C＃Visual Studio，如何从AppSetting.json访问值？

Question

我想从appsetting.json文件访问值，我的问题还在于我在项目多个应用程序中都有，不允许将其重命名，我该如何解决该问题？ 也许用相对路径解决？

想要从tst -＆gt; src/api /.../ appsettings.json properties appsettings.json 谢谢！

Answer 1

.NET Core

var builder = new ConfigurationBuilder()
              .AddJsonFile(@"<path to appsettings.json>");

var configuration = builder.Build();
//  configuration["TAG DESIRED"]

---

.NET Framework

 using (var reader = new StreamReader(Directory.GetCurrentDirectory() + "/appsettings.json")) {
        Settings appSettings = JsonConvert.DeserializeObject<Settings>(reader.ReadToEnd());
    }

设置类必须与您的JSON结构匹配

 public class Settings
    {
        .. List of props to be bound.
    }

Answer 2

这对我有用！

var httpDirectory = Path.Combine(new DirectoryInfo(Environment.CurrentDirectory).Parent!.Parent!.Parent!.Parent!.Parent!.FullName,
    "src",
    "ApiGateways",
    "Web.Management",
    "Web.Management.HttpAggregator",
    "bin",
    "Debug",
    "net6.0",
    "appsettings.json"
);