java实现matchAllQuery和rangeQuery组合查询
时间: 2023-12-17 18:15:57 浏览: 26
可以使用Elasticsearch的Java API来实现matchAllQuery和rangeQuery的组合查询。以下是一个示例代码:
```java
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.index.query.RangeQueryBuilder;
import org.elasticsearch.index.query.BoolQueryBuilder;
import org.elasticsearch.index.query.MatchAllQueryBuilder;
import org.elasticsearch.client.RestHighLevelClient;
public class QueryExample {
public static void main(String[] args) {
RestHighLevelClient client = createClient();
// 创建一个matchAllQuery
MatchAllQueryBuilder matchAllQuery = QueryBuilders.matchAllQuery();
// 创建一个rangeQuery
RangeQueryBuilder rangeQuery = QueryBuilders.rangeQuery("age")
.gte(18)
.lte(30);
// 创建一个boolQuery,并将matchAllQuery和rangeQuery添加到其中
BoolQueryBuilder boolQuery = QueryBuilders.boolQuery()
.must(matchAllQuery)
.filter(rangeQuery);
// 执行查询操作
SearchRequest searchRequest = new SearchRequest("my-index");
SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
searchSourceBuilder.query(boolQuery);
searchRequest.source(searchSourceBuilder);
SearchResponse searchResponse = client.search(searchRequest, RequestOptions.DEFAULT);
// 处理查询结果
SearchHits hits = searchResponse.getHits();
for (SearchHit hit : hits.getHits()) {
// 处理每个文档的结果
}
// 关闭连接
closeClient(client);
}
}
```
在上面的代码中,我们首先创建了一个matchAllQuery和一个rangeQuery,然后将它们添加到boolQuery中。最后,我们将boolQuery添加到searchSourceBuilder中,并执行查询操作。通过处理SearchHits对象中的结果,我们可以获得符合查询条件的文档。