Elasticsearch .Net Client NEST 多条件查询示例

Elasticsearch .Net Client NEST 多条件查询示例

交流

/// <summary>
/// 多条件搜索例子
/// </summary>
public class WheresQuerDemo
{

public class WhereInfo
{
public int venId { get; set; }
public string venName { get; set; }

}

/// <summary>
///
/// </summary>
public static void Search()
{
ElasticClient client = NestDemos.CreateClient();

var result=client.Search<VendorPriceInfo>(CreateSearchRequest(new WhereInfo()));
}
/// <summary>
/// searchRequest 生成
/// </summary>
/// <param name="where"></param>
/// <returns></returns>
public static Func<SearchDescriptor<VendorPriceInfo>, ISearchRequest> CreateSearchRequest(WhereInfo where)
{
//querys
var mustQuerys=new List<Func<QueryContainerDescriptor<VendorPriceInfo>, QueryContainer>>();
if (where.venId > 0)
{
mustQuerys.Add(t => t.Term(f => f.vendorID, where.venId));
}

//filters
var mustFilters = new List<Func<QueryContainerDescriptor<VendorPriceInfo>, QueryContainer>>();
if (!string.IsNullOrEmpty(where.venName))
{
mustFilters.Add(t => t.MatchPhrase(f => f.Field(fd => fd.vendorName).Query(where.venName)));
}

Func<SearchDescriptor<VendorPriceInfo>, ISearchRequest> searchRequest = r =>
r.Query(q =>
q.Bool(b =>
b.Must(mustQuerys)

.Filter(f =>
f.Bool(fb =>
fb.Must(mustFilters))
)
)
);

return searchRequest;
}

}