Dotnet core uses MongoDB for high-performance Nosql database operations. mongodbnosql

Dotnet core uses MongoDB for high-performance Nosql database operations. mongodbnosql

I haven't written a Blog for a long time. I watched the open-source Java Community drool every day, and I was so confused that I finally waited for the official release of dotnet core in March,

Looking at the dotnet community, it is also a thriving phenomenon. I don't want to bind Windows. I believe that the spring of dotneter is coming soon. I have been eager to try dotnet core for a long time. A new project on hand is also planning to use dotnet core for development. I just did my own research and shared my experience with MongoDB.

First, install VS Code, and install the C # plug-in, official website address, I put the link here https://code.visualstudio.com/, if not install the configuration, the guest will not send

In addition to the C # Language plug-in, we also need the nuget plug-in.

Extended management tool. The Nuget plug-in I installed is called. net core project manager.

After installation, restart VS code.

 

After downloading vs code on the official website of vs code, you will be instructed to create a dotnet core project. if you use that project, OK. if you do not do this, follow these steps to create a project.

1. Create a project folder

2. Enter the file you just created in the command line

3. Enter the command line: dotnet new

Is it easy to install the Mongodb driver.

Open command palette in vs code. You can press Shift + Ctrl + P to enter nuget. A prompt is displayed,

Select add new package. A new input box is displayed. Enter mongodb and press Enter.

Some options will appear,

Select the first one. MongoDB. Driver is the official Driver. A new dialog box will pop up to select the version. Note that you need to select the correct one.2.3.0-beta1 2.3.0-beta1 2.3.0-beta1 (three important things)Do not select 2.3.0-rc1. It takes a lot of time to start using the wrong version.

After the installation is complete, a restore prompt is displayed.

 

Install Mongodb and start the mongo service.

Mongodb official website address: https://www.mongodb.com/, execute the command:

mongod --dbpath c:\mongodata

Now, we are all ready for the environment.

Add the following two namespaces to the code file:

using MongoDB.Bson;
using MongoDB.Driver;

To perform data operations, first instance a Consumer Client

var client = new MongoClient("mongodb://127.0.0.1:27017");

Then create the database and collection

var database = client.GetDatabase("foo");
var collection = database.GetCollection<BsonDocument>("bar");

Then we can try to insert a piece of data. The Code is as follows:

var document = new BsonDocument
            {
                { "name", "SqlServer" },
                { "type", "Database" },
                { "count", 5 },
                { "info", new BsonDocument
                    {
                        { "x", 111 },
                        { "y", 222 }
                    }}
            };

Collection. InsertOne (document );

 

After the data is inserted, check whether the data is successfully inserted. You can Count the total number in the Collection.

var count = collection.Count(new BsonDocument());
Console.WriteLine("Collection contains {0} document.", count);

Try again

var result = collection.Find(new BsonDocument()).FirstOrDefault();
Console.WriteLine("I got the query result:");
Console.WriteLine(result);

Code is very simple, you try it on your own, Mongodb official website has a. net driver guide http://mongodb.github.io/mongo-csharp-driver/2.2/getting_started/quick_tour/