问题描述
我正在尝试使用查询构建器在 Java 中翻译以下弹性搜索查询?有人可以给出任何想法吗?
GET <index-name>/_search
{
“size”: 1,“sort”: [
{
“Date”: {
“order”: “desc”
}
}
]
}
解决方法
您需要使用 SortBuilder
对字段进行排序。下面的请求将按降序对 Date
字段进行排序
RestHighLevelClient client = new RestHighLevelClient(restClientBuilder);
SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
searchSourceBuilder.size(1).sort(new FieldSortBuilder("Date").order(SortOrder.DESC));
SearchRequest searchRequest = new SearchRequest("my-index");
searchRequest.source(searchSourceBuilder);
SearchResponse searchResponse = client.search(searchRequest,RequestOptions.DEFAULT);