MVC4多语言IHttpModule实现

2023-08-20 08:03:28

最近项目需要多语言环境了.

由于项目页面较多,逐个Action去读取资源文件不大现实.就想到了使用 IHttpModule配合MVC的路由规则来实现.

首先创建以个mvc4的应用程序,
添加资源文件夹(自定义)Lang ,
然后在此文件夹下添加Home.Index.resx文件,
资源的访问修饰符用public
再添加Home.Index.en-us.resx文件
添加个字符串TEST
再添加Home.Index.zh-cn.resx文件
添加个字符串TEST

在home/index的视图中添加如下代码:
@MVC4多语言IHttpModule实现.Lang命名空间

Home_Index生成的类名

TEST要国际化的字段

注意: 只有Home.Index.resx会生成一个叫Home_Index的类,其他无类

然后添加以个实现了IHttpModule的类,暂且命名为MyModule
此类需要实现2个方法
public void Dispose() { } 即可
public void Init(HttpApplication context)方法

MyModule类的具体实现:

using System;

using System.Collections.Generic;

using System.Globalization;

using System.Linq;

using System.Threading;

using System.Web;

using System.Web.Routing;

namespace MVC4多语言IHttpModule实现.Lang

{

    public class MyModule:IHttpModule

    {

        private CultureInfo currentCulture;

        private CultureInfo currentUICulture;

        public void Dispose() { }

        public void Init(HttpApplication context)

        {

            context.BeginRequest += SetCurrentCulture;

            context.EndRequest += RecoverCulture;

        }

        private void SetCurrentCulture(object sender, EventArgs args)

        {

            currentCulture = Thread.CurrentThread.CurrentCulture;

            currentUICulture = Thread.CurrentThread.CurrentUICulture;

            HttpContextBase contextWrapper = new HttpContextWrapper(HttpContext.Current);

            RouteData routeData = RouteTable.Routes.GetRouteData(contextWrapper);

            if (routeData == null)

            {

                return;

            }

            object culture;

            if (routeData.Values.TryGetValue("lang", out culture))

            {

                try

                {

                    Thread.CurrentThread.CurrentCulture = new CultureInfo(culture.ToString());

                    Thread.CurrentThread.CurrentUICulture = new CultureInfo(culture.ToString());

                }

                catch

                { }

            }

        }

        private void RecoverCulture(object sender, EventArgs args)

        {

            Thread.CurrentThread.CurrentCulture = currentCulture;

            Thread.CurrentThread.CurrentUICulture = currentUICulture;

        }

    }

}

然后添加路由规则:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.Http;

using System.Web.Mvc;

using System.Web.Optimization;

using System.Web.Routing;

namespace MVC4多语言IHttpModule实现

{

    // 注意: 如需啟用 IIS6 或 IIS7 傳統模式的說明，

    // 請造訪 http://go.microsoft.com/?LinkId=9394801

    public class MvcApplication : System.Web.HttpApplication

    {

        protected void Application_Start()

        {

            AreaRegistration.RegisterAllAreas();

            WebApiConfig.Register(GlobalConfiguration.Configuration);

            FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);

            RouteConfig.RegisterRoutes(RouteTable.Routes);//在此方法中添加路由规则

            BundleConfig.RegisterBundles(BundleTable.Bundles);

            AuthConfig.RegisterAuth();

        }

    }

}

RouteConfig.RegisterRoutes(RouteTable.Routes);//在此方法中添加路由规则

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.Mvc;

using System.Web.Routing;

namespace MVC4多语言IHttpModule实现

{

    public class RouteConfig

    {

        public static void RegisterRoutes(RouteCollection routes)

        {

            routes.IgnoreRoute("{resource}.axd/{*pathInfo}");

            routes.MapRoute(

               "Globalization", // 路由名称

               "{lang}/{controller}/{action}/{id}", // 带有参数的 URL

               new { lang = "zh", controller = "Home", action = "Index", id = UrlParameter.Optional }, // 参数默认值

               new { lang = "^[a-zA-Z]{2}(-[a-zA-Z]{2})?$" }    //参数约束

           );

            routes.MapRoute(

                name: "Default",

                url: "{controller}/{action}/{id}",

                defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }

            );

        }

    }

}

然后在配置文件中声明:
在web.config下的system.web下

<configuration>
    <system.web>
        <httpModules>
            <add name="MyModule" type="MyModule"/>
        </httpModules>
    </system.web>
</configuration>
事践显示这种声明注册方法在IIS7.0下，即win7下是不work的。
必须按如下声明：
<configuration>
    <system.webServer>
        <modules>
            <add name="MyModule" type="MyModule"/>
        </modules>
    </system.webServer>
</configuration>
参考： http://msdn.microsoft.com/zh-cn/library/ms227673