Php 域命名空间中的Laravel依赖项注入

我在使用依赖项注入和依赖项反转时遇到问题。我可以在构造函数中调用App:：make，依赖项反转工作得很好。。。只有当我尝试将它注入构造函数时，我才会遇到问题

ReflectionException Class StationsInterface does not exist

一个符合这个要求的uri应该是…/stats/station/mogreet/6

文件结构：

-app

    -controllers
        *StatsController

-Dashboard

    -Datasync

        -Interfaces
            *DatasyncInterface
            *MogreetDatasyncInterface

        -Services
            *MogreetDatasync

        *BackendServiceProvider
        *DatasyncBase

    -Repositories

        -Interfaces
            *CredentialsInterface
            *StationsInterface

        -Stations
            *DbCredentials
            *DbStations
            *FileCredentials

        -Stats

        *BackendServiceProvider
        *DbRepositoryBase

相关代码块如下所示：

服务提供者：

<?php namespace Dashboard\Repositories;

use Illuminate\Support\ServiceProvider;

class BackendServiceProvider extends ServiceProvider {

    public function register() {

        // Service Providers located in Stats directory
        $this->app->bind('StatsDailyInterface', 'Dashboard\Repositories\Stats\DbStatsDaily');
        //$this->app->bind('StatsMonthlyRepository', 'Dashboard\Repositories\Stats\DbStatsMonthly');
        //$this->app->bind('StatsYearlyRepository', 'Dashboard\Repositories\Stats\DbStatsYearly');

        // Service Providers located in Stations directory
        $this->app->bind('CredentialsInterface', 'Dashboard\Repositories\Stations\FileCredentials');
        $this->app->bind('StationsInterface', 'Dashboard\Repositories\Stations\DbStations');

    }

}

---

这个问题的答案是ServiceDataSyncInterface的闭包。之前，我是这样定义绑定的：

$this->app->bind('MogreetDatasyncInterface', 'Dashboard\Datasync\Services\MogreetDatasync');

<?php namespace Dashboard\Datasync;

use Dashboard\Repositories\Interfaces\StationsInterface;
use Dashboard\Repositories\Interfaces\CredentialsInterface;

class DatasyncBase {

    protected $Station;
    protected $Credentials;

    protected $results;

    protected $stats;

    public function __construct(StationsInterface $Station, CredentialsInterface $Credentials) {
        $this->Station = $Station;
        $this->Credentials = $Credentials;
        $this->stats = array();
    }

    public function __destruct() {

        unset($this->results);
        unset($this->stats);

    }

    public function init() {}

    protected function fetch($uri, $post_fields = '') {

        $cURL = curl_init();
        curl_setopt($cURL, CURLOPT_URL, $uri);
        curl_setopt($cURL, CURLOPT_CUSTOMREQUEST, 'GET');
        curl_setopt($cURL, CURLOPT_POSTFIELDS, $post_fields);
        $this->results = curl_exec($cURL);
        curl_close($cURL); 

    }

}

但是，这不允许IoC“递归”注入反转依赖项，您必须使用App:：make（'InversionInterface'）让IoC真正正确地解决这个问题

<?php namespace Dashboard\Datasync;

use Illuminate\Support\ServiceProvider;

use Dashboard\Datasync\Services\BrightCoveDatasync;
use Dashboard\Datasync\Services\FacebookDatasync;
use Dashboard\Datasync\Services\GoogleAnalyticsDatasync;
use Dashboard\Datasync\Services\LiquidCompassDatasync;
use Dashboard\Datasync\Services\MogreetDatasync;
use Dashboard\Datasync\Services\TwitterDatasync;

class BackendServiceProvider extends ServiceProvider {

    public function register() {

        $this->app->bind('BrightCoveDatasyncInterface', function() { return new BrightCoveDatasync( $this->app->make('StationsInterface'), $this->app->make('CredentialsInterface') ); });
        $this->app->bind('FacebookDatasyncInterface', function() { return new FacebookDatasync( $this->app->make('StationsInterface'), $this->app->make('CredentialsInterface') ); });
        $this->app->bind('GoogleAnalyticsDatasyncInterface', function() { return new GoogleAnalyticsDatasync( $this->app->make('StationsInterface'), $this->app->make('CredentialsInterface') ); });
        $this->app->bind('LiquidCompassDatasyncInterface', function() { return new LiquidCompassDatasync( $this->app->make('StationsInterface'), $this->app->make('CredentialsInterface') ); });
        $this->app->bind('MogreetDatasyncInterface', function() { return new MogreetDatasync( $this->app->make('StationsInterface'), $this->app->make('CredentialsInterface') ); });
        $this->app->bind('TwitterDatasyncInterface', function() { return new TwitterDatasync( $this->app->make('StationsInterface'), $this->app->make('CredentialsInterface') ); });

