Question

我非常喜欢使用de default appsettings.json的Asp.Net vNext的新配置功能

但是当我将网站发布为Azure Web App时，我想更改该文件的值。

旧的web.config appsettings很容易更改并配置环境中的属性。

你知道怎么做吗？我更喜欢使用默认提供程序，而不是创建自定义配置提供程序。

谢谢！

Answer 1

如果在Azure门户中设置应用程序设置，它们将在运行时成为环境变量，并且应该被ASP.NET vNext运行时选中。因此，您无需物理修改appsettings.json即可实现此目的。

Answer 2

It worked very well David! Thank you!

Here a sample to help our friends with the same question:

startup.cs

public Startup(IHostingEnvironment env)
    {
        // Set up configuration sources.
        var builder = new ConfigurationBuilder()
            .AddJsonFile("appsettings.json")
            .AddJsonFile($"appsettings.{env.EnvironmentName}.json", optional: true);

        if (env.IsDevelopment())
        {
            // For more details on using the user secret store see http://go.microsoft.com/fwlink/?LinkID=532709
            builder.AddUserSecrets();
        }

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

public void ConfigureServices(IServiceCollection services)
    {
        // Add framework services.
        services.AddEntityFramework()
            .AddSqlServer()
            .AddDbContext<ApplicationDbContext>(options =>
                options.UseSqlServer(Configuration["Data:DefaultConnection:ConnectionString"]));

        services.AddIdentity<ApplicationUser, IdentityRole>()
            .AddEntityFrameworkStores<ApplicationDbContext>()
            .AddDefaultTokenProviders();

        services.AddMvc();

        // Add application services.
        services.AddTransient<IEmailSender, AuthMessageSender>();
        services.AddTransient<ISmsSender, AuthMessageSender>();

        **services.AddInstance<IConfiguration>(Configuration);**
    }

HomeController.cs

IConfiguration _configuration;

    public HomeController(IConfiguration configuration)
    {
        this._configuration = configuration;

    }
    public IActionResult Index()
    {

        ViewBag.key = _configuration["Data:DefaultConnection:ConnectionString"];
        return View();
    }

Index.cshtml

@{
ViewData["Title"] = "Home Page";

} @ViewBag.key

To see the difference, run the web app on localhost and on an azure web app changing the appsetting Data:DefaultConnection:ConnectionString

Best,

Azure上的Asp.Net VNext应用程序设置

2 个答案: