Laravel - 语言切换器不工作

Laravael - Language switcher not working

我正在尝试以两种语言动态显示文本 - 英语或德语。但是我没有完成任务,因为没有任何反应。

我做了以下事情:

中间件:

 public function handle($request, Closure $next) {
    if (!\Session::has('locale')) {
        \Session::put('locale', \Config::get('app.locale'));
    }

    app()->setLocale(\Session::get('locale'));

    return $next($request);
 }

 }

控制器:

use App\Http\Requests;
use App\Http\Controllers\Controller;
use Session;
use App;
use Illuminate\Http\Request;
class LanguageController extends Controller {

protected $langs = ['en', 'de'];

public function changeLanguage($lang) {
    if (in_array($lang, $this->langs)) {
        App::setLocale($lang);
        Session::put('locale', $lang);
    }
    return redirect()->back();
}
}

内核:

protected $middleware = [
    \Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode::class,
    \Illuminate\Foundation\Http\Middleware\ValidatePostSize::class,
    \App\Http\Middleware\TrimStrings::class,
    \Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull::class,
    \App\Http\Middleware\TrustProxies::class,
    \App\Http\Middleware\LanguageMiddleware::class,
];

查看:

  <div class="dropdown">
        <button class="dropbtn">{{trans('translations.lang')}}</button>
        <div class="dropdown-content">
        @if(Session::get('locale')=='en')
            <a href="lang/de">Deutsch</a>
        @else
             <a href="lang/en">English</a>
        @endif
        </div>
</div>

路线:

Route::get('lang/{id}', 'LanguageController@changeLanguage');

使用Laravel 5.4

提前致谢:)

你可以这样定义中间件:

namespace App\Http\Middleware;

use Closure;

/**
 * Class LocaleMiddleware.
 */
class LocaleMiddleware
{
    /**
     * Handle an incoming request.
     *
     * @param \Illuminate\Http\Request $request
     * @param \Closure                 $next
     *
     * @return mixed
     */
protected $languages = ['en','de'];

public function handle($request, Closure $next)
{
    if(!session()->has('locale'))
    {
        session()->put('locale', $request->getPreferredLanguage($this->languages));
    }

    app()->setLocale(session('locale'));

    return $next($request);
    }
}

在您的控制器上创建更改方法

public function changeLanguage($languague)
{
    if(Session::has(locale)){
        session()->set('locale', $language);}
    else{
        session()->set('locale', 'en');
    }

    return redirect()->back();
    }

路线看起来像

Route::get('lang/{languague}', 'LanguageController@changeLanguage');

在您的路由命令中,您发送了 $id,但在您的控制器函数中,您输入的是 $lang 而不是 $id。可能会出现错误。

你必须拥有这个

public function changeLanguage($id) {