springboot整合elasticsearch

    4.0.0
    
        org.springframework.boot
        spring-boot-starter-parent
        2.6.1
         
    
    com.mujl
    springelasticsearch
    0.0.1-SNAPSHOT
    springelasticsearch
    Demo project for Spring Boot
    
        1.8
    
    
        
            org.projectlombok
            lombok
        
        
            org.springframework.boot
            spring-boot-starter-data-elasticsearch
        

        
            org.springframework.boot
            spring-boot-starter-test
            test
        
    

    
        
            
                org.springframework.boot
                spring-boot-maven-plugin
            
        
    

spring.elasticsearch.uris=http://101.43.8.200:9200,http://47.104.165.141:9200,http://82.156.163.91:9200

package com.mujl.springelasticsearch.bean;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import lombok.ToString;
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;

import java.io.Serializable;
import java.math.BigDecimal;

@Data
@NoArgsConstructor
@AllArgsConstructor
@ToString
@document(indexName = "shop",shards=5,replicas = 1,createIndex = false)
public class Goods implements Serializable {
    
    @Id
    private Integer goodsId;

    
    @Field(type = FieldType.Text,analyzer = "ik_max_word")
    private String goodsName;

    
    @Field(type = FieldType.Double)
    private BigDecimal marketPrice;

    
    @Field(type=FieldType.Keyword)
    private String originalImg;

    private static final long serialVersionUID = 1L;
}

package com.mujl.springelasticsearch.dao;

import com.mujl.springelasticsearch.bean.Goods;
import org.springframework.data.elasticsearch.annotations.Query;
import org.springframework.data.elasticsearch.repository.ElasticsearchRepository;

import java.util.List;

public interface GoodsRepository extends ElasticsearchRepository {

    
    List findByGoodsName(String goodsName);

    
    @Query("{"match":{"goodsId":{"query":"?0"}}}")
    Goods findByIdValue(Integer id);
}

package com.mujl.springelasticsearch;

import com.mujl.springelasticsearch.bean.Goods;
import com.mujl.springelasticsearch.dao.GoodsRepository;
import lombok.val;
import org.elasticsearch.index.query.QueryBuilder;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.search.fetch.subphase.highlight.HighlightBuilder;
import org.elasticsearch.search.sort.SortBuilders;
import org.elasticsearch.search.sort.SortOrder;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Sort;
import org.springframework.data.elasticsearch.core.ElasticsearchRestTemplate;
import org.springframework.data.elasticsearch.core.IndexOperations;
import org.springframework.data.elasticsearch.core.SearchHit;
import org.springframework.data.elasticsearch.core.SearchHits;
import org.springframework.data.elasticsearch.core.document.document;
import org.springframework.data.elasticsearch.core.mapping.IndexCoordinates;
import org.springframework.data.elasticsearch.core.query.NativeSearchQuery;
import org.springframework.data.elasticsearch.core.query.NativeSearchQueryBuilder;

import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

@SpringBootTest
class SpringelasticsearchApplicationTests {

    @Autowired
    private ElasticsearchRestTemplate elasticsearchRestTemplate;

    @Autowired
    private GoodsRepository goodsRepository;

    @Test
    void contextLoads() {
    }

    @Test
    public void testIndex(){
//        //获取索引对象
        IndexOperations indexOperations = elasticsearchRestTemplate.indexOps(Goods.class);
//        //创建索引
//        indexOperations.create();
//        //获取映射,根据Goods类中的@Field注解，生成映射。
//        document mapping = indexOperations.createMapping(Goods.class);
//        //把映射放入索引中去
//        indexOperations.putMapping(mapping);
//
//        //判断索引是否存在
//        Boolean exists = indexOperations.exists();
//        System.out.println(exists);
        //删除索引
        indexOperations.delete();
    }

    
    @Test
    public void testRepository(){
        //添加
//        List list = new ArrayList<>();
//        list.add(new Goods(150,"测试手机1",new BigDecimal("200"),"png"));
//        list.add(new Goods(151,"测试手机2",new BigDecimal("200"),"png"));
//        goodsRepository.saveAll(list);

        //根据商品名称查询商品
//        List goodsList = goodsRepository.findByGoodsName("%测试%");
//        goodsList.forEach(System.out::println);

        Goods goods = goodsRepository.findByIdValue(150);
        System.out.println(goods);
    }

    
    @Test
    public void testCUD(){
        List list = new ArrayList<>();
        //添加/更新（id存在就是更新，id不存在就是添加）
        list.add(new Goods(158,"测试手机9",new BigDecimal("200"),"png"));
        list.add(new Goods(159,"测试手机10",new BigDecimal("200"),"png"));
        elasticsearchRestTemplate.save(list);

        //删除
//        elasticsearchRestTemplate.delete("150", IndexCoordinates.of("shop"));

        //删除查询出来的结果
//        NativeSearchQuery query = new NativeSearchQueryBuilder().withQuery(QueryBuilders.matchQuery("goodsName", "测试")).build();
//        elasticsearchRestTemplate.delete(query,Goods.class,IndexCoordinates.of("shop"));
    }

    
    @Test
    public void testSearch(){
        NativeSearchQuery query = new NativeSearchQueryBuilder().withQuery(QueryBuilders.matchQuery("goodsName", "测试")).build();
        SearchHits search = elasticsearchRestTemplate.search(query,Goods.class);
        search.getSearchHits().forEach(System.out::println);
    }

    
    @Test
    public void testSearchHigh(){
        NativeSearchQuery query = new NativeSearchQueryBuilder()
                .withQuery(QueryBuilders.multiMatchQuery("测试","goodsName"))
                //分页
//                .withPageable(PageRequest.of(0,5))
                //分页和排序写在一起
                .withPageable(PageRequest.of(0,5,Sort.Direction.DESC,"goodsId","marketPrice"))
                //排序，分数正序
//                .withSort(SortBuilders.scoreSort().order(SortOrder.ASC))
//                .withSort(SortBuilders.fieldSort("goodsId").order(SortOrder.ASC))
                //高亮，默认斜体
//                .withHighlightFields(new HighlightBuilder.Field("goodsName"))
                //指定样式的高亮
                .withHighlightBuilder(new HighlightBuilder().field("goodsName").preTags("").postTags(""))
                .build();
        SearchHits searchHits = elasticsearchRestTemplate.search(query,Goods.class);
        for(SearchHit searchHit:searchHits){
            float score = searchHit.getScore();
            String id = searchHit.getId();
            List