如何连接到现有数据库？ .NET Core API和SQL Server 2012

Question

Good day!

I am struggling on how to connect existing database with existing data to my API project. And also how do I know if I'm already connected? I am using .NET Core 1.1 and my database is SQL Server 2012.

appsettings.json :

{
  "Logging": {
    "IncludeScopes": false,
    "LogLevel": {
      "Default": "Debug",
      "System": "Information",
      "Microsoft": "Information"
    }
  },
    "ConnectionStrings": {
      "DefaultConnection": "Server=.\\SQLEXPRESS;Database=;User Id=sa;Password=Passw0rd;MultipleActiveResultSets=True"
    }
  }
}

Startup.cs - ConfigureServices

public void ConfigureServices(IServiceCollection services)
{
    // Add framework services.
    services.AddMvc();

    services.AddDbContext<DefaultConnection>(
    options => options.UseSqlServer(
    Configuration.GetConnectionString("DefaultConnection")));
}

I am following this tutorial but it seems that this creates new database. http://www.mithunvp.com/aspnet-core-web-api-entity-framework-core/

Would highly appreciate all your comments/solutions/suggestions.

Thank you very much!

Answer 1

You need to add the name of the database into that line :

 "DefaultConnection": "Server=COGSOL-LAP13;Database=DATABASENAME;UserId=sa;Password=Passw0rd;MultipleActiveResultSets=True"

And as CodeCaster comment says, you should use the name of the server too

You also have a space between User and Id User Id should be

UserId