How to automatically load custom classes in laravel 5.2?

Question

1. Define a class QrCode.php

under app\Libraires

<?php
/**
 * Created by PhpStorm.
 * User: AIMPER
 * Date: 2016/11/30
 * Time: 10:13
 */

namespace App\Libaries;
use Endroid\QrCode;
use Illuminate\Support\Facades\DB;

class QrCode{

    public static function generateQrCode($type = null, $id = null){
        $code = random_string(32,true);
        $create_date = time();
        $expires = 0;

        $qrcodeType = DB::table('qrcode_type')->where('id','=',$type)->select('code','params')-first();
        return $qrcodeType;

    }

}

2. Call the method of this class

...
use App\Libaries\QrCode;
class TestController extends Controller{
    public function index(){
        QrCode::generateQrCode(11,1);
    }
}

3. Error message

ReflectionException in Route.php line 286:
Class App\Libaries\QrCode does not exist

4. Solution attempt
I have used composer dump-autoload, but the class still cannot be loaded. How can I automatically load custom classes into the project?

Answer 1

Classes obtained through dependency injection in routing need to be registered with the container.

Answer 2

Check the settings of the composer.json file in the project root directory.

"autoload": {
    "files":[
        "app/helpers.php"
    ],
    "psr-4": {
        "App\": "app/"
    }
},

And the error occurred during the route definition process. You need to check the settings of route.php