搜索未返回预期结果

Question

我正在尝试连接到 elasticsearch 并在 6.3.2 版本中进行一些基本查询。我正在尝试的代码是这样的：RestHighLevelClient client = new RestHighLevelClient(RestClient.builder(new HttpHost("localhost", 30100, "http")));SearchRequest sr = new SearchRequest(INDEX);sr.indicesOptions(IndicesOptions.lenientExpandOpen());SearchSourceBuilder ssb = new SearchSourceBuilder();sr.source(ssb);MatchQueryBuilder builder = QueryBuilders.matchQuery("logLevel.keyword", "ERROR");    QueryBuilder qb = QueryBuilders.boolQuery().must(builder);    ssb.query(qb);SearchResponse response = null;try {    response = client.search(sr);    System.out.println("total hits ::: " + response.getHits().getTotalHits());} catch (IOException e) {    e.printStackTrace();} finally {    try {        client.close();    } catch (IOException e) {        e.printStackTrace();    }}System.out.println(response);更新 正如建议的那样，我现在才使用查询。我尝试了来自 API 的构建查询，我看到了结果，但由于某种原因response.getHits().getTotalHits()返回零。生成的查询如下所示，并在 kibana 中给了我预期的结果，即总数为 1 ：GET /_search{  "from": 0,  "query": {    "bool": {      "must": [        {          "match": {            "logLevel.keyword": {              "query": "ERROR",              "operator": "OR",              "prefix_length": 0,              "max_expansions": 50,              "fuzzy_transpositions": true,              "lenient": false,              "zero_terms_query": "NONE",              "auto_generate_synonyms_phrase_query": true,              "boost": 1            }          }        }      ],      "adjust_pure_negative": true,      "boost": 1    }  }}是否缺少 restclient 的一些配置？