从ASP.NET CORE Web应用程序中的appsettings.json加载Hangfire配置

Question

我正在尝试将Hangfire与SQL Server配合使用，从appsettings.json文件中读取连接字符串。没用 仅当我将连接字符串提供给UseSqlServerStorage方法时，它才起作用。

这是appsettings.json：

{
  "ConnectionStrings": {
    "HangfireDemo": "Data Source=VSQL64;Initial Catalog=HangfireDemo;Integrated Security=SSPI;"
  },
  "Logging": {
    "IncludeScopes": false,
    "LogLevel": {
      "Default": "Debug",
      "System": "Information",
      "Microsoft": "Information"
    }
  }
}  

这是在Startup.ConfigureServices中配置Hangfire的行：

services.AddHangfire(configuration => configuration.UseSqlServerStorage("Data Source=VSQL64;Initial Catalog=HangfireDemo;Integrated Security=SSPI;"));  

如果我在UseSqlServerStorage方法中编写“ HangfireDemo” ，则无法使用。此方法中只有完整的连接字符串有效。
如何仅提供连接字符串名称？

Answer 1

您应该可以执行以下操作：

public Startup(IHostingEnvironment env)
{
    var builder = new ConfigurationBuilder()
        .SetBasePath(env.ContentRootPath)
        .AddJsonFile("appsettings.json", optional: true, reloadOnChange: true)
        .AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true);


    builder.AddEnvironmentVariables();
    Configuration = builder.Build();

}


public IConfigurationRoot Configuration { get; }

public void ConfigureServices(IServiceCollection services)
{
    services.AddHangfire(configuration => 
    configuration.UseSqlServerStorage(Configuration.GetConnectionString("HangfireDemo"))
    );  

}