MVC4多语言IHttpModule实现

浏览数：43 / 时间：2015年06月09日

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;
        }
    }
}

View Code

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();
        }
    }
}

View Code

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 }
            );
        }
    }
}

View Code

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

完成后具体请参照下图: