在 Laravel 6 的中间件中注入依赖项的实现

<pre class="wp-block-syntaxhighlighter-code">

<?php

namespace App\Http\Middleware;

use App\Services\ThemeService;
use Carbon\Carbon;
use Closure;
use Illuminate\Support\Facades\Route;

class CurrentTheme
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @return mixed
     */
    public function handle($request, Closure $next)
    {
        $service = app(ThemeService::class);

		// ...

		$theme = $service->getByName($decrypt['name']);

        // ...

        return $next($request);
    }
}


</pre>

    protected $themeService;

    public function __construct(ThemeService $themeService)
    {
        $this->themeService = $themeService;
    }

    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @return mixed
     */
    public function handle($request, Closure $next)
    {

        $theme = $this->themeService->getByName('vogue');
	}