如何从 appsetting.json 读取 json 数据

Question

我想使用 blazor C# 从 appsetting.json 文件中读取一些数据。这是代码

{
  "Logging": {
    "LogLevel": {
      "Default": "Information",
      "Microsoft": "Warning",
      "Microsoft.Hosting.Lifetime": "Information"
    }
  },
  "AllowedHosts": "*",
  "ConnectionStrings": {
    "Test1": "Server=KHITGFDB;Database=TESTDB;Trusted_Connection=True;",
    "AuditDatabase": "Server=KHITGGF;Database=TISA;Trusted_Connection=True;",
    "EpriseDatabase": "Server=BHUIL,50397;Database=DUON;User ID=yHISNeBHID;Password=HGTUKHJSAC;"
  },
  "EmailRecipients": "a@test.com;b@test.com:c@test.com"
}

我想从 appsetting.json 读取 EmailRecipients 到 text.razor 页面。下面是代码。

Test.razor

 public void saveShareFeedback()
    {
        if (feedback.Rating == 0) return;

        feedback.UserId = "Tester";
        feedback.EmailRecipients = "a@test.com;b@test.com:c@test.com";


        var ack = _db.SaveFeedbackData(feedback);
        if (ack == true)
        {
            isSharedFeedback = true;
            msg = "Thanks for sharing your feedback...";
            feedback = new Feedback();
        }

    }

Answer 1

我希望这是服务器端 Blazor。注入IConfiguration。您可以使用它来获取 appsettings.json 中存储的任何值（如果该值未被命令行参数覆盖。）

string emailRecipients = _configuration["EmailRecipients"];

public class SomeClass
{
   private readonly IConfiguration _configuration;

   public SomneClass(IConfiguration configuration)
   {
       _configuration = configuration;
   }
}