NET Core 3.1中如何在字符串本地化程序中正确使用资源文件？

这是有关如何在单独的项目中创建共享资源的完整工作解决方案：

在ProjectA中（SharedResource3_1在我的解决方案中）：

1.Shared使用UserMessagesclass创建Resources文件夹并使用Shared.UserMessages.en-US.resxfile创建文件夹（不知道为什么创建Shared.UserMessages.en-US.Designer.cs，但似乎没有用）：

UserMessages.cs：

namespace SharedResource3_1.Shared
{
    public class UserMessages
    {
    }
}

Shared.UserMessages.en-US.resx：

在ProjectB中（MvcCore3_1在我的解决方案中）：

1.将项目参考添加到ProjectA：

Right-clickProjectB Dependencies，Add Project Reference然后选择，然后选择ProjectA：

然后您可以获取如下参考：

2.Startup.cs：

public class Startup
{
    public Startup(IConfiguration configuration)
    {
        Configuration = configuration;
    }

    public IConfiguration Configuration { get; }

    public void ConfigureServices(IServiceCollection services)
    {
        services.AddControllersWithViews();

        //add this...
        LocalizationConfiguration.ConfigureLocalizationSettings(services);
    }
   
    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
    {
        //add this...
        LocalizationConfiguration.UseRequestLocalizationMiddleware(app);
        app.UseHttpsRedirection();
        app.UseStaticFiles();
        app.UseRouting();

        app.UseAuthorization();

        app.UseEndpoints(endpoints =>
        {
            endpoints.MapControllerRoute(
                name: "default",
                pattern: "{controller=Home}/{action=Index}/{id?}");
        });
    }
}

internal static class LocalizationConfiguration
{
    private const string ResourcesPath = "Resources";
    private const string DefaultCulture = "en-US";

    internal static IServiceCollection ConfigureLocalizationSettings(this IServiceCollection services) =>
        services
            .AddLocalization(options =>
                options.ResourcesPath = ResourcesPath);

    internal static IApplicationBuilder UseRequestLocalizationMiddleware(this IApplicationBuilder builder) =>
        builder
            .UseRequestLocalization(new RequestLocalizationOptions
            {
                DefaultRequestCulture = new RequestCulture(DefaultCulture),
                SupportedCultures = new List<CultureInfo>
                {
                new CultureInfo(DefaultCulture)
                }
            });
}

3.HomeController：

using SharedResource3_1.Shared;  //add the reference for the UserMessages in ProjectA

public class HomeController : Controller
{
    private readonly IStringLocalizer<UserMessages> _stringLocalizer;
    public HomeController(IStringLocalizer<UserMessages> stringLocalizer)
    {
        _stringLocalizer = stringLocalizer;
    }

    public IActionResult Index()
    {
        ViewBag.data = _stringLocalizer["cześć"]; //the key name should be the Name in your resx file...
        return View();
    }
}

结果：