public void Match_prefix_phrase_query_must_transform_correclty_to_ES()
{
var query = new MatchPhrasePrefixQuery("headline", "Yuri M");
Assert.IsTrue(query.Field == "headline");
Assert.IsTrue(query.Value.ToString() == "Yuri M");
string json = query.ToString();
var jo = JsonObject.Parse(json);
var q = jo.ToQuery();
Assert.IsTrue(q.Type == QueryType.MatchPhrasePrefixQuery);
query = q as MatchPhrasePrefixQuery;
Assert.IsTrue(query.Field == "headline");
Assert.IsTrue(query.Value.ToString() == "Yuri M");
}
public IActionResult Search(string searchText)
{
searchText = searchText.ToUpperInvariant();
var host = "localhost";
var indexName = "products";
var pool = new SingleNodeConnectionPool(new Uri($"http://{host}:9200"));
var defaultIndex = indexName;
var connectionSettings = new ConnectionSettings(new Uri($"http://{host}:9200"));
connectionSettings.DefaultIndex(defaultIndex);
connectionSettings.PrettyJson();
connectionSettings.DisableDirectStreaming();
var client = new ElasticClient(connectionSettings);
var query = new MatchPhrasePrefixQuery
{
Field = "name",
Analyzer = "standard",
Boost = 1.1,
Name = "named_query",
Query = searchText,
Slop = 2,
};
var request = new SearchRequest(indexName)
{
Size = 500,
Query = query
};
var response = client.Search <Product>(request);
var res = response.Documents;
return(Ok(res));
}
/// <summary>
/// 构建查询条件
/// </summary>
/// <param name="fields"></param>
/// <returns>{item1:must,item2:should}</returns>
public ESConditionModel BuildQueryContainer(List <ESField> fields, string analyzer)
{
List <QueryContainer> must = new List <QueryContainer>(),
should = new List <QueryContainer>(),
mustNot = new List <QueryContainer>();
if (fields != null && fields.Count > 0)
{
foreach (var item in fields)
{
QueryContainer container = null;
//1.数据类型辨析（暂时不做实现）
if (item.DataType == ESDataType.GeoPoint)
{
//switch (item.QueryType)
//{
// case ESQueryType.Geo_Distance:
// container = new GeoDistanceQuery()
// {
// Location = new GeoLocation(0.1, 0.2),
// Distance =new Distance(),
// };
// break;
// case ESQueryType.Geo_Polygon:
// container = new GeoPolygonQuery(){
// Points=,
// };
// break;
// case ESQueryType.Geo_Bounding_Box:
// container = new GeoBoundingBoxQuery()
// {
// BoundingBox = new BoundingBox()
// {
// BottomRight =,
// TopLeft =,
// }
// };
// break;
//}
}
else
{
switch (item.QueryType)
{
case ESQueryType.Match:
container = new MatchQuery()
{
Analyzer = analyzer,
Field = item.Key,
Query = item.Value.Item1.ToString(),
};
break;
case ESQueryType.All:
container = new MatchAllQuery()
{
};
break;
case ESQueryType.Match_Phrase:
container = new MatchPhraseQuery()
{
Field = item.Key,
Analyzer = analyzer,
Query = item.Value.Item1.ToString()
};
break;
case ESQueryType.Match_Phrase_Prefix:
container = new MatchPhrasePrefixQuery()
{
Field = item.Key,
Analyzer = analyzer,
Query = item.Value.ToString()
};
break;
case ESQueryType.Term:
container = new TermQuery()
{
Field = item.Key,
Value = item.Value.Item1
};
break;
case ESQueryType.Range:
switch (item.DataType)
{
case ESDataType.Text:
break;
case ESDataType.Number:
container = new NumericRangeQuery()
{
Field = item.Key,
GreaterThanOrEqualTo = Convert.ToDouble(item.Value.Item1),
LessThanOrEqualTo = Convert.ToDouble(item.Value.Item2),
};
break;
case ESDataType.Date:
container = new DateRangeQuery()
{
Field = item.Key,
GreaterThanOrEqualTo = DateMath.FromString(item.Value.Item1.ToString()),
LessThanOrEqualTo = DateMath.FromString(item.Value.Item2.ToString())
};
break;
default:
break;
}
break;
}
}
//2.条件类型解析
if (container != null)
{
switch (item.ConditionType)
{
case ESConditionType.Must:
must.Add(container);
break;
case ESConditionType.Should:
should.Add(container);
break;
case ESConditionType.MustNot:
mustNot.Add(container);
break;
default:
break;
}
}
}
}
return(new ESConditionModel()
{
Must = must,
Should = should,
MustNot = mustNot
});
}
