如何使用c＃2.0驱动程序将数据插入mongodb集合？

I'm using the MongoClient in my c# console application to connect to MongoDB

我在我的c#控制台应用程序中使用MongoClient连接到MongoDB

https://github.com/mongodb/mongo-csharp-driver/releases/tag/v2.0.0-rc0

My code

  class Program
   {
       static void Main(string[] args)
       {
        const string connectionString = "mongodb://localhost:27017";

        // Create a MongoClient object by using the connection string
        var client = new MongoClient(connectionString);

        //Use the MongoClient to access the server
        var database = client.GetDatabase("test");

        var collection = database.GetCollection<Entity>("entities");

        var entity = new Entity { Name = "Tom" };
        collection.InsertOneAsync(entity);
        var id = entity._id;          
    }
}

public class Entity
{
    public ObjectId _id { get; set; }
    public string Name { get; set; }
}

我的代码类程序 { static void Main(string [] args) { const string connectionString =“mongodb:// localhost:27017”; //使用连接字符串创建MongoClient对象 var client = new MongoClient(connectionString); //使用MongoClient访问服务器 var database = client.GetDatabase(“test”); var collection = database.GetCollection (“entities”); var entity = new Entity {Name =“Tom”}; collection.InsertOneAsync(实体); var id = entity._id; } } 公共类实体 { public ObjectId _id {get;组; } public string Name {get;组; } }

After successfully running the code above, I'm unable to find this record in the MongoDB database using this command:

成功运行上面的代码后,我无法使用此命令在MongoDB数据库中找到此记录:
```
db.entities.find().pretty()
```

What's wrong with my code?

我的代码出了什么问题?

3 个解决方案

#1

This is the method I created for inserting data into MongoDB, which is working fine now.

这是我创建的用于将数据插入MongoDB的方法,现在工作正常。

static async void DoSomethingAsync()
{
    const string connectionString = "mongodb://localhost:27017";

    // Create a MongoClient object by using the connection string
    var client = new MongoClient(connectionString);

    //Use the MongoClient to access the server
    var database = client.GetDatabase("test");

    //get mongodb collection
    var collection = database.GetCollection<Entity>("entities");
    await collection.InsertOneAsync(new Entity { Name = "Jack" });
}

#2

The reason is you need to wait to get the store to create the document. In this case collection.InsertOneAsync(entity); the execution exit before creating the document.

原因是您需要等待商店创建文档。在这种情况下collection.InsertOneAsync(entity);创建文档之前的执行退出。

Either Console.ReadKey() or collection.InsertOneAsync(entiry).Wait() or any other form of stopping exit for a fraction of second will do the trick.

Console.ReadKey()或collection.InsertOneAsync(entiry).Wait()或任何其他形式的停止退出一小段时间都可以解决问题。

#3

for .net 4.5 and greater versions and mongodriver 2x series follow the below code

对于.net 4.5及更高版本和mongodriver 2x系列,请遵循以下代码

var Client = new MongoClient();
var MongoDB = Client.GetDatabase("shop");
var Collec = MongoDB.GetCollection<BsonDocument>("computers");
var documnt = new BsonDocument
{
    {"Brand","Dell"},
    {"Price","400"},
    {"Ram","8GB"},
    {"HardDisk","1TB"},
    {"Screen","16inch"}
};
Collec.InsertOneAsync(documnt);
Console.ReadLine();

Reference from inmongodb

来自inmongodb的参考

#1