ElasticSearch NEST搜索

var client = ElasticsearchHelper.GetElasticClient("order");
QueryContainer termQuery = new TermQuery() { Field = "lastname", Value = "求和" };
var result = client.Search<Order>(s => s
                .Aggregations(a => a
                    .Sum("my_sum_agg", sa => sa
                        .Field(p => p.TotalPrice)
                    )
                )
            );
var agg = result.Aggs.Sum("my_sum_agg");
var searchResults = client.Search<Order>(s => s
              //  .Query(termQuery)  //带筛选条件
                .Aggregations(r => r.Terms("firstname", r1 => r1.Field(r2 => r2.Lastname)
                    .OrderAscending("sumprice")
                    .Aggregations(y => y.Sum("sumprice", y1 => y1.Field(y2 => y2.TotalPrice))))));
var carTypes = searchResults.Aggs.Terms("firstname");
            List<double> re=new List<double>();
            foreach (var carType in carTypes.Items)
            {
                string key = carType.Key;
                System.Console.WriteLine("key:" + key + " total:" + carType.Sum("sumprice").Value);
                re.Add((double)carType.Sum("sumprice").Value);
            }
            //List<SumTotalPrice> orders = searchResults.Documents.ToList();
         //   System.Console.WriteLine(orders.Count() + " total:" + searchResults.Total);
            //System.Console.WriteLine(searchResults.RequestInformation);
            System.Console.ReadLine();


            #endregion
  #region 多条件精确匹配
            var client = ElasticsearchHelper.GetElasticClient("order");
            QueryContainer termQuery = new TermQuery() { Field = "firstname", Value = "测试" };
            QueryContainer wholeWordQuery = new TermQuery() { Field = "lastname", Value = "addddd" };
            //非索引字段。无法查询 此查询条件无效
            QueryContainer termQuery1 = new TermQuery() { Field = "content", Value = "  天空是百度的1696" };
            termQuery = (termQuery || wholeWordQuery) || termQuery1;


            var searchResults = client.Search<Order>(s => s
                .From(0)
                .Size(10)
                .Query(termQuery)
                );
            List<Order> orders = searchResults.Documents.ToList();
            System.Console.WriteLine(orders.Count() + " total:" + searchResults.Total);
            System.Console.ReadLine();


            #endregion


               #region 精确匹配
            var client = ElasticsearchHelper.GetElasticClient("order");
            var searchResults = client.Search<Order>(s => s
              .From(0)
              .Size(10)
              .Query(q => q.Term(r => r.OnField(k => k.Firstname).Value("棉花")))
              .Highlight(h => h.OnFields(e => e.OnField("firstname")
                                .PreTags("<b style='color:black'>")
                                .PostTags("</b>")))
              .Sort(r => r.Descending().OnField(q => q.Createtime))
              );
            List<Order> orders = searchResults.Documents.ToList();


            System.Console.WriteLine(orders.Count() + " total:" + searchResults.Total);
            System.Console.ReadLine();


            #endregion