elasticsearch 6.3.2的NestedSortBuilder使用示例

import org.elasticsearch.index.query.QueryBuilders;
import org.elasticsearch.search.sort.SortBuilders;
import org.elasticsearch.search.sort.SortOrder;
import org.elasticsearch.search.sort.NestedSortBuilder;

// 创建一个NestedSortBuilder对象
NestedSortBuilder nestedSortBuilder = SortBuilders.nestedSort("nested_field")
    .setNestedPath("nested_path")
    .setFilter(QueryBuilders.termQuery("nested_field.keyword", "value"))
    .setOrder(SortOrder.DESC);

// 将NestedSortBuilder对象应用于搜索查询
SearchResponse response = client.prepareSearch("index_name")
    .setQuery(QueryBuilders.matchAllQuery())
    .addSort(nestedSortBuilder)
    .get();

// 处理搜索结果
SearchHits hits = response.getHits();
for (SearchHit hit : hits) {
    // 处理每个搜索结果
}