Laravel 让route生成URL超链接不用每次都设置语言参数 i18n前缀locale

route('post.index', app()->getLocale());

URL::defaults(['locale' => $request->user()->locale]);

// app/Http/Middleware/SetLocaleMiddleware.php
namespace App\Http\Middleware;

use Closure;
use Illuminate\Support\Facades\URL;

class SetDefaultLocaleForUrls
{
    public function handle($request, Closure $next)
    {
        URL::defaults(['locale' => $request->user()->locale]);

        return $next($request);
    }
}

// app/Http/Kernel.php
class Kernel extends HttpKernel
{
...
    protected $middlewareAliases = [
	    ...
	    'setlocale' => \App\Http\Middleware\SetDefaultLocaleForUrls::class,
	    ...
	];
}

// routes/web.php
Route::group([
    'middleware' => [
        'setlocale'
    ],
    'prefix' => '{locale}',
], function (Router $router) {
    $router->get('/', function () {
        return view('welcome');
    });
});