Question

您好我正在尝试插入mongoDB 2对象。当我插入1个对象时，它工作正常，

private void Query<TO>(TO o)
{
    const string connectionString = "mongodb://localhost";
    var client = new MongoClient(connectionString);
    var server = client.GetServer();
    var database = server.GetDatabase("test");
    var collection = database.GetCollection<TO>(o.GetType().Name + "s");
    collection.Insert(o);
}

但是当我尝试插入2个对象时，BSON驱动程序发生错误

private void Query<TO, TK, TV>(TO o, Dictionary<TK, TV> ExtraFields)
{
    const string connectionString = "mongodb://localhost";
    var client = new MongoClient(connectionString);
    var server = client.GetServer();
    var database = server.GetDatabase("test");
    var collection = database.GetCollection<Object[]>(o.GetType().Name + "s");
    collection.Insert(new List<object>
    {
        o,
        ExtraFields
    });
}

我得到的错误是

{“Serializer EnumerableSerializer预期序列化不是类型ArraySerializationOptions的选项 DocumentSerializationOptions。“}

由于

Answer 1

您的集合类型必须是类，不能是数组或集合。不确定您是否尝试将“2个对象”视为一个文档或将它们作为单独的项目插入。您需要创建一个类来保存它们或者自己构建BsonDocument并以这种方式存储它们。我认为你不能像你一样使用泛型。像这样：

public class ObjectWithExtraFields {
    public Type1 O { get; set; }        
    public Dictionary<string, Type2> ExtraFields { get; set; }
}

var collection = database.GetCollection<ObjectWithExtraFields>(o.GetType().Name + "s");
collection.Insert(new ObjectWithExtraFields {    
    O = o,
    ExtraFields = ExtraFields
});

插入mongo 2对象

1 个答案: