SpringData-ElasticSearch入门

本文主要是介绍SpringData-ElasticSearch入门，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

1、创建demo工程

2、application.properties

spring.application.name=es-demo
spring.elasticsearch.uris=http://192.168.74.148:9200
spring.elasticsearch.username=elastic
spring.elasticsearch.password=123456

3、Goods 实体类

package com.atguigu.es.demo.pojo;import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
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;
@Data
@AllArgsConstructor
@NoArgsConstructor
@Document(indexName = "goods")
public class Goods {@Idprivate Long id;@Field(type = FieldType.Text,analyzer = "ik_max_word")private String title;@Field(type = FieldType.Keyword,index = false)private String image;@Field(type = FieldType.Integer)private Integer price;@Field(type = FieldType.Keyword)private String brand;@Field(type = FieldType.Keyword)private String category;
}

4、EsDemoApplicationTests 测试类

package com.atguigu.es.demo;import com.atguigu.es.demo.pojo.Goods;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.data.elasticsearch.client.elc.ElasticsearchTemplate;
import org.springframework.data.elasticsearch.core.IndexOperations;@SpringBootTest
class EsDemoApplicationTests {@Autowiredprivate ElasticsearchTemplate elasticsearchTemplate;@Testvoid contextLoads() {// 获取Goods类对应的索引操作对象IndexOperations indexOps = this.elasticsearchTemplate.indexOps(Goods.class);// 创建索引indexOps.create();// 创建映射indexOps.putMapping();}}

5、pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>3.0.5</version><relativePath/> <!-- lookup parent from repository --></parent><!-- Generated by https://start.springboot.io --><!-- 优质的 spring/boot/data/security/cloud 框架中文文档尽在 => https://springdoc.cn --><groupId>com.atguigu</groupId><artifactId>es-demo</artifactId><version>0.0.1-SNAPSHOT</version><name>es-demo</name><description>es-demo</description><url/><licenses><license/></licenses><developers><developer/></developers><scm><connection/><developerConnection/><tag/><url/></scm><properties><java.version>17</java.version></properties><dependencies><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-data-elasticsearch</artifactId></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId></plugin></plugins></build></project>

6、查看索引库

7、查看单个索引（数据库）

GET /goods

{"goods": {"aliases": {},"mappings": {"properties": {"_class": {"type": "keyword","index": false,"doc_values": false},"brand": {"type": "keyword"},"category": {"type": "keyword"},"image": {"type": "keyword","index": false},"price": {"type": "integer"},"title": {"type": "text","analyzer": "ik_max_word"}}},"settings": {"index": {"routing": {"allocation": {"include": {"_tier_preference": "data_content"}}},"refresh_interval": "1s","number_of_shards": "1","provided_name": "goods","creation_date": "1724723254472","number_of_replicas": "1","uuid": "vBsgfYlfRjKs6uSISXbxtw","version": {"created": "8080299"}}}}
}

8、从goods索引中检索出符合特定搜索条件的文档（或记录）

GET /goods/_search

{"took": 2,"timed_out": false,"_shards": {"total": 1,"successful": 1,"skipped": 0,"failed": 0},"hits": {"total": {"value": 0,"relation": "eq"},"max_score": null,"hits": []}
}

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