ASP.NET 5.0 - 如何启动并运行 CookieRequestCultureProvider

Posted 2023-03-27

【中文标题】ASP.NET 5.0 - 如何启动并运行 CookieRequestCultureProvider

【英文标题】：ASP.NET 5.0 - How to get CookieRequestCultureProvider up and running

【发布时间】：2021-09-27 18:37:08

【问题描述】：

本地化 - 设置

我无法使用 cookie 使本地化工作。我很高兴了解如何最终整合这项技术。不得不说，我是开发者世界的新手，为了自己解决这个问题，我尝试研究了互联网上的所有方法。

到目前为止，Startup.cs 中的默认设置对我来说是可以理解的。在其他课程中，我必须重新理解。我目前不知道如何以及在何处使用 CookieRequestCultureProvider 类来使网站的 cookie 功能正常工作。

提前致谢。

PS：我参与了以下教程。https://www.mikesdotnetting.com/article/345/localisation-in-asp-net-core-razor-pages-cultureshttps://www.mikesdotnetting.com/article/346/using-resource-files-in-razor-pages-localisation

以下是我目前的设置：

dotnet --info

.NET SDK (reflecting any global.json):
 Version:   5.0.301
 Commit:    ef17233f86

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.19043
 OS Platform: Windows
 RID:         win10-x64
 Base Path:   C:\Program Files\dotnet\sdk\5.0.301\

Host (useful for support):
  Version: 5.0.7
  Commit:  556582d964

.NET SDKs installed:
  5.0.301 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.App 3.1.16 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 5.0.7 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 3.1.16 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 5.0.7 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.WindowsDesktop.App 3.1.16 [C:\ProgramFiles\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 5.0.7 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

startup.cs | ConfigureServices

public void ConfigureServices(IServiceCollection services)

    // Localization - adding resource path
    services.AddLocalization(options => 
    
        // We will put our translations in a folder called Resources
        options.ResourcesPath = "Resources";
    );

    // Localization - look up MS docs
    // Add framework services.
    services.AddMvc()
        // adding localization for views
        .AddViewLocalization()
        // e.g. [Display(Name = "Remember Me?")]
        .AddDataAnnotationsLocalization(options => 
        
            options.DataAnnotationLocalizerProvider = (type, factory) =>
            
                var assemblyName = new AssemblyName(typeof(CommonResources).GetTypeInfo().Assembly.FullName);
                return factory.Create(nameof(CommonResources), assemblyName.Name);
            ;
        );

    // we are configuring the localization service to support a list of provided cultures.
    services.Configure<RequestLocalizationOptions>(options =>
    
        // Localization - the list of supported cultures
        // combination of parent language and region
        var supportedCultures = new List<CultureInfo>
        
            new CultureInfo("de-DE"),
            new CultureInfo("en-GB"),
            new CultureInfo("nl-NL")
        ;
        // State what the default culture for your application is. This will be used if no
        // specific culture can be determined for a given request.
        options.DefaultRequestCulture = new RequestCulture(
            culture: supportedCultures[0],
            uiCulture: supportedCultures[0]);

        // You must explicitly state which cultures your application supports.
        // These are the cultures the app supports for formatting numbers, dates, etc.
        options.SupportedCultures = supportedCultures;

        // UI strings that we have localized
        options.SupportedUICultures = supportedCultures;
    );

    ...

startup.cs | Configure

public void Configure(IApplicationBuilder app, IWebHostEnvironment env, IServiceProvider services)

   ...
app.UseRouting();

    // Localization - middleware
    // 1.QueryStringRequestCultureProvider – culture and ui - culture are passed in the query string.
    // 2.CookieRequestCultureProvider – culture is set in the ASP.NET Core culture cookie.
    // 3.AcceptLanguageHeaderRequestCultureProvider – which gets the culture from the browser’s language set by the user.
    // specify that globalization is being used in the pipeline.
    var locOptions = app.ApplicationServices.GetService<IOptions<RequestLocalizationOptions>>();
    app.UseRequestLocalization(locOptions.Value);

   ...

   app.UseEndpoints(endpoints =>
    
        endpoints.MapRazorPages();
    );

Culture Switcher Razor Component

<div>
    <form id="culture-switcher">
        <select name="culture" id="culture-options">
            <option></option>
            @foreach (var culture in Model.SupportedCultures)
            
                <option value="@culture.Name" selected="@(Model.CurrentUICulture.Name == culture.Name)">@culture.ThreeLetterWindowsLanguageName</option>
            
        </select>
    </form>
</div>

<script>
    document.getElementById("culture-options").addEventListener("change", () => 
        document.getElementById("culture-switcher").submit();
    );
</script>

CommonLocalizationService.cs

using KarriereWebseiteRazor.Resources;
using Microsoft.Extensions.Localization;
using System.Reflection;

namespace KarriereWebseiteRazor.Services

    public class CommonLocalizationService
    
        private readonly IStringLocalizer _localizer;

        public CommonLocalizationService(IStringLocalizerFactory factory)
        
            var assemblyName = new AssemblyName(typeof(CommonResources).GetTypeInfo().Assembly.FullName);
            _localizer = factory.Create(nameof(CommonResources), assemblyName.Name);
        

        public string Get(string key)
        
            return _localizer[key];
        
    

【参考方案1】：

也许实现你想要的最简单的方法是更改​​ ViewComponent 中的 javascript 以设置 cookie：

const cultureOptions = document.getElementById("culture-options");
cultureOptions.addEventListener("change", () => 
    const culture = cultureOptions.value;
    document.cookie = `.AspNetCore.Culture=c=$culture|uic=$culture`;
    location.reload()
);

【讨论】：

谢谢迈克。像魅力一样工作。