[英]How to insert data into a mongodb collection using the c# 2.0 driver?
MongoClient
连接到MongoDB https://github.com/mongodb/mongo-csharp-driver/releases/tag/v2.0.0-rc0
我的代码
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; } }
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()
我的代码出了什么问题?
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" });
}
原因是您需要等待商店才能创建文档。 在这种情况下collection.InsertOneAsync(entity); 创建文档之前的执行退出。
Console.ReadKey()或collection.InsertOneAsync(entiry).Wait()或任何其他形式的停止退出几分之一秒都可以解决问题。
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();
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