elasticsearch使用wildcard多字段模糊搜索

elasticsearch使用wildcard多字段模糊搜索匹配0个或多个字符?匹配任意字符*匹配0个或多个字符1.wildcard 单条件搜索index 索引type 类型。GET /index/type/_search{"size": 20,"from": 0,"query": {"bool": {"should": [{"wildcard": {"name": "*java*}}]}}

chengxuxuan

5580人浏览 · 2021-04-29 16:18:45

chengxuxuan · 2021-04-29 16:18:45 发布

elasticsearch使用wildcard多字段模糊搜索

匹配0个或多个字符

?	匹配任意字符
*	匹配0个或多个字符

1.wildcard 单条件搜索
index 索引 type 类型。

GET /index/type/_search
{
	"size": 20,
	"from": 0,
	"query": {
		"bool": {
			"should": [{
				"wildcard": {
					"name": "*java*
				}
			}]
		}
	}
}

搜索名字中含有java文档（name中只要包含java即可）

2.wildcard 多条件搜索

GET /index/type/_search
{
	"size": 20,
	"from": 0,
	"query": {
		"bool": {
			"should": [{
				"wildcard": {
					"name": "*java*"
				},
				{
				"wildcard": {
					"name": "?jack*"
				}
			}
			}]
		}
	}
}

搜索名字中含有_jack**的文档；如： wjacksss; ajackwww

3.wildcard 代码实现单条件搜索

 SearchRequest request = new SearchRequest(index);
WildcardQueryBuilder query = QueryBuilders.wildcardQuery("name", "*张*");;
BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
boolQueryBuilder.should(queryBuilder);
builder.query(boolQueryBuilder);
request.source(builder);
search = client.search(request, RequestOptions.DEFAULT);

如搜索张就可以找到name为张相关数据 :张三 
搜索 三 也可以找到name为三相关数据 :张三

4.wildcard 代码实现多条件搜索

SearchRequest request = new SearchRequest(index);
WildcardQueryBuilder queryBuilder1 = QueryBuilders.wildcardQuery("*张*");;
WildcardQueryBuilder queryBuilder2 = QueryBuilders.wildcardQuery("*jack*");;
BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();
boolQueryBuilder.should(queryBuilder1);
boolQueryBuilder.should(queryBuilder2);
builder.query(boolQueryBuilder);
request.source(builder);
search = client.search(request, RequestOptions.DEFAULT);