在mvc4中多语言建站的实例

news/2024/5/9 18:09:29/文章来源:https://blog.csdn.net/weixin_30268071/article/details/98769313

环境：vs2012 asp.net mvc4.

实现方式：resource 资源文件，根据路由规则中Lang参数来判断载入哪种语言方式

在网上找到了相关资料，顺便自己做了个练习，新建工程之类的步骤就免了，该注意的地方说明下，记着方便下次使用。

1：添加资源文件，记得设置资源文件的访问模式为public，不然默认是Internal,外面会访问不到：

2：添加路由规则，记得加在Default路由规则的前面，否则新规则没用，详细原因请参考这篇文章

 1 routes.Add(new Route(
 2                 "{lang}/{controller}/{action}/{id}",  3 new RouteValueDictionary(new {  4 lang = "en-US",//默认为E文  5 controller = "Account",  6 action = "Logon",  7 id = UrlParameter.Optional  8  }),  9 new MultiLangRouteHandler()//这个类主要是通过GetHttpHandler来取得当前Lang的值 10 ));

 1 public class MultiLangRouteHandler : MvcRouteHandler {
 2         protected override IHttpHandler GetHttpHandler(RequestContext requestContext) {  3 string lang = requestContext.RouteData.Values["lang"].ToString();  4  5 //Thread.CurrentThread.CurrentCulture = new CultureInfo(lang);  6 Thread.CurrentThread.CurrentUICulture = new CultureInfo(lang);  7  8 //return new MvcHandler(requestContext);  9 return base.GetHttpHandler(requestContext); 10  } 11 }

有关代码中的CurrentUICulture可以参考我上一篇文章，里面有详细解释。

3：中英文切换入口。

1  <div>
2  @{ 3  string controller = ViewContext.Controller.ValueProvider.GetValue("controller").RawValue.ToString(); 4  string action = ViewContext.Controller.ValueProvider.GetValue("action").RawValue.ToString(); 5  //string lang = ViewContext.Controller.ValueProvider.GetValue("lang").RawValue.ToString(); 6  } 7  @Html.ActionLink("中文", action, new { Controller = controller, lang = "zh-CN" }, new {@class="btn-a" }) 8  @Html.ActionLink("English", action, new { Controller = controller, lang = "en-US" }, new {@class="btn-a" }) 9 </div>

4：界面上普通文字的多语言

其实我有按照上面的那篇文章写测试程序，但是写死的资源文件并没有根据中英文来切换，我都不知道是不是哪里有问题，闷~，后来mvc群里面的朋友（无情水）介绍另外一篇文章，我参照着改写了下，在此说声ths...

public static class LangHelper {//界面普通文字的多语言public static string GetLangbyKey(this HtmlHelper htmlhelper, string key) {Type resourceType = (Thread.CurrentThread.CurrentUICulture.Name == "en-US") ? typeof(Resources.en_US) : typeof(Resources.zh_CN);PropertyInfo p = resourceType.GetProperty(key);if (p != null)return p.GetValue(null, null).ToString();elsereturn "undefined";}//js定义多语言弹出框public static string LangOutJsVar(this HtmlHelper htmlhelper, string key) {Type resourceType = (Thread.CurrentThread.CurrentUICulture.Name == "en-US") ? typeof(Resources.en_US) : typeof(Resources.zh_CN);PropertyInfo p = resourceType.GetProperty(key);if (p != null)return string.Format("var {0} = '{1}'", key, p.GetValue(null, null).ToString());elsereturn string.Format("var {0} = '{1}'", key, "undefined");}}

View页面调用直接用函数的方式。如：<h2>@Html.GetLangbyKey("LogonDisplay")</h2>

5：DisplayName 的多语言化

重新定义一LocalDisplayName属性，他继承自DisplayNameAttribute

public class LocalDisplayName : DisplayNameAttribute {private string _defaultName = "";public Type ResourceType {get { return (Thread.CurrentThread.CurrentUICulture.Name == "en-US") ? typeof(Resources.en_US) : typeof(Resources.zh_CN); }}public string ResourceName {get;set;}public LocalDisplayName(string defaultName) {_defaultName = defaultName;}public override string DisplayName {get {PropertyInfo p = ResourceType.GetProperty(ResourceName);if (p != null)return p.GetValue(null, null).ToString();elsereturn _defaultName;}}}

在Model类上就把Display属性换为LocalDisplayName

public class Account {[Required][LocalDisplayName("user name", ResourceName = "UserDisplay")]public string UserName { get; set; }[Required][LocalDisplayName("password", ResourceName = "PwdDisplay")]public string Pwd { get; set; }[Required][Compare("Pwd",ErrorMessageResourceName="ConfirmPwdErrorDisplay")][LocalDisplayName("confirm password", ResourceName = "ConfirmPwdDisplay")]public string ConfirmPwd { get; set; }[Required][LocalDisplayName("remember", ResourceName = "RemDisplay")]public bool Rememberme { get; set; }}

调用方式：<div>@Html.LabelFor(m => m.UserName)</div>

实现效果：