.net core中读取配置文件

1）先看丑陋的方法

读取 appsettings.json   然后在 Startup 的 ConfigureServices() 方法中进行注入：

public IConfigurationRoot Configuration { get; }

public void ConfigureServices(IServiceCollection services)
{
    services.AddSingleton<IConfiguration>(Configuration);
}
 控制器中读取

public class HomeController : Controller
{
private readonly IConfiguration _configuration;
public HomeController(IConfiguration configuration)
{
_configuration = configuration;

}

读取到AppSettings下的子节点 的所有key

IConfigurationSection section = _configuration.GetSection("AppSettings");
List<string> list = new List<string>();
var childes = section.GetChildren();
foreach (var configSection in childes)
{

var conKey =configSection.Key;

}

其他需求可以参考http://www.cnblogs.com/dudu/p/6828045.html