[英]What is POCO Object with the Logstash document in Elasticsearch
我在从LogStash导入的ElasticSearch中有文档,例如:
{
"_index": "logstash-2018.03.13",
"_type": "logs",
"_id": "AWIdXdfYQVCHQ1iyikAx",
"_score": 1,
"_source": {
"Action": "view",
"offset": 34497789,
"Ip": "113.161.25.104",
"Url": "http://vietnamnet.vn/",
"tags": [
"beats_input_codec_plain_applied"
],
"CateAlias": "trang-chu",
"ActionDate": "2018-03-13 10:18:31",
"@timestamp": "2018-03-13T03:18:31.000Z",
"WebsiteCode": "VietNamNet",
"@version": "1",
"beat": {
"hostname": "Tracking59",
"name": "Tracking59",
"version": "5.4.3"
},
"host": "Tracking59",
"ArticleId": 0,
"Domain": "vietnamnet.vn"
},
"fields": {
"@timestamp": [
1520911111000
]
}
}
我使用NEST lib连接并从Elasticsearch获取数据。 我阅读并遵循链接: https ://www.elastic.co/guide/en/elasticsearch/client/net-api/current/nest-getting-started.html按照@ sramalingam24的答案,我创建了我的POCO类:
public class Beat
{
public string hostname { get; set; }
public string name { get; set; }
public string version { get; set; }
}
public class LogItem
{
public string Action { get; set; }
public int offset { get; set; }
public string Ip { get; set; }
public string Url { get; set; }
public IList<string> tags { get; set; }
public string CateAlias { get; set; }
public string ActionDate { get; set; }
public DateTime @timestamp { get; set; }
public string WebsiteCode { get; set; }
public string @version { get; set; }
public Beat beat { get; set; }
public string host { get; set; }
public int ArticleId { get; set; }
public string Domain { get; set; }
}
但是当我搜索时,找不到任何文档匹配此对象。 我的代码在这里搜索:
var settings = new ConnectionSettings(new Uri("http://localhost:9200"))
.DefaultIndex("logstash-2018.03.12");
var client = new ElasticClient(settings);
var result = client.Search<LogItem>(s => s.Index("logstash-2018.03.12").Type("logs")
.Query(
q => q.Match(m => m.Field(f => f.CateAlias).Query("trang-chu"))
)
);
Console.Write(result.Total);
var total = client.Count<dynamic>().Count;
Console.Write(total);
Console.ReadLine();
他们两个都返回:0。当我使用Kibana进行查询时,我得到了很多物品。
有几种方法可以做到这一点
您可以使用上面文档的_source部分和jsonutils.com生成所需的poco规范
只需使用
var searchRes = client.Search <动态>(...)
而不是指定poco
var searchRes = client.Search <Newtonsoft.Json.Linq.JObject>(...)
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.