在Play框架2.1.1中更改模板中文本的语言 [英] Change language of text in template in play framework 2.1.1

问题描述

我希望应用程序的用户可以更改我的play2(播放2.1.1，scala 2.10.1)Web应用程序中的语言.我在i18n的模板中使用@ Messages.get(...).

I want the user of the application can change the language in my play2 (play 2.1.1, scala 2.10.1) web application. I use @Messages.get(...) in my templates for i18n.

我有

application.langs="en,ru"

在application.conf中.我将"en"或"ru"传递给该方法:

in application.conf. I pass "en" or "ru" to that method:

def index = Action {
   Ok(views.html.index())
}

def changeLanguage(lang:String) = Action {
  implicit request =>
    Logger.logger.debug("Change user lang to : " + lang)
    val referrer = request.headers.get(REFERER).getOrElse(HOME_URL)
    Redirect(referrer).withLang(Lang(lang))
}

路线:

GET     /                           controllers.Application.index
GET     /index                      controllers.Application.changeLanguage(lang ?= "ru")

模板串(views.html.index):

the template bunch (views.html.index):

@()(implicit l: Lang)

@import play.i18n.Messages

...

<a href="/about">@Messages.get("about")</li>

...

<a href="index?lang=ru" id="ru"></a>
<a href="index?lang=en" id="en"></a>
...

重定向页面后，我用相同的语言看到它. :(

After redirecting the page, I see it on the same language. :(

有很多老答案:我的模板中的隐式语言参数不起作用，也无法通过withLang(...)方法调用进行重定向或操作.这么长时间没有一个好的解决方案?

I was read many old answers: implicit language parameter in my template does not work, redirect or action with withLang(...) method call too. Did not have a good solution so long time?

推荐答案

我成功了，所以做了一些更改.在应用程序代码中(没有请求实例，播放不知道从何处获取该语言的Cookie?):

I made it work, so there are my changes. In app code (without an request instance play does not know where to get the cookie with the language?):

def index = Action {
 implicit request=>
   Ok(views.html.index())
}

并在模板中(play.api.i18n自动导入):

And in the template (play.api.i18n imports automatically):

@()(implicit l: Lang)

...

<a href="/about">@Messages("about")</li>

...

<a href="index?lang=ru" id="ru"></a>
<a href="index?lang=en" id="en"></a>
...

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