静态类中的Asp.Net Core配置 [英] Asp.Net Core configuration in static class

问题描述

我想从静态类中的appsettings.json文件读取url.我尝试过

I want to read url from my appsettings.json file within static class. I tried something like

private static string Url => ConfigurationManager.GetSection("Urls/SampleUrl").ToString();

但是每当我尝试调用 GetSection()方法时，我都会得到空值.

But whenever i try to call GetSection() method i get null value.

  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft": "Warning",
      "Microsoft.Hosting.Lifetime": "Information"
    }
  },
  "ConnectionStrings": {
    "cs1": "some string",
    "cs2": "other string"
  },
  "Urls": {
    "SampleUrl": "google.com"
  },
  "AllowedHosts": "*"

我只是想从appsettings中读取一些数据.根据文档，我不应该以某种方式注册我的标准artsettings.json文件，因为默认情况下，Program类中的 Host.CreateDefaultBuilder(args)会对我起作用.

I simply want to read some data from appsettings. According to docs i should not somehow register my standart appsettings.json file because Host.CreateDefaultBuilder(args) in Program class does it for me by default.

推荐答案

正如所提到的

As it mentioned here, you can add static property to your Startup.cs

public Startup(IConfiguration configuration)
{
    Configuration = configuration;
    StaticConfig = configuration;
}

public static IConfiguration StaticConfig { get; private set; }

并在静态类中使用:

var x = Startup.StaticConfig.GetSection("whatever");

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