在node.js中創建文檔時使用c＃驅動程序

我的數據庫中的文檔是使用node.js創建的。 https://github.com/mongodb/node-mongodb-native我正在使用mongodb c＃驅動程序，當我嘗試訪問它們時出現錯誤。我猜想，node.js驅動程序創建的目標與c＃驅動程序創建的目標不同。在node.js中創建文檔時使用c＃驅動程序

Unhandled Exception: System.IO.FileFormatException: An error occurred while deserializing the _id property of class trader.Formula: 'CD2j7m4qDLMowGCXi' is not a valid 24 digit hex string. ---> System.FormatException: 'CD2j7m4qDLMowGCXi' is not a valid 24 digit hex string. 
    at MongoDB.Bson.ObjectId.Parse(String s) 
    at MongoDB.Bson.Serialization.Serializers.ObjectIdSerializer.Deserialize(BsonReader bsonReader, Type nominalType, Type actualType, IBsonSerializati onOptions options) 
    at MongoDB.Bson.Serialization.BsonClassMapSerializer.DeserializeMemberValue(BsonReader bsonReader, BsonMemberMap memberMap) 
    --- End of inner exception stack trace --- 
    at MongoDB.Bson.Serialization.BsonClassMapSerializer.DeserializeMemberValue(BsonReader bsonReader, BsonMemberMap memberMap) 
    at MongoDB.Bson.Serialization.BsonClassMapSerializer.Deserialize(BsonReader bsonReader, Type nominalType, Type actualType, IBsonSerializationOptions options) 
    at MongoDB.Bson.Serialization.BsonClassMapSerializer.Deserialize(BsonReader bsonReader, Type nominalType, IBsonSerializationOptions options) 
    at MongoDB.Driver.Internal.MongoReplyMessage`1.ReadFrom(BsonBuffer buffer, IBsonSerializationOptions serializationOptions) 
    at MongoDB.Driver.Internal.MongoConnection.ReceiveMessage[TDocument](BsonBinaryReaderSettings readerSettings, IBsonSerializer serializer, IBsonSerializationOptions serializationOptions) 
    at MongoDB.Driver.MongoCursorEnumerator`1.GetReply(MongoConnection connection, MongoRequestMessage message) 
    at MongoDB.Driver.MongoCursorEnumerator`1.GetFirst() 
    at MongoDB.Driver.MongoCursorEnumerator`1.MoveNext()

我該如何解決這個錯誤？

using System; 
using System.Collections.Generic; 
using System.Linq; 
using System.Text; 
using System.Threading.Tasks; 
using MongoDB.Bson; 
using MongoDB.Driver; 

namespace trader 
{ 
    public class Formula 
    { 
     public ObjectId _id { get; set; } 
     public string name { get; set; } 
    } 

    class Program 
    { 
     static void Main(string[] args) 
     { 

      MongoClient client = new MongoClient("mongodb://localhost:27017"); 
      MongoServer server = client.GetServer(); 
      MongoDatabase db = server.GetDatabase("trader"); 
      var formulaCollection = db.GetCollection<Formula>("formulas"); 
      var formulas = formulaCollection.FindAll(); 
      foreach (var formula in formulas) 
      { 
       Console.WriteLine(formula.name); 
      } 
     } 
    } 
}

這是db.formulas.find（{}，{名稱：1}）

{ "_id" : "9RZuitaJ7uKvrBKbE", "name" : "10d sma" } 
{ "_id" : "kjLzXChio8wD2MQcD", "name" : "< 10d mean" } 
{ "_id" : "mmjSnHS5L2GztXPLX", "name" : "< 2h mean" } 
{ "_id" : "bH5zBEz5CnMFJMnSZ", "name" : "< 2h mean > 0.4 sd2h" } 
{ "_id" : "A2joSNeBxPZTJgkGs", "name" : "< 2d mean > 0.4 sd2d" } 
{ "_id" : "6jgQvFci3mW5Aijr6", "name" : "< 2d mean > 0.4 sd2d 2h sma" } 
{ "_id" : "hHBRtu2nWZiYBdHGq", "name" : "2d sma" }

來源

2013-07-16 Dan

，您可以選擇使用蒙戈外殼trader.formulas一些樣本文檔，並張貼在這裏？它看起來像你從你的node.js應用程序創建的_id不是類型ObjectId

來源

2013-07-17 00:04:28

我編輯了一些結果的問題。它看起來像是字符串，我想我只是意識到了爲什麼。我也在使用Meteor.js，這些公式是在meteor.js中創建的，我記得它讀到了與objectids有關的一些問題。有沒有辦法讓這些工作在C＃中？謝謝您的幫助！ – Dan

是的，你說得對，他們是字符串。我將嘗試將它們全部轉換爲objectIds。 – Dan

在node.js中創建文檔時使用c＃驅動程序

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