NetCore gets the configuration in the appsetting.json file

1. 

using Microsoft.Extensions.Configuration

public class HomeController : Controller
    {
        
        public IConfiguration _configuration { get ; set ; }
         public HomeController (IConfiguration configuration)
        {
           
            _configuration = configuration;
           
        }
        public IActionResult Index()
        {              
            //Get the value of DefaultConnection as the key below the ConnectionStrings node in appsettings

var config = _configuration.GetSection("ConnectionStrings:DefaultConnection"); return View(); }

 

 

 

2. Write in srartup

public void ConfigureServices(IServiceCollection services)
{
services.AddMvc();

#regionGet database connection string


var builder = new ConfigurationBuilder();
builder.SetBasePath(Directory.GetCurrentDirectory());
builder.AddJsonFile("appsettings.json");
var connectionStringConfig = builder.Build();
var connectionString = connectionStringConfig["ConnectionStrings:DefaultConnection"];

services.AddDbContext<EFProjectContext>(options => options.UseMySQL(connectionString));



#endregion 

}