ElasticSearch.net与查询的嵌套匹配不起作用

时间:2018-11-28 05:47:40

标签: c# elasticsearch nest elasticsearch.net

我正在使用elasticsearch.net库查询ES。面临与查找结果相关的问题。添加了屏幕快照,该屏幕快照显示了我从Kibana进行的查询所使用的搜索结果。

尝试使用以下代码时,不会检索到结果。

var searchResponse = client.Search<Product>(s => s
.Index("products1")
.From(0)
.Size(10)
.Query(q => q
.Match(m => m
.Field(f => f.Name)
.Query("Duracarb 32 oz (907.2 g)")
)
)
);

但是当我尝试通过添加匹配项来尝试以下代码时,所有人都能够成功检索10种产品。

var searchResponse = client.Search<Product>(s => s
.Index("products1")
.From(0)
.Size(10)
.Query(q => q
.MatchAll()
)
);

下面是我使用的完整代码。

var uris = new[]
{
    new Uri(_searchSettings.EnableElasticURL),
    //new Uri("http://localhost:9201"),
    //new Uri("http://localhost:9202"),
};

var connectionPool = new SniffingConnectionPool(uris);
var settings = new ConnectionSettings(connectionPool)
    .DefaultIndex("products1");

var client = new ElasticClient(settings);
var searchRequest = new SearchRequest<Product>(Nest.Indices.All, Types.All)
{
    From = 0,
    Size = 10,
    Query = new MatchQuery
    {
        Field = Infer.Field<Product>(f => f.Name),
        Query = "Duracarb 32 oz(907.2 g)"
    }
};
var searchResponse = client.Search<Product>(s => s
.Index("products1")
            .From(0)
            .Size(10)
            .Query(q => q
     .Match(m => m.Field(f => f.Name).Query("Duracarb 32 oz (907.2 g)")))
    );
var stream = new System.IO.MemoryStream();
client.SourceSerializer.Serialize(searchResponse, stream);
var jsonQuery = System.Text.Encoding.UTF8.GetString(stream.ToArray());
var query = searchResponse.Documents;
var requestttt=searchResponse.DebugInformation;
//var query = GetProductQuery(searchQuery, null);
_logger.Debug("Search Response: "+query);

Please find the screenshot below of Kibana which has data related to my search keyword in code above.

1 个答案:

答案 0 :(得分:1)

更改从POCO属性名称推断字段名称的方式:

var settings = new ConnectionSettings(connectionPool)
    .DefaultFieldNameInferrer(n => n)
    .DefaultIndex("products1");

现在,Infer.Field<Product>(f => f.Name)将序列化为"Name"以匹配索引映射中的字段名称。

NEST by default camelcases POCO property names,因此默认情况下将序列化为"name"