ASP.NET Core WebAPI实现当地化(单资源文件)

在Startup ConfigureServices 注册当地化所必要的处事AddLocalization和 Configure<RequestLocalizationOptions>

public void ConfigureServices(IServiceCollection services) { services.AddLocalization(); services.Configure<RequestLocalizationOptions>(options => { var supportedCultures = new List<CultureInfo> { new CultureInfo("en-us"), new CultureInfo("zh-cn") }; options.DefaultRequestCulture = new RequestCulture(culture: "en-us", uiCulture: "en-us"); options.SupportedCultures = supportedCultures; options.SupportedUICultures = supportedCultures; options.RequestCultureProviders = new IRequestCultureProvider[] { new RouteDataRequestCultureProvider { IndexOfCulture = 1, IndexofUiCulture = 1 } }; }); services.Configure<RouteOptions>(options => { options.ConstraintMap.Add("culture", typeof(LanguageRouteConstraint)); }); services.AddControllers(); }

在Startup.cs类的Configure 要领中添加哀求当地化中间件。

var localizeOptions = app.ApplicationServices.GetService<IOptions<RequestLocalizationOptions>>(); app.UseRequestLocalization(localizeOptions.Value);

RequestCultureProvider 它行使简朴的委托来确定当前的当地化地区性，虽然我们还可以通过RequestCultureProvider自界说源的哀求地区信息好比说设置文件可能数据库都是可以的.可能说我们可以选用默认的一些方法让我们去获取到当前地区.

ASP.NET Core 当地化默认向我们提供了四个方法，可用于确定正在执行的哀求的当前地区性：

QueryStringRequestCultureProvider

CookieRequestCultureProvider

AcceptLanguageHeaderRequestCultureProvider

CustomRequestCultureProvider

如下所示我将通过路由的方法,去确定当前地区

public class RouteDataRequestCultureProvider : RequestCultureProvider { public int IndexOfCulture; public int IndexofUiCulture; public override Task<ProviderCultureResult> DetermineProviderCultureResult(HttpContext httpContext) { if (httpContext == null) throw new ArgumentNullException(nameof(httpContext)); string uiCulture; string culture = uiCulture = httpContext.Request.Path.Value.Split('http://www.jb51.net/')[IndexOfCulture]; var providerResultCulture = new ProviderCultureResult(culture, uiCulture); return Task.FromResult(providerResultCulture); } }

通过如下代码片断实现IRouteConstraint对路由做响应的束缚

public class LanguageRouteConstraint : IRouteConstraint { public bool Match(HttpContext httpContext, IRouter route, string routeKey, RouteValueDictionary values, RouteDirection routeDirection) { if (!values.ContainsKey("culture")) return false; var culture = values["culture"].ToString(); return culture == "en-us" || culture == "zh-cn"; } }

添加地区资源文件

注入IStringLocalizer<T>，StringLocalizer将通过转达的共享资源(T)的值映射到资源文件,然后将当地化按照字符串的名称从资源文件返反相应的值

[Route("{culture:culture}/[controller]")] [ApiController] public class HomeController : ControllerBase { private readonly IStringLocalizer<Resource> localizer; public HomeController(IStringLocalizer<Resource> localizer) { this.localizer = localizer; } public string Get() { return localizer["Home"]; } }

如下图所示

Reference

https://github.com/hueifeng/BlogSample/tree/master/src/LocalizationSingleResx

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