Question

在使用Nest构建我的Elasticsearch查询时，我希望能够看到发送到Elasticsearch的JSON版本。这可能吗？我想是某种解串器。

这里是我的跟进问题的信息：

{
  "_infer": {
    "defaultIndex": "myindex"
  },
  "acknowledged": false,
  "isValid": false,
  "connectionStatus": {
    "success": false,
    "requestMethod": "POST",
    "requestUrl": "http://localhost:9200/myindex",
    "settings": {},
    "request": "{
  "settings": {
    "index": {
      "analysis": {
        "analyzer": {
          "fullTermCaseInsensitive": {
            "tokenizer": "keyword",
            "filter": [
              "standard",
              "lowercase"
            ],
            "type": "custom"
          },
          "fullTerm": {
            "tokenizer": "keyword",
            "filter": [
              "standard"
            ],
            "type": "custom"
          },
          "caseInsensitive": {
            "tokenizer": "lowercase",
            "filter": [
              "standard"
            ],
            "type": "custom"
          }
        }
      }
    }
  },
  "mappings": {
    "searchdata": {
      "properties": {
        "upc": {
          "type": "string"
        },
        "productid": {
          "type": "string"
        },
        "title": {
          "type": "string"
        },
        "store": {
          "type": "string"
        },
        "mediaformat": {
          "type": "multi_field",
          "fields": {
            "mediaformat": {
              "type": "string",
              "analyzer": "fullTermCaseInsensitive"
            },
            "raw": {
              "type": "string",
              "index": "not_analyzed"
            }
          }
        },
        "label": {
          "type": "string"
        },
        "vendor": {
          "type": "string"
        },
        "availabledate": {
          "type": "date"
        },
        "releasedate": {
          "type": "date"
        },
        "lastreturndate": {
          "type": "date"
        },
        "nonreturnable": {
          "type": "string"
        },
        "mpaa": {
          "type": "string"
        },
        "esrb": {
          "type": "multi_field",
          "fields": {
            "esrb": {
              "type": "string",
              "analyzer": "fullTermCaseInsensitive"
            },
            "raw": {
              "type": "string",
              "index": "not_analyzed"
            }
          }
        },
        "csnrflag": {
          "type": "string"
        },
        "cover": {
          "type": "string"
        },
        "size": {
          "type": "string"
        },
        "color": {
          "type": "string"
        },
        "style": {
          "type": "string"
        },
        "qoh": {
          "type": "integer"
        },
        "adult": {
          "type": "integer"
        },
        "salesrank": {
          "type": "integer"
        },
        "listprice": {
          "type": "double"
        },
        "sellingprice": {
          "type": "double"
        },
        "costprice": {
          "type": "double"
        },
        "specialorder": {
          "type": "string"
        },
        "flags": {
          "type": "string"
        },
        "salescategory": {
          "type": "string"
        },
        "artists": {
          "type": "object",
          "properties": {
            "name": {
              "type": "string",
              "analyzer": "fullTerm",
              "index": "not_analyzed"
            },
            "id": {
              "type": "string",
              "analyzer": "fullTerm",
              "index": "not_analyzed"
            }
          }
        },
        "directors": {
          "type": "object",
          "properties": {
            "name": {
              "type": "string",
              "analyzer": "fullTerm",
              "index": "not_analyzed"
            },
            "id": {
              "type": "string",
              "analyzer": "fullTerm",
              "index": "not_analyzed"
            }
          }
        },
        "starring": {
          "type": "object",
          "properties": {
            "name": {
              "type": "string",
              "analyzer": "fullTerm",
              "index": "not_analyzed"
            },
            "id": {
              "type": "string",
              "analyzer": "fullTerm",
              "index": "not_analyzed"
            }
          }
        },
        "credits": {
          "type": "object",
          "properties": {
            "name": {
              "type": "string",
              "analyzer": "fullTerm",
              "index": "not_analyzed"
            },
            "id": {
              "type": "string",
              "analyzer": "fullTerm",
              "index": "not_analyzed"
            }
          }
        },
        "additionaltitles": {
          "type": "string",
          "analyzer": "caseInsensitive"
        },
        "attributes": {
          "type": "string",
          "analyzer": "caseInsensitive"
        },
        "specialty": {
          "type": "multi_field",
          "fields": {
            "specialty": {
              "type": "string",
              "analyzer": "fullTermCaseInsensitive"
            },
            "raw": {
              "type": "string",
              "index": "not_analyzed"
            }
          }
        },
        "genres": {
          "type": "multi_field",
          "fields": {
            "genres": {
              "type": "string",
              "analyzer": "fullTermCaseInsensitive"
            },
            "raw": {
              "type": "string",
              "index": "not_analyzed"
            }
          }
        },
        "theme": {
          "type": "multi_field",
          "fields": {
            "theme": {
              "type": "string",
              "analyzer": "fullTermCaseInsensitive"
            },
            "raw": {
              "type": "string",
              "index": "not_analyzed"
            }
          }
        },
        "price": {
          "type": "multi_field",
          "fields": {
            "price": {
              "type": "string",
              "analyzer": "fullTermCaseInsensitive"
            },
            "raw": {
              "type": "string",
              "index": "not_analyzed"
            }
          }
        },
        "tracks": {
          "type": "string",
          "analyzer": "caseInsensitive"
        },
        "deleted": {
          "type": "string"
        },
        "updatedate": {
          "type": "date"
        },
        "processed": {
          "type": "string"
        },
        "decades": {
          "type": "multi_field",
          "fields": {
            "decades": {
              "type": "string",
              "analyzer": "fullTermCaseInsensitive"
            },
            "raw": {
              "type": "string",
              "index": "not_analyzed"
            }
          }
        },
        "period": {
          "type": "multi_field",
          "fields": {
            "period": {
              "type": "string",
              "analyzer": "fullTermCaseInsensitive"
            },
            "raw": {
              "type": "string",
              "index": "not_analyzed"
            }
          }
        },
        "platform": {
          "type": "multi_field",
          "fields": {
            "platform": {
              "type": "string",
              "analyzer": "fullTermCaseInsensitive"
            },
            "raw": {
              "type": "string",
              "index": "not_analyzed"
            }
          }
        }
      }
    }
  }
}",
    "numberOfRetries": 0,
    "httpStatusCode": 400,
    "serializer": {},
    "successOrKnownError": true
  },
  "infer": {
    "defaultIndex": "myindex"
  }
}

