我已经将项目从.Net Core 2.2升级到.Net Core 3.0。
在尝试解决所有警告和错误之后，我现在试图为该警告的解决方案提供资金：
'IStringLocalizer.WithCulture(CultureInfo)' is obsolete: 'This method is obsolete.
Use `CurrentCulture` and `CurrentUICulture` instead.'
我正在使用它来更改每个登录用户的网站语言。
我有此实现可更改每个用户的网站文化：
public class CultureLocalizer : ICultureLocalizer
{
private readonly IStringLocalizer localizer;
public CultureLocalizer(IStringLocalizerFactory factory)
{
var type = typeof(Resources.PageResources);
var assemblyName = new AssemblyName(type.GetTypeInfo().Assembly.FullName);
localizer = factory.Create("PageResources", assemblyName.Name);
}
// if we have formatted string we can provide arguments
// e.g.: @Localizer.Text("Hello {0}", User.Name)
public LocalizedString Get(string key, params string[] arguments)
{
return arguments == null ? localizer[key] : localizer[key, arguments];
}
public LocalizedString Get(Enum key, params string[] arguments)
{
return arguments == null ? localizer[key.ToString()] : localizer[key.ToString(), arguments];
}
public LocalizedString Get(CultureInfo culture, string key, params string[] arguments)
{
// This is obsolete
return arguments == null ? localizer.WithCulture(culture)[key] : localizer.WithCulture(culture)[key, arguments];
}
public LocalizedString Get(CultureInfo culture, Enum key, params string[] arguments)
{
// This is obsolete
return arguments == null ? localizer.WithCulture(culture)[key.ToString()] : localizer.WithCulture(culture)[key.ToString(), arguments];
}
}
这是伪类，仅保存翻译的.resx文件：
// dummy class for grouping localization resources
public class PageResources
{
}
除了似乎没有解决方案的discussion on github之外，我在网络上找不到任何有关如何解决此警告的信息。
还有其他人偶然发现此警告并找到解决方案吗？
参考方案
已经在其中提到了源代码here
/// <summary>
/// Creates a new <see cref="IStringLocalizer"/> for a specific <see cref="CultureInfo"/>.
/// </summary>
/// <param name="culture">The <see cref="CultureInfo"/> to use.</param>
/// <returns>A culture-specific <see cref="IStringLocalizer"/>.</returns>
[Obsolete("This method is obsolete. Use `CurrentCulture` and `CurrentUICulture` instead.")]
IStringLocalizer WithCulture(CultureInfo culture);
这是它们在.Net Core 3.0中的用法
public static void Main()
{
// Display the name of the current thread culture.
Console.WriteLine("CurrentCulture is {0}.", CultureInfo.CurrentCulture.Name);
// Change the current culture to th-TH.
CultureInfo.CurrentCulture = new CultureInfo("th-TH", false);
Console.WriteLine("CurrentCulture is now {0}.", CultureInfo.CurrentCulture.Name);
// Display the name of the current UI culture.
Console.WriteLine("CurrentUICulture is {0}.", CultureInfo.CurrentUICulture.Name);
// Change the current UI culture to ja-JP.
CultureInfo.CurrentUICulture = new CultureInfo( "ja-JP", false );
Console.WriteLine("CurrentUICulture is now {0}.", CultureInfo.CurrentUICulture.Name);
}
更新：此方法可以解决，直到我们可以从Microsoft正式宣布为止
您可以创建这样的服务
public class LocalizationService
{
private readonly IStringLocalizer _localizer;
public LocalizationService(IStringLocalizerFactory factory)
{
var type = typeof(SharedResource);
var assemblyName = new AssemblyName(type.GetTypeInfo().Assembly.FullName);
_localizer = factory.Create("SharedResource", assemblyName.Name);
}
public LocalizedString GetLocalizedHtmlString(string key)
{
return _localizer[key];
}
}
然后在您的startup.cs中
public class Startup
{
public Startup(IConfiguration configuration)
{
Configuration = configuration;
}
public IConfiguration Configuration { get; }
// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.AddScoped<LocalizationService>();
services.AddLocalization(options => options.ResourcesPath = "Resources");
services.Configure<RequestLocalizationOptions>(options =>
{
var supportedCultures = new[]
{
new CultureInfo("en"),
new CultureInfo("nl")
};
options.DefaultRequestCulture = new RequestCulture(culture: "en", uiCulture: "en");
options.SupportedCultures = supportedCultures;
options.SupportedUICultures = supportedCultures;
});
services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_2)
.AddDataAnnotationsLocalization(options =>
{
options.DataAnnotationLocalizerProvider = (type, factory) =>
{
var assemblyName = new AssemblyName(typeof(SharedResource).GetTypeInfo().Assembly.FullName);
return factory.Create("SharedResource", assemblyName.Name);
};
});
}
// This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
}
else
{
app.UseExceptionHandler("/Home/Error");
}
var localizationOption = app.ApplicationServices.GetService<IOptions<RequestLocalizationOptions>>();
app.UseRequestLocalization(localizationOption.Value);
app.UseStaticFiles();
app.UseCookiePolicy();
app.UseMvc(routes =>
{
routes.MapRoute(
name: "default",
template: "{controller=Home}/{action=Index}/{id?}");
});
}
}
您可以查看我的完整代码here
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