asp.net mvc 多语言环境配置

新建资源文件夹

• 添加 ASP.NET 文件夹
• 选择 App_GlobalResources

新建资源文件

• language.resx
• language.en.resx

创建了中文、英文两个语言的资源文件，中文是程序的默认语言。

然后是 language.en.resx，中间的“en”是英语的 Culture Name。如果你需要法语，那么你只需要再创建language.fr.resx文件，Visual Studio 会自动生成对应的类。

设置资源文件属性

添加过滤器

using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Threading;
using System.Web;
using System.Web.Mvc;

namespace WebApplication1
{
    public class LocalizationAttribute: ActionFilterAttribute
    {
        public override void OnActionExecuting(ActionExecutingContext filterContext) 
        {
            if (filterContext.RouteData.Values["lang"] != null &&
               !string.IsNullOrWhiteSpace(filterContext.RouteData.Values["lang"].ToString()))
            {
                ///从路由数据(url)里设置语言
                var lang = filterContext.RouteData.Values["lang"].ToString();
                Thread.CurrentThread.CurrentUICulture = CultureInfo.CreateSpecificCulture(lang);
            }
            else
            {
                ///从cookie里读取语言设置
                var cookie = filterContext.HttpContext.Request.Cookies["ShaunXu.MvcLocalization.CurrentUICulture"];
                var langHeader = string.Empty;
                if (cookie != null)
                {
                    ///根据cookie设置语言
                    langHeader = cookie.Value;
                    Thread.CurrentThread.CurrentUICulture = CultureInfo.CreateSpecificCulture(langHeader);
                }
                else
                {
                    ///如果读取cookie失败则设置默认语言
                    langHeader = filterContext.HttpContext.Request.UserLanguages[0];
                    Thread.CurrentThread.CurrentUICulture = CultureInfo.CreateSpecificCulture(langHeader);
                }
                ///把语言值设置到路由值里
                filterContext.RouteData.Values["lang"] = langHeader;
            }

            /// 把设置保存进cookie
            HttpCookie _cookie = new HttpCookie("ShaunXu.MvcLocalization.CurrentUICulture", Thread.CurrentThread.CurrentUICulture.Name);
            _cookie.Expires = DateTime.Now.AddYears(1);
            filterContext.HttpContext.Response.SetCookie(_cookie);

            base.OnActionExecuting(filterContext);
        }
    }
}

添加过滤器

filters.Add(new LocalizationAttribute());

添加路由

routes.MapRoute(
    "Localization", // 路由名称
    "{lang}/{controller}/{action}/{id}", // 带有参数的 URL
    new { controller = "Home", action = "Index", id = UrlParameter.Optional }//参数默认值
);

访问资源

ViewBag.name = language.name;