery("spuName.pinyin", keywords).boost(2))
							// 副标题 IK分词匹配
							.should(QueryBuilders.matchQuery("subTitle", keywords).boost(1))
			);

		}

		//商家id
		Long merchantId = searchParam.getMerchantId();
		if (merchantId != null) {
			queryBuilder.must(QueryBuilders.termQuery("merchantId", merchantId));
		}
		
		NativeSearchQueryBuilder nativeSearchQueryBuilder = new NativeSearchQueryBuilder()
				.withQuery(queryBuilder)
				.withPageable(pageRequest)
				.withSort(SortBuilders.scoreSort());

		Page<EsGoodsSpu> page = esGoodsSpuRepository.search(nativeSearchQueryBuilder.build());
		return page;
	}
}