ElasticSearch 7.X系列之：查询文档数量

GET recommended-20220330/_count
{
  "query": {
  }
}

 CountRequest countRequest=new CountRequest(param.getIndex());
        //统计总数
        try {
            CountResponse countResponse = client.count(countRequest, RequestOptions.DEFAULT);
            System.out.println(countResponse.getCount());
            map.put("SearchCount",countResponse.getCount());
        } catch (Exception e) {
            log.error("[搜索关键词统计-统计总数] 错误详情 : "+ ZsylException.getErrorMessage(e));
            return map;
        }