[英]ASP.NET Core Request Localization Options
这是我的自定义请求文化提供程序,如果 url 中没有指定文化(例如http://sypalo.com/ru或http://sypalo.com/en ),它将返回“en”作为默认文化。 我的想法是用用户浏览器中的默认语言显示网站,所以我正在寻找一种方法来确定它并返回它而不是: return Task.FromResult(new ProviderCultureResult("en", "en"));
services.Configure<RequestLocalizationOptions>(options =>
{
var supportedCultures = new List<CultureInfo>
{
new CultureInfo("en"),
new CultureInfo("ru")
};
options.DefaultRequestCulture = new RequestCulture(culture: "en", uiCulture: "en");
options.SupportedCultures = supportedCultures;
options.SupportedUICultures = supportedCultures;
options.RequestCultureProviders.Insert(0, new CustomRequestCultureProvider(context =>
{
var pathSegments = context.Request.Path.Value.Split('/');
if (pathSegments.Count() > 0)
if (supportedCultures.Select(x => x.TwoLetterISOLanguageName).Contains((pathSegments[1])))
return Task.FromResult(new ProviderCultureResult(pathSegments[1], pathSegments[1]));
return Task.FromResult(new ProviderCultureResult("en", "en"));
}));
});
您可以从当前Request
获取Accept-Language
标头并设置默认语言。 你的代码应该是这样的:
services.Configure<RequestLocalizationOptions>(options =>
{
//...
options.RequestCultureProviders.Insert(0, new CustomRequestCultureProvider(context =>
{
//...
var userLangs = context.Request.Headers["Accept-Language"].ToString();
var firstLang = userLangs.Split(',').FirstOrDefault();
var defaultLang = string.IsNullOrEmpty(firstLang) ? "en" : firstLang;
return Task.FromResult(new ProviderCultureResult(defaultLang, defaultLang));
}));
});
使用框架调用(ASP.NET Core)获取 Accept-Language 标头的另一种方法:
HttpContext.Request.GetTypedHeaders().AcceptLanguage
在您的public class Startup
:
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
//...
app.Use((context, next) =>
{
//get client prefered language
var userLangs = context.Request.Headers["Accept-Language"].ToString();
var firstLang = userLangs.Split(',').FirstOrDefault();
//set allowed alanguage
var lang = "en"; //default
switch (firstLang)
{
case "hy": //allowed
case "ru": //allowed
lang = firstLang;
break;
default:
//client language not supported
lang = "en"; //use our default
break;
}
//switch culture
Thread.CurrentThread.CurrentCulture = new System.Globalization.CultureInfo(lang);
Thread.CurrentThread.CurrentUICulture = Thread.CurrentThread.CurrentCulture;
//save for later use
context.Items["ClientLang"] = lang;
context.Items["ClientCulture"] = Thread.CurrentThread.CurrentUICulture.Name;
// Call the next delegate/middleware in the pipeline
return next();
});
//... then goes app.UseMvc etc..
}
作为附加选项,这是一个完整的解决方案: 通过 RequestCultureProviders 处理路由(URL)中的文化
作为一个选项,这里是 CustomRequestCultureProvider 的简化代码:
options.RequestCultureProviders.Insert(0, new CustomRequestCultureProvider(context =>
{
var lang = context.Request.GetTypedHeaders().AcceptLanguage.FirstOrDefault()?.Value.Value ?? Constants.Languages.EN_US;
return Task.FromResult(new ProviderCultureResult(lang, lang));
}));
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