Question

我有数据结构：

{
    first_name: Ann,
    last_name: Smith
}

我想搜索记录使用查询：

AND：first_name = Ann AND last_name = Smith
OR：first_name = Ann OR last_name = Smith
LIKE：first_name = n AND last_name = mi
获取总计数记录，接受查询

我尝试使用Java代码进行搜索：

Settings settings = ImmutableSettings.settingsBuilder().put("cluster.name", "elasticsearch").build();
TransportClient transportClient = new TransportClient(settings);
transportClient = transportClient.addTransportAddress(new InetSocketTransportAddress("localhost", 9300));

Client client = transportClient;

SearchRequestBuilder srb1 = client.prepareSearch().setQuery(QueryBuilders.matchQuery("firstName", firstName));
SearchRequestBuilder srb2 = client.prepareSearch().setQuery(QueryBuilders.matchQuery("lastName", lastName));

MultiSearchResponse query = client.prepareMultiSearch()
            .add(srb1)
            .add(srb2)
            .execute().actionGet();

for (MultiSearchResponse.Item item : query.getResponses()) {
        SearchResponse response = item.getResponse();
        System.out.println(response);
}
transportClient.close();
client.close();

但我没有好结果。而ElasticSearch Java API文档非常少。

Answer 1

我认为你需要这个：

SearchRequestBuilder srb1 = client.prepareSearch().setQuery(QueryBuilders
                .boolQuery()
                .must(QueryBuilders.termQuery("first_name", "Ann"))
                .must(QueryBuilders.termQuery("last_name", "Smith")));

以上查询会为您提供first_name = Ann AND last_name = Smith

的结果

SearchRequestBuilder srb2 = client.prepareSearch().setQuery(QueryBuilders
                .boolQuery()
                .should(QueryBuilders.termQuery("first_name", "Ann"))
                .should(QueryBuilders.termQuery("last_name", "Smith")));

以上查询会为您提供first_name = Ann OR last_name = Smith

的结果

SearchRequestBuilder srb3 = client.prepareSearch().setQuery(QueryBuilders
                .boolQuery()
                .must(QueryBuilders.wildcardQuery("first_name", "n*"))
                .must(QueryBuilders.wildcardQuery("last_name", "mi*")));

上面的查询将给出`first_name以n开头的结果以及以mi

开头的last_name

BTW prepareMultiSearch仅用于使用单个请求向ES发送多个搜索请求（通信开销较少）。

请看一下：http://search-lucene.com/。您可以找到大量有关Elasticsearch，Lucene，Solr和相关项目的有用信息。

ElasticSearch查询不会返回良好的结果

1 个答案: