是否可以在Laravels Kernel.php中注入接口？

Question

我目前正在重构我的Laravel 5项目,以便使用Repository Design Pattern.

我有一个创建的存储库接口和一个存储库类:

interface UserRepositoryInterface {
    [...]
}

class UserRepository implements UserRepositoryInterface
{
   [...]
}

然后在服务提供者类中添加了必要的绑定:

App::bind('App\Repositories\UserRepositoryInterface','App\Repositories\UserRepository');

并将接口注入到控制器构造函数中:

class UserController extends Controller
{
    /**
     * Create a new controller instance.
     *
     * @return void
     */
    public function __construct(UserRepositoryInterface $userRepository)
    {
        $this->userRepository = $userRepository;
    }
}

这部分工作正常.问题是我需要在app\Console\Kernel.php类中使用一些存储库方法,在那里我实现了一些计划任务.我尝试以类似的方式注入内核构造函数:

/**
 * Create a new console kernel instance.
 */
public function __construct(Application $app, Dispatcher $events, UserRepositoryInterface $userRepository)
{
    parent::__construct($app, $events);

    $this->userRepository = $userRepository;
}

但是,这种方法不起作用(例如在终端中运行'php artisan tinker'失败).我收到以下错误:

PHP致命错误:Uncaught Illuminate\Contracts\Container\BindingResolutionException:目标[App\Repositories\UserRepositoryInterface]在构建[App\Console\Kernel]时不可实例化.在D:\ xampp\htdocs\budget-and-expe nse-management\local\vendor\laravel\framework\src\Illuminate\Container\Container.php:752堆栈跟踪:

0 D:\ xampp\htdocs\budget-and-expense-management\local\vendor\laravel\framework\src\Illuminate\Container\Container.php(633):

Illuminate\Container\Container-> build('App\Repositorie ...',Array)

1 D:\ xampp\htdocs\budget-and-expense-management\local\vendor\laravel\framework\src\Illuminate\Foundation\Application.php(697):

Illuminate\Container\Container-> make('App\Repositorie ...',Array)

2 D:\ xampp\htdocs\budget-and-expense-management\local\vendor\laravel\framework\src\Illuminate\Container\Container.php(853):

照亮\基金会\应用程序 - >作( '应用程序\ Repositorie ......')

3 D:\ xampp\htdocs\budget-and-expense-management\local\vendor\laravel\framework\src\Illuminate\Container\Container.php(808):

在第752行的D:\ xampp\htdocs\budget-and-expense-management\local\vendor\laravel\framework\src\Illum inate\Container\Container.php中照亮\ C.

致命错误:Uncaught Illuminate\Contracts\Container\BindingResolutionException:目标[App\Repositories\UserRepositoryInterface]在构建[App\Console\Kernel]时无法实例化.在第752行的D:\ xampp\htdocs\budget-and-expense-m anagement\local\vendor\laravel\framework\src\Illuminate\Container\Container.php中

Illuminate\Contracts\Container\BindingResolutionException:构建[App\Console\Kernel]时,目标[App\Repositories\UserRepositoryInterface]不可实例化.在第752行的D:\ xampp\htdocs\budget-and-expense-management\local\vendor\laravel\framework\src\Illuminate\Container\Container.php中

调用堆栈:0.0006 345568 1. {main}()D:\ xampp\htdocs\budget-and-expense-management\local\artisan:0 0.0365 1417504 2. Illuminate\Foundation\Application-> make()D:\ xampp\htdocs\budget-and-expense-management\local\artisan:31 0.0365 1417552 3. Illuminate\Container\Container-> make()D:\ xampp\htdocs\budget-and-expense-management\local\vendor\laravel\framework\src\Illuminate\Foundation\Application.php:697 0.0367 1417552 4. Illuminate\Container\Container-> build()D:\ xampp\htdocs\budget-and-expense-management\local\vendor\laravel\framework\src\Illuminate\Container\Container.php:633 0.0367 1417552 5. Illuminate\Container\Container-> Illuminate\Container {closure}()D:\ xampp\htdocs\budget-and-expense-management\local\vendor\laravel\framework\src\Illuminate\Container\Container.php:735 0.0367 1417576 6. Illuminate\Foundation\Application-> make()D:\ xampp\htdocs\budget-and-expense-management\local\vendor\laravel\framework\src\Illuminate\Container\Container.php:230 0.0367 1417576 7.照亮\容器 r\Container-> make()D:\ xampp\htdocs\budget-and-expense-management\local\vendor\laravel\framework\src\Illuminate\Foundation\Application.php:697 0.0368 1417576 8. Illuminate\Container\Container-> build()D:\ xampp\htdocs\budget-and-expense-management\local\vendor\laravel\framework\src\Illuminate\Container\Container.php:633 0.0388 1453584 9. Illuminate\Container\Container- > getDependencies()D:\ xampp\htdocs\budget-and-expense-management\local\vendor\laravel\framework\src\Illuminate\Container\Container.php:777 0.0397 1456432 10. Illuminate\Container\Container-> resolveClass ()D:\ xampp\htdocs\budget-and-expense-management\local\vendor\laravel\framework\src\Illuminate\Container\Container.php:808

我想知道是否可以将存储库接口注入内核,如果是的话,我做错了什么？

Answer 1

你做错了.我想你直接在闭包中的内核中编写了计划任务.而是将命令逻辑包装在Console命令中

<?php

namespace App\Console\Commands;

use App\Repositories\UserRepository;
use Illuminate\Console\Command;

class MyCoolCommand extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'mycool:command';

    protected $repository = null;

    public function __construct(UserRepository $repository)
    {
        parent::__construct();

        $this->repository = $repository;
    }

    /**
     * Execute the console command.
     *
     * @return mixed
     */
    public function handle()
    {
        // your logic here
    }

}

然后像这样在内核中调用它们:

$schedule->command('mycool:command')->daily();

然后,您可以在命令构造函数中单独定义每个命令依赖项,清理内核并编写一些可测试且漂亮的代码:)