考虑实现一个完整的基于asp.net mvc的多语言解决方案，从路由到model再到view最后到数据库设计(先挖好坑，后面看能填多少)。
我所见过的多语言做得最好的网站莫过于微软的msdn了，就先从模仿它的路由开始
仅实现相同的url格式很简单，只要将默认的路由加上一个表示语言的变量就可以了
public static void RegisterRoutes(RouteCollection routes) {
//other routes
routes.MapRoute( name: "Default", url: "{culture}/{controller}/{action}/{id}", constraints: new { culture = "zh-cn|en-us" }, defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional } ); }
然后就可以通过类似 /zh-cn/home/index或/en-us/home/index 的url访问相应页面。然而仅是这样肯定没什么实际性的作用，之前浏览过很多多语言站点，发现url里面有代表语言的都是基本都是以zh或zh-cn代表中文，en或en-us代表English，这一定有什么联系；C#有一个表示区域信息的class CultureInfo，通过设置线程的区域信息来调整某些内容的默认展示方式，最常见的就是日期格式的显示。culture的值可参照 http://www1.cs.columbia.edu/~lok/csharp/refdocs/System.Globalization/types/CultureInfo.html，当然一个Website没人有精力去支持所有语言，可以通过mvc的路由去限制，上面限制了仅中文简体(zh-cn)和美式英语(en-us)。mvc执行过程中与culture有关的步骤大概有Controller激活(不确定)->Action的Model绑定->Action执行->View呈现，因此只要在asp.net为一个客户端请求调用一个线程到使用该线程执行Controller Action的这段过程中加入设置culture的操作就能达到目的，我用的则是ActionFilter：
using System; using System.Globalization; using System.Threading; using System.Web.Mvc; /************************************************************************************************************************************************ * Class Name : InternationalizationAttribute.cs * Create Date: Tue, Jan 12, 2016 * Last Update: Thur, Jan 12, 2016 * Description: Set Culture. learn from http://stackoverflow.com/questions/1560796/set-culture-in-an-asp-net-mvc-app. * Author : Cameron ************************************************************************************************************************************************/ [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false)] public sealed class InternationalizationAttribute : ActionFilterAttribute { public override void OnActionExecuting(ActionExecutingContext filterContext) { bool isSkipInternationalize = filterContext.ActionDescriptor.IsDefined(typeof(WithoutInternationalizationAttribute), inherit: true) || filterContext.ActionDescriptor.ControllerDescriptor.IsDefined(typeof(WithoutInternationalizationAttribute), inherit: true); if (!isSkipInternationalize) { string culture = (string)filterContext.RouteData.Values["culture"]; //if (string.IsNullOrEmpty(culture)) //{ // System.Web.HttpCookie cookieCulture = filterContext.HttpContext.Request.Cookies["culture"]; // if (cookieCulture == null) // filterContext.RouteData.Values.Add("culture", "zh-cn"); // else // filterContext.RouteData.Values.Add("culture", cookieCulture.Value); // filterContext.HttpContext.Response.RedirectToRoute("Default"); //} //else { //filterContext.RequestContext.HttpContext.User Thread.CurrentThread.CurrentCulture = CultureInfo.GetCultureInfo(culture); Thread.CurrentThread.CurrentUICulture = CultureInfo.GetCultureInfo(culture); //} } } } /// <summary> /// Actions and controllers with the WithoutInternationalization attribute are skipped by the InternationalizationAttribute. /// </summary> [AttributeUsage(AttributeTargets.Class | AttributeTargets.Method, AllowMultiple = false)] public sealed class WithoutInternationalizationAttribute : Attribute { }
相应controller代码：
[Internationalization] public class HomeController : Controller { public ActionResult Index() { return View(); } public ActionResult Login() { return View(); } [HttpPost] public ActionResult Login(LoginViewModel loginModel) { return View(); } [WithoutInternationalization] public ActionResult ChooseCulture(string culture, string returnUrl) { //string url = GetApplicationPath(HttpContext.Request) + "/aaaa/bbb?c=5"; //var request = new HttpRequest(null, Request.Url.AbsoluteUri, ""); //var response = new HttpResponse(new System.IO.StringWriter()); //var httpContext = new HttpContext(request, response); //var routeData = System.Web.Routing.RouteTable.Routes.GetRouteData(new HttpContextWrapper(httpContext)); //var values = routeData.Values; //HttpCookie cookieCulture = Request.Cookies["culture"]; //var originalCulture = RouteData.Values["culture"]; //if (cookieCulture == null) //{ // RouteData.Values.Add("culture", "zh-cn"); //} //else { //} //写得有点死，有待改进 if (!returnUrl.EndsWith("/")) returnUrl += "/"; if (!string.IsNullOrEmpty(returnUrl) && returnUrl.Length > 3 && returnUrl.StartsWith("/") && returnUrl.IndexOf("/", 1) > 0 && new string[] { "zh-cn", "en-us" }.Contains(returnUrl.Substring(1, returnUrl.IndexOf("/", 1) - 1))) returnUrl = $"/{culture}{returnUrl.Substring(returnUrl.IndexOf("/", 1))}"; else returnUrl = $"/{culture}{returnUrl}"; return Redirect(returnUrl); } }
Layout View 选择语言部分代码：
@using Resources <!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>@ViewBag.Title - @Resource1.my_app</title> @Styles.Render("~/Content/css") @Scripts.Render("~/bundles/modernizr") </head> <body> <div class="navbar navbar-inverse navbar-fixed-top"> <div class="container"> <div class="navbar-header"> <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse"> <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </button> @Html.ActionLink(Resource1.app_name, "Index", "Home", new { area = "" }, new { @class = "navbar-brand" }) </div> <div class="navbar-collapse collapse"> <ul class="nav navbar-nav"> <li>@Html.ActionLink(Resource1.home, "Index", "Home")</li> <li>@Html.ActionLink("中文", "ChooseCulture", new { culture = "zh-cn", returnUrl = Request.RawUrl })</li> <li>@Html.ActionLink("English", "ChooseCulture", new { culture = "en-us", returnUrl = Request.RawUrl })</li> </ul> <ul class="nav navbar-nav navbar-right"> <li>@Html.ActionLink(Resource1.Login, "Login", "Home")</li> </ul> </div> </div> </div> <div class="container body-content"> @RenderBody() <hr /> <footer> <p>© @DateTime.Now.Year - @Resource1.my_app</p> </footer> </div> @Scripts.Render("~/bundles/jquery") @Scripts.Render("~/bundles/bootstrap") @RenderSection("scripts", required: false) </body> </html>
This is my first bolg...
附上Artech大神的另一种实现方式,http://www.cnblogs.com/artech/archive/2012/05/04/localization-via-url-routing.html