如何使用ElasticSearch rest高级客户端按任意字段中的任何单词进行搜索？

Question

我试图搜索任何包含某些关键字的合同女巫，但是我的代码不正确：

 public Collection<Map<String, Object>> findContractsByWord(String index, String type, String word) throws CommonUserException {
    SearchRequest searchRequest = new SearchRequest(index);
    searchRequest.types(type);
    SearchSourceBuilder sourceBuilder = new SearchSourceBuilder();
    sourceBuilder.query(QueryBuilders.termQuery("", word));
    searchRequest.source(sourceBuilder);
    SearchResponse searchResponse;
    try (RestHighLevelClient client = getClient()) {
        searchResponse = client.search(searchRequest);
    } catch (IOException e) {
        throw new CommonUserException("Exception in elasticsearch", "Exception in elasticsearch");
    }
    SearchHit[] hits = searchResponse.getHits().getHits();
    Collection<Map<String, Object>> contracts = new LinkedList<>();
    for (SearchHit hit : hits) {
        contracts.add(hit.getSourceAsMap());
    }
    return contracts;
}

也许有人知道如何与其他高级客户一起做到这一点？ （弹性6.2.4）

Answer 1

我使用MultSearchRequest和wildcardQuery()解决了这个问题：

MultiSearchRequest request = new MultiSearchRequest();

    request.add(formSearchRequestForMultiSearch(index, type, ID_FIELD, word));
    request.add(formSearchRequestForMultiSearch(index, type, PROVIDER_ID_FIELD, word));
    request.add(formSearchRequestForMultiSearch(index, type, LEGAL_NUMBER_FIELD, word));
    request.add(formSearchRequestForMultiSearch(index, type, OWNER_FIELD, word));
    request.add(formSearchRequestForMultiSearch(index, type, STATUS_FIELD, word));
    request.add(formSearchRequestForMultiSearch(index, type, START_DATE_FIELD, word));
    request.add(formSearchRequestForMultiSearch(index, type, END_DATE_FIELD, word));
    request.add(formSearchRequestForMultiSearch(index, type, PRODUCT_CODE_FIELD, word));
    request.add(formSearchRequestForMultiSearch(index, type, SUBPRODUCT_CODE_FIELD, word));
    request.add(formSearchRequestForMultiSearch(index, type, CUSTOM_STATUS_FIELD, word));
    request.add(formSearchRequestForMultiSearch(index, type, SUB_STATUS_FIELD, word));

    MultiSearchResponse searchResponse;
    try (RestHighLevelClient client = getClient()) {
        searchResponse = client.multiSearch(request);
    } catch (IOException e) {
        throw new CommonUserException(ELASTIC_EXCEPTION, ELASTIC_EXCEPTION);
    }
    Collection<Map<String, Object>> contracts = new LinkedList<>();
    for (int i = 0; i < searchResponse.getResponses().length; i++) {
        SearchHit[] hits = searchResponse.getResponses()[i].getResponse().getHits().getHits();
        for (SearchHit hit : hits) {
            contracts.add(hit.getSourceAsMap());
        }
    }
    return contracts;
}

private SearchRequest formSearchRequestForMultiSearch(String index, String type, String field, String word) {
    SearchRequest searchRequest = new SearchRequest(index);
    searchRequest.types(type);
    SearchSourceBuilder searchSourceBuilder = new SearchSourceBuilder();
    searchSourceBuilder.query(QueryBuilders.wildcardQuery(field, word));
    searchRequest.source(searchSourceBuilder);
    return searchRequest;
}