使用SearchSourceBuilder和XContentParser时，在elasticsearch中将默认运算符设置为AND

import org.elasticsearch.index.query.BoolQueryBuilder;
import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.search.builder.SearchSourceBuilder;

// 创建SearchSourceBuilder对象
SearchSourceBuilder sourceBuilder = new SearchSourceBuilder();

// 创建BoolQueryBuilder对象
BoolQueryBuilder boolQueryBuilder = QueryBuilders.boolQuery();

// 设置默认运算符为AND
boolQueryBuilder.minimumShouldMatch(1);

// 添加查询条件
boolQueryBuilder.must(QueryBuilders.matchQuery("field1", "value1"));
boolQueryBuilder.must(QueryBuilders.matchQuery("field2", "value2"));

// 将布尔查询设置为查询条件
sourceBuilder.query(boolQueryBuilder);

// 执行搜索请求
SearchResponse searchResponse = client.search(new SearchRequest("index").source(sourceBuilder), RequestOptions.DEFAULT);