无法从 BsonType“Array”反序列化“BsonDocument”

Question

我在尝试将 json 字符串解析为 BsonDocument 时遇到此错误。

C# 代码为：

        string jsonText = System.IO.File.ReadAllText(@"source.json");
        var document = BsonDocument.Parse(jsonText);
        var collection = _database.GetCollection<BsonDocument>("collectionName");
        collection.InsertOne(document);

虽然最后的 C# 代码适用于单个文档：

{
 "field1": 1,
 "field2": "value",
 "field3": "value",
 "field4": "value",
 "arr1": [
   {
    "arrField1": 1,
    "arrField2": "value"
   }
         ]
}

我在解析 json 数组文档时收到异常Cannot deserialize a 'BsonDocument from BsonType 'Array' ：

[
 {
  "field1": 1,
  "field2": "value",
  "field3": "value",
  "field4": "value",
  "arr1": [
    {
      "arrField1": 1,
      "arrField2": "value"
    }
          ]
 },
 {
  "field1": 2,
  "field2": "value",
  "field3": "value",
  "field4": "value",
  "arr1": [
    {
      "arrField1": 1,
      "arrField2": "value"
    }
          ]
  }
]

关于如何解析具有多个元素的 json 的任何想法？ 提前致谢。

Answer 1

您可以直接使用BsonArraySerializer

using (var jsonReader = new JsonReader(text))
{
   var serializer = new BsonArraySerializer();
   var bsonArray = serializer.Deserialize(BsonDeserializationContext.CreateRoot(jsonReader));
}

Answer 2

进一步了解@rnofenko 的答案您可以遍历数组并逐个插入文档

BsonArray bsonArray;

using (var jsonReader = new JsonReader(text))
{
     var serializer = new BsonArraySerializer();
     bsonArray = serializer.Deserialize(BsonDeserializationContext.CreateRoot(jsonReader));
}

var collection = database.GetCollection<BsonDocument>("SomeObject_Collection");

foreach (BsonValue bsonValue in bsonArray)
{
   var b = bsonValue.ToBsonDocument();
   await collection.InsertOneAsync(b);

}