Question

我在我的dotnet项目中使用ElasticSearch 2.1。到目前为止面临的问题是无法在下面的行中插入批量数据获取异常。 var result = client.Bulk（bulkInsertData）; 错误：读取字符串出错。意外的令牌：StartObject。路径'items [0] .index.error'，第1行，第137位。

StackTrace： at Newtonsoft.Json.JsonReader.ReadAsStringInternal（） at Newtonsoft.Json.JsonTextReader.ReadAsString（） at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.ReadForType（JsonReader reader，JsonContract contract，Boolean hasConverter） at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject（Object newObject，JsonReader reader，JsonObjectContract contract，JsonProperty member，String id） at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Populate（JsonReader reader，Object target） at Newtonsoft.Json.Serialization.JsonSerializerProxy.PopulateInternal（JsonReader reader，Object target） at Newtonsoft.Json.JsonSerializer.Populate（JsonReader reader，Object target）在Nest.Resolvers.Converters.BulkOperationResponseItemConverter.ReadJson（JsonReader reader，Type objectType，Object existingValue，JsonSerializer serializer） at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.DeserializeConvertable（JsonConverter converter，JsonReader reader，Type objectType，Object existingValue） at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateList（IList list，JsonReader reader，JsonArrayContract contract，JsonProperty containerProperty，String id） at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateList（JsonReader reader，Type objectType，JsonContract contract，JsonProperty member，Object existingValue，String id） at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal（JsonReader reader，Type objectType，JsonContract contract，JsonProperty member，JsonContainerContract containerContract，JsonProperty containerMember，Object existingValue） at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.SetPropertyValue（JsonProperty属性，JsonConverter propertyConverter，JsonContainerContract containerContract，JsonProperty containerProperty，JsonReader reader，Object target） at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateObject（Object newObject，JsonReader reader，JsonObjectContract contract，JsonProperty member，String id） at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject（JsonReader reader，Type objectType，JsonContract contract，JsonProperty member，JsonContainerContract containerContract，JsonProperty containerMember，Object existingValue） at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal（JsonReader reader，Type objectType，JsonContract contract，JsonProperty member，JsonContainerContract containerContract，JsonProperty containerMember，Object existingValue） at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize（JsonReader reader，Type objectType，Boolean checkAdditionalContent） at Newtonsoft.Json.JsonSerializer.DeserializeInternal（JsonReader reader，Type objectType）在Newtonsoft.Json.JsonSerializer.Deserialize（JsonReader reader，Type objectType）在Nest.NestSerializer.DeserializeUsingSettings [T]（Stream stream，JsonSerializerSettings设置）在Nest.NestSerializer.Deserialize [T]（流媒体流） at Elasticsearch.Net.Connection.RequestHandlers.RequestHandler.StreamToTypedResponse [T]（ElasticsearchResponse 1 streamResponse, ITransportRequestState requestState, Byte[] readBytes) at Elasticsearch.Net.Connection.RequestHandlers.RequestHandler.ReturnTypedResponse[T](TransportRequestState 1 requestState，ElasticsearchResponse 1 streamResponse, ElasticsearchServerError& error) at Elasticsearch.Net.Connection.RequestHandlers.RequestHandler.CoordinateRequest[T](TransportRequestState 1 requestState，Int32 maxRetries，Int32 recoied，Boolean＆amp; aliveResponse）在Elasticsearch.Net.Connection.RequestHandlers.RequestHandler.DoRequest [T]（TransportRequestState 1 requestState) at Elasticsearch.Net.Connection.RequestHandlers.RequestHandler.Request[T](TransportRequestState 1 requestState，Object data）在Elasticsearch.Net.Connection.Transport.DoRequest [T]（字符串方法，字符串路径，对象数据，IRequestParameters requestParameters） at Elasticsearch.Net.ElasticsearchClient.DoRequest [T]（String method，String path，Object data，IRequestParameters requestParameters）在Elasticsearch.Net.ElasticsearchClient.Bulk [T]（Object body，Func 2 requestParameters) at Nest.RawDispatch.BulkDispatch[T](ElasticsearchPathInfo 1 pathInfo，Object body）在Nest.ElasticClient.b__339_0（ElasticsearchPathInfo 1 p, IBulkRequest d) at Nest.ElasticClient.Nest.IHighLevelToLowLevelDispatcher.Dispatch[D,Q,R](D descriptor, Func 3发送）在Nest.ElasticClient.Bulk（IBulkRequest bulkRequest）在ElasticSearch.cs中的ElasticSearch.ElasticSearchInsertData.InsertCaseData（）：第61行

