正在 ASP.NET 核心网络应用中的 appsettings.json 加载 Hangfire 配置

Loading Hangfire configuration from appsettings.json in ASP.NET CORE web app

我正在尝试将 Hangfire 与 SQL 服务器一起使用,从 appsettings.json[=31= 读取连接字符串] 文件。它不起作用。只有当我向 UseSqlServerStorage 方法提供连接字符串时,它才有效。

这里是appsettings.json

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

这里是 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方法中写"HangfireDemo",是不行的。此方法中只有完整的连接字符串有效。
如何只提供连接字符串名称?

你应该可以这样做:

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"))
    );  

}