springboot 2.3.12.release 整合elasticsearch

最新推荐文章于 2025-02-28 11:31:45 发布

Mr阿斌

最新推荐文章于 2025-02-28 11:31:45 发布

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文章标签： elasticsearch spring boot java

本文链接：https://blog.youkuaiyun.com/mrqi122/article/details/125964105

版权

版本

springboot 2.3.12.release elasticsearch 7.6.2

依赖

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

配置

spring:
  elasticsearch:
    rest:
      uris: 192.168.176.131:9200

mapping

package com.qi.demo1.entity;

import lombok.Data;
import org.springframework.data.annotation.Id;
import org.springframework.data.elasticsearch.annotations.DateFormat;
import org.springframework.data.elasticsearch.annotations.Document;
import org.springframework.data.elasticsearch.annotations.Field;
import org.springframework.data.elasticsearch.annotations.FieldType;
import java.time.LocalDate;
import java.util.Date;
import java.util.List;

/**
 * @author qyb
 * @version 1.0
 * @date 2022/7/12-16:59
 */
@Data
@Document(indexName = "my_es_test")
public class MyEs {
    @Id
    private Long id;
    @Field(type = FieldType.Text)
    private String username;
    @Field(type = FieldType.Integer)
    private Integer age;
    @Field(type = FieldType.Boolean)
    private Boolean sex;
    @Field(type = FieldType.Date,format = DateFormat.date)
    private LocalDate birth;
    @Field(type = FieldType.Nested)
    private List<Son> children;
    @Data
    public static class Son {
        private String username;
        private Integer age;
    }
}

使用

使用ElasticsearchRestTemplate ，elasticesearchTemplate已经过期

  @Autowired
   ElasticsearchRestTemplate restTemplate;
 @Test
    public void testEs(){
        MyEs myEs = new MyEs();
        myEs.setUsername("李四");
        myEs.setSex(false);
        myEs.setAge(18);
        myEs.setBirth(LocalDate.now());
        myEs.setId(1L);

        ArrayList<MyEs.Son> sons = new ArrayList<>();
        MyEs.Son son = new MyEs.Son();
        son.setAge(1);
        son.setUsername("礼物");
        sons.add(son);
        MyEs.Son son1 = new MyEs.Son();
        son1.setAge(2);
        son1.setUsername("理想");
        sons.add(son1);
        myEs.setChildren(sons);
        restTemplate.save(myEs);
    }

查询聚合、分页、排序

@Test
    void test2() {
        TermsAggregationBuilder aggId = AggregationBuilders.terms("aggId").field("id");
        aggId.subAggregation(AggregationBuilders.terms("aggAge").field("age"));
        NativeSearchQuery query = new NativeSearchQueryBuilder()
                .withQuery(QueryBuilders.matchQuery("username", "李四"))
                .addAggregation(aggId)
                .withSort(SortBuilders.fieldSort("id").order(SortOrder.DESC))
                .withHighlightBuilder(new HighlightBuilder().field("username")
                        .preTags("<span style='color:red;'>").postTags("</span>"))
                .withPageable(PageRequest.of(1,5))
                .build();
    
        SearchHits<MyEs> search = restTemplate.search(query, MyEs.class);
        List<MyEs> myess = search.getSearchHits().stream().map(item -> {
            MyEs myEs = item.getContent();
            myEs.setUsername(item.getHighlightField("username").get(0));
            return myEs;
        }).collect(Collectors.toList());

        System.out.println(myess);