.NET Core MVC RequestLocalization忽略DefaultRequestCulture

Startup.cs

public void ConfigureServices(IServiceCollection services)
{
    services.AddViewLocalization(LanguageViewLocationExpanderFormat.Suffix,opts =>
                                     {
                                         opts.ResourcesPath = "Resources";
                                     });
}


public void Configure(IApplicationBuilder app,IHostingEnvironment env,ILoggerFactory loggerFactory)
{
     var english = "en-US";
     var englishRequestCulture = new RequestCulture(culture: english,uiCulture: english);
     var supportedCultures = new List<CultureInfo>
                         {
                             new CultureInfo("en-US"),new CultureInfo("es-ES")
                         };

     var options = new RequestLocalizationOptions
            {
                DefaultRequestCulture = englishRequestCulture,SupportedCultures = supportedCultures,SupportedUICultures = supportedCultures
            };

     app.UseRequestLocalization(options);
     app.UseMvc();
}

当将culture = en-US或culture = es-ES作为查询字符串参数传递时,这非常有效.我的期望是,当没有提供文化时,默认文化应该是en-US.但是,当我不提供culture参数时,我的视图默认为es-ES.我已确认所有其他本地化提供商也默认为en-US.

我还应该注意到,我尝试通过ConfigureServices()进行本地化,但是根本无法使其正常运行：

services.Configure<RequestLocalizationOptions>(
             options =>
             {
                 var supportedCultures = new List<CultureInfo>
                     {
                         new CultureInfo("en-US"),new CultureInfo("es-ES")
                     };

                 options.DefaultRequestCulture = new RequestCulture(culture: "en-US",uiCulture: "en-US");
                 options.SupportedCultures = supportedCultures;
                 options.SupportedUICultures = supportedCultures;
             });