运行以下代码：创建映射并且不会插入数据，因为m得到上述错误使用0文档创建的映射 GET / 1246Index pap / _mapping

   "1246Index&nbsp;pap": {
  "mappings": {
     "ElasticSearchInfo": {
        "properties": {
           "Number": {
              "type": "string",
              "index": "no"
           },
            "ID": {
              "type": "string",
              "index": "no"
           },
           "Type": {
              "type": "string",
              "index": "not_analyzed"
           },
           "NestedObjectinformation": {
              "type": "nested",
              "properties": {
                 "Name": {
                    "type": "string"
                 }
              }
           }
        }
     }
  }

}

代码：

[ElasticType(Name = "ElasticSearchInfo")]
public class ElasticSearchNestedInfo
{
    [ElasticProperty(Name = "ID", Index = FieldIndexOption.No, Type = FieldType.String)]
    public string ID { get; set; }

    [ElasticProperty(Name = "Type", Index = FieldIndexOption.NotAnalyzed, Type = FieldType.String)]
    public string Type { get; set; }

    [ElasticProperty(Name = "Number", Index = FieldIndexOption.No, Type = FieldType.String)]
    public string Number { get; set; }

    [ElasticProperty(Name = "nestedobjectinformation", Index = FieldIndexOption.Analyzed, Type = FieldType.Nested)]
    public List<ElasticSearchNestedInfo> NestedObjectinformation { get; set; }
}

[ElasticType(Name = "ElasticSearchNestedInfo")]
public class ElasticSearchNestedInfo
{
    [ElasticProperty(Name = "Name", Index = FieldIndexOption.No, Type = FieldType.String)]
    public string Name { get; set; }
}


List<ElasticSearchInfo> elasticSearchCaseInfo = caseBL.GetElasticSearchInsertData(i);
        string connElasticServer = SystemCacheHelper.GetElasticSearchConnectionString();
        var node = new Uri(connElasticServer);

        var settings = new ConnectionSettings(node).ExposeRawResponse();
        var client = new ElasticClient(settings);
        BulkDescriptor bulkInsertData = new BulkDescriptor();

        foreach (var item in elasticSearchCaseInfo)
        {
            string index = item.ID + item.Type; 

            client.CreateIndex(ind => ind.Index(index).AddMapping<ElasticSearchInfo>(map => map.MapFromAttributes()));
             // .AddMapping<ElasticSearchNestedInfo>(diag => diag.MapFromAttributes()));

            bulkInsertData.Index<ElasticSearchInfo>(bulkInsert => bulkInsert.Document(item)
               .Index(index)
                    .Type(item.Type)
                        .Id((item.ID)));
        }

        if (elasticSearchCaseInfo.Count > 0)
        {
            var result = client.Bulk(bulkInsertData);


           client.Map<ElasticSearchInfo>(m => m
                        .MapFromAttributes()
                        .Properties(p => p
                        .NestedObject<ElasticSearchNestedInfo>(no => no
                            .Name(n => n.NestedObjectinformation.First())
                            .Dynamic()
                            .Enabled()
                            .IncludeInAll()
                            .IncludeInParent()
                            .IncludeInRoot()
                            .MapFromAttributes()
                            .Path("nestedobjectinformation")
                            )
                            )
                            );
        }

由于

Answer 1

假设您的意图是创建索引并将列表内容放在单个批量插入中。你应该这样做：

public void TestBulkInsert()
        {
            List<ElasticSearchInfo> elasticSearchCaseInfo = caseBL.GetElasticSearchInsertData(i);
            string connElasticServer = SystemCacheHelper.GetElasticSearchConnectionString();
            var node = new Uri(connElasticServer);

            var settings = new ConnectionSettings(node).ExposeRawResponse();
            var client = new ElasticClient(settings);

            client.CreateIndex(_ => _.Index<ElasticSearchInfo>()));
            client.Map<ElasticSearchInfo>(
                m => m
                    .Index<ElasticSearchInfo>()
                    .MapFromAttributes()
                    .Properties(p => p
                        .NestedObject<ElasticSearchNestedInfo>(no => no
                            .Name(n => n.NestedObjectinformation.First())
                            .Dynamic()
                            .Enabled()
                            .IncludeInAll()
                            .IncludeInParent()
                            .IncludeInRoot()
                            .MapFromAttributes()
                            .Path("nestedobjectinformation")
                        )
                    )
                );
            var index = client.Infer.IndexName<ElasticSearchInfo>();
            var type = client.Infer.TypeName<ElasticSearchInfo>();
            client.Bulk(
                bd => elasticSearchCaseInfo.Aggregate(
                    bd,
                    (bdi, item) => bdi
                        .Index<ElasticSearchInfo>(
                            bid => bid
                                .Index(index)
                                .Type(type)
                                .Id(item.ID)
                                .Document(item)
                        )
                    )
                );
        }

另外，我强烈建议您不要使用属性映射，或者至少不要将它与流畅的映射混合使用。

读取字符串出错。意外的令牌：StartObject。路径'项目[0] .index.error'，第1行，第137位

1 个答案: