ElasticSearch实现忽略大小写模糊查询

1.引入依赖

<dependency>
    <groupId>org.springframework.data</groupId>
    <artifactId>spring-data-elasticsearch</artifactId>
    <version>3.2.0.RELEASE</version>
</dependency>

2.定义

import io.swagger.annotations.apiModel;
import java.io.Serializable;
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;
import org.springframework.data.elasticsearch.annotations.Setting;


@Document(indexName = "GoodsIdx", type = "goodsType")
@Data
@NoArgsConstructor
@AllArgsConstructor
@Setting(settingPath = "elastic-setting.JSON")
public class GoodsIndex implements Serializable {

    @Id
    private Long id;

    @Field(type = FieldType.KeyWord, analyzer = "caseSensitive")
    private String name;

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

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

3.定义配置文件

{
  "analysis": {
    "analyzer": {
      "caseSensitive": {
        "filter": "lowercase",
        "type": "custom",
        "tokenizer": "keyword"
      }
    }
  }
}

4.实现忽略大小写的模糊查询

    @Autowired
    private ElasticsearchRestTemplate elasticsearchRestTemplate;

    @Test
    public void testSearch() {
        String content = "abc";

        Map<Long, List<Goods>> rst = new HashMap<>();
        NativeSearchQueryBuilder queryBuilder = new NativeSearchQueryBuilder();
        BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
        BoolQueryBuilder contentQueryBuilder = QueryBuilders.boolQuery();
        WildcardQueryBuilder groupNameQueryBuilder = QueryBuilders.wildcardQuery("name", "*" + content + "*");
        MatchQueryBuilder briefMatchQueryBuilder = new MatchQueryBuilder("brief", content);
        briefMatchQueryBuilder.operator(Operator.AND);
        MatchQueryBuilder detailMatchQueryBuilder = new MatchQueryBuilder("introduction", content);
        detailMatchQueryBuilder.operator(Operator.AND);
        contentQueryBuilder
                .should(groupNameQueryBuilder)
                .should(briefMatchQueryBuilder)
                .should(detailMatchQueryBuilder)
        ;
        boolQueryBuilder.must(contentQueryBuilder);

        queryBuilder.withQuery(boolQueryBuilder);
        queryBuilder.withPageable(PageRequest.of(0, 10000));

        List<Goods> serviceGroupInfos = elasticsearchRestTemplate
                .queryForList(queryBuilder.build(), Goods.class);
    }

5.搜索语句

{
  "bool": {
    "must": [
      {
        "bool": {
          "should": [
            {
              "wildcard": {
                "groupName": {
                  "wildcard": "*银行*",
                  "boost": 1
                }
              }
            },
            {
              "match": {
                "groupBrief": {
                  "query": "银行",
                  "operator": "AND",
                  "prefix_length": 0,
                  "max_expansions": 50,
                  "fuzzy_transpositions": true,
                  "lenient": false,
                  "zero_terms_query": "NONE",
                  "auto_generate_synonyms_phrase_query": true,
                  "boost": 1
                }
              }
            },
            {
              "match": {
                "groupIntroduction": {
                  "query": "银行",
                  "operator": "AND",
                  "prefix_length": 0,
                  "max_expansions": 50,
                  "fuzzy_transpositions": true,
                  "lenient": false,
                  "zero_terms_query": "NONE",
                  "auto_generate_synonyms_phrase_query": true,
                  "boost": 1
                }
              }
            }
          ],
          "adjust_pure_negative": true,
          "boost": 1
        }
      }
    ],
    "adjust_pure_negative": true,
    "boost": 1
  }
}