Answer 1

烨。您可以使用ElasticClient公开的序列化程序，如下所示：

var query = Nest.Query<SomeObject>...
var json = Client.Serializer.SerializeToString(query);

您也可以直接使用Newtonsoft或任何JSON库来序列化您的查询对象。虽然在ElasticClient中使用了序列化程序（基本上包含了Newtonsoft），但它将为您提供NEST将生成的确切JSON。

详细了解如何在NEST中完成单元测试，以获取更多详细信息，特别是this。

Answer 2

我使用像这样的SearchDescriptor进行复杂的查询：

SearchDescriptor<T> sd = new SearchDescriptor<T>()
.From(0).Size(100)
    .Query(q => q
        .Bool(t => t
            .Must(u => u
                .Bool(v => v
                    .Should(
                        ...
                    )
                )
            )
        )
    );

得到了反序列化的JSON：

{
  "from": 0,
  "size": 100,
  "query": {
    "bool": {
      "must": [
        {
          "bool": {
            "should": [
              ...
            ]
          }
        }
      ]
    }
  }
}

这很烦人，NEST库应该有一些东西从请求中吐出JSON。然而，这对我有用：

using (MemoryStream mStream = new MemoryStream()) {
    client.Serializer.Serialize(sd, mStream);
    Console.WriteLine(Encoding.ASCII.GetString(mStream.ToArray()));
}

NEST库版本：2.0.0.0。较新的版本可能有一个更简单的方法来获得这个（希望）。

Answer 3

如果上面的答案不起作用，或者你想要一个更简单的答案，我在这里发布了另一种方式，可能是一个重复的（但措辞不同）问题： https://stackoverflow.com/a/31247636/261405

Answer 4

将此添加到您的WebApiConfig.cs：

public static void Register(HttpConfiguration config)
{
    ...
    // ignore circular reference globally
    config.Formatters.JsonFormatter.SerializerSettings.ReferenceLoopHandling = Newtonsoft.Json.ReferenceLoopHandling.Ignore;
    ...
}

然后你应该可以做这样的事情：

// Return raw
var esObj = await _client.SearchAsync<object>(searchRequest);

// more specific deserialization using Newtonsoft.Json example
foreach (var hit in esObj.Hits) 
{
    var myObj = JsonConvert.DeserializeObject<MyObject>(hit.xxx);
    ...
}

Answer 5

Nest 5.3.0：

        var memoryStream = new System.IO.MemoryStream();
        client.Serializer.Serialize(query, memoryStream);
        var jsonQuery = System.Text.Encoding.UTF8.GetString(memoryStream.ToArray());

有没有办法反序列化Elasticsearch Nest搜索查询？

5 个答案: