laravel构建多语言系统

多语言切换

config/app.php 中 locale 中默认为 en

'locale' => 'zh_CN',　

新建 LanguageController 用于切换语言

namespace App\Http\Controllers;

class LanguageController extends Controller
{
    public function setlocale()
    {
        $lang = session('language');
        if ($lang == 'zh_CN') {
            session(['language' => 'en']);
        } else {
            session(['language' => 'zh_CN']);
        }
        return view('lang');
    }
}

添加路由

Route::get('lang', 'LanguageController@setlocale')->name('lang');

App::setLocale 仅作用于当次请求，新建 Language 中间件用于拦截请求。

namespace App\Http\Middleware;

use Closure;
use Illuminate\Support\Facades\App;

class Language
{
    public function handle($request, Closure $next)
    {
        if (session()->has('language')) {
            App::setLocale(session('language'));
        } else {
            session(['language' => App::getLocale()]);
        }
        return $next($request);
    }
}

将 Language 中间件添加到中间件组中

namespace App\Http;

use Illuminate\Foundation\Http\Kernel as HttpKernel;

class Kernel extends HttpKernel
{
    protected $middleware = [
            ....
    ];

    protected $middlewareGroups = [
        'web' => [
            ...
            \App\Http\Middleware\Language::class
        ],

        'api' => [
           ...
        ],
    ];

    protected $routeMiddleware = [
       ....
    ];
}

这样访问任何路由都会执行 Language 中间件中 handle() 的内容。

resources/lang 目录下比照 en 文件夹建立对应的语言包，blade 页面访问使用 {{__('语言文件夹下文件名.key名称')}}