    }

}

在哪里实例化DatasyncBase类？如果希望laravel从IOC容器中注入依赖项，您是否意识到必须使用App:：make（）？DatasyncBase类只是Datasync的父类，因此它是通过继承MogreetDatasync实例化的。我没有意识到必须使用App:：make（）来注入依赖项，我的大多数示例都只使用bind。我将开始研究这种方法，但是如果你有一个好的例子/教程可以给我指点，那将非常感谢。从类型提示自动注入是Laravel所做的，而不是PHP所做的。可以从controllers构造函数中注入的原因是，它是用Laravel的IOC容器的build（）方法实例化的。看看这门课，你会对所发生的事情有更好的了解。我甚至相信Laracasts有一个关于它的屏幕广播：）我正在尝试使用依赖反转和依赖注入。需要使用App：：make-makes使IOC容器能够解析绑定。我仍然无法让依赖项反转工作。我将更新这个问题，以反映所做的代码更改以及目录结构。
$this->app->bind('MogreetDatasyncInterface', 'Dashboard\Datasync\Services\MogreetDatasync');

<?php namespace Dashboard\Datasync;

use Illuminate\Support\ServiceProvider;

use Dashboard\Datasync\Services\BrightCoveDatasync;
use Dashboard\Datasync\Services\FacebookDatasync;
use Dashboard\Datasync\Services\GoogleAnalyticsDatasync;
use Dashboard\Datasync\Services\LiquidCompassDatasync;
use Dashboard\Datasync\Services\MogreetDatasync;
use Dashboard\Datasync\Services\TwitterDatasync;

class BackendServiceProvider extends ServiceProvider {

    public function register() {

        $this->app->bind('BrightCoveDatasyncInterface', function() { return new BrightCoveDatasync( $this->app->make('StationsInterface'), $this->app->make('CredentialsInterface') ); });
        $this->app->bind('FacebookDatasyncInterface', function() { return new FacebookDatasync( $this->app->make('StationsInterface'), $this->app->make('CredentialsInterface') ); });
        $this->app->bind('GoogleAnalyticsDatasyncInterface', function() { return new GoogleAnalyticsDatasync( $this->app->make('StationsInterface'), $this->app->make('CredentialsInterface') ); });
        $this->app->bind('LiquidCompassDatasyncInterface', function() { return new LiquidCompassDatasync( $this->app->make('StationsInterface'), $this->app->make('CredentialsInterface') ); });
        $this->app->bind('MogreetDatasyncInterface', function() { return new MogreetDatasync( $this->app->make('StationsInterface'), $this->app->make('CredentialsInterface') ); });
        $this->app->bind('TwitterDatasyncInterface', function() { return new TwitterDatasync( $this->app->make('StationsInterface'), $this->app->make('CredentialsInterface') ); });

    }

}

<?php namespace Dashboard\Datasync;

use Dashboard\Repositories\Interfaces\StationsInterface;
use Dashboard\Repositories\Interfaces\CredentialsInterface;

class DatasyncBase {

    protected $Station;
    protected $Credentials;

    protected $results;

    protected $stats;

    public function __construct(StationsInterface $Station, CredentialsInterface $Credentials) {
        $this->Station = $Station;
        $this->Credentials = $Credentials;
        $this->stats = array();
    }

    public function __destruct() {

        unset($this->results);
        unset($this->stats);

    }

    public function init() {}

    protected function fetch($uri, $post_fields = '') {

        $cURL = curl_init();
        curl_setopt($cURL, CURLOPT_URL, $uri);
        curl_setopt($cURL, CURLOPT_CUSTOMREQUEST, 'GET');
        curl_setopt($cURL, CURLOPT_POSTFIELDS, $post_fields);
        $this->results = curl_exec($cURL);
        curl_close($cURL); 

    }

}