向IOC容器添加自己的类

1.创建自定义的类

需要注意的是，laravel能够对自身app目录内的php 类进行自动加载，只要是符合psr4的命名规则就行

app/Billing/Stripe.php  //这里在app下建立了一个Billing目录，里面放了一个Stripe的类< ?phpnamespace App\Billing;  //需要命名空间才能被php正确查找到class Stripe{    public  function  charge(){        dd('charge');    }}

2.创建service provider

用这个命令创建

php artisan make:provider BillingServiceProvider

app/Providers/BillingServiceProvider.php  //创建成功后会在这个目录生成php文件app->bind('billing',function(){  //这里用了bind方法来创建一个container，绑定了一个billing的关键字来关联，这个container里会返回一个Stripe实例，相当于实例化了。            return new Stripe();        });    }}

3.注册service provider

在app.php里注册了才能被laravel识别这个service provider，才能在代码里面调用

config/app.php  'providers' => [  //在providers数组里面添加        /*         * Laravel Framework Service Providers...         */        Illuminate\Auth\AuthServiceProvider::class,        Illuminate\Broadcasting\BroadcastServiceProvider::class,        Illuminate\Bus\BusServiceProvider::class,        Illuminate\Cache\CacheServiceProvider::class,        Illuminate\Foundation\Providers\ConsoleSupportServiceProvider::class,        Illuminate\Cookie\CookieServiceProvider::class,        Illuminate\Database\DatabaseServiceProvider::class,        Illuminate\Encryption\EncryptionServiceProvider::class,        Illuminate\Filesystem\FilesystemServiceProvider::class,        Illuminate\Foundation\Providers\FoundationServiceProvider::class,        Illuminate\Hashing\HashServiceProvider::class,        Illuminate\Mail\MailServiceProvider::class,        Illuminate\Pagination\PaginationServiceProvider::class,        Illuminate\Pipeline\PipelineServiceProvider::class,        Illuminate\Queue\QueueServiceProvider::class,        Illuminate\Redis\RedisServiceProvider::class,        Illuminate\Auth\Passwords\PasswordResetServiceProvider::class,        Illuminate\Session\SessionServiceProvider::class,        Illuminate\Translation\TranslationServiceProvider::class,        Illuminate\Validation\ValidationServiceProvider::class,        Illuminate\View\ViewServiceProvider::class,        Collective\Html\HtmlServiceProvider::class,        'Maatwebsite\Excel\ExcelServiceProvider',        /*         * Application Service Providers...         */        App\Providers\AppServiceProvider::class,        App\Providers\AuthServiceProvider::class,        App\Providers\EventServiceProvider::class,        App\Providers\RouteServiceProvider::class,        App\Providers\BillingServiceProvider::class, //按照格式添加即可    ],

4.管理路由（测试）

主要是为了测试目的，所以在路由里面直接来测试service provider

app/Http/routes.php//这里有两种方式使用，第一种是跟上一篇文章提到的两种container使用方式有关，第二种是通过自动解析机制来实现//Route::get('/', function () {//    $billing = app('billing');  //用直接传入关键字，也可以用make()//    dd($billing->charge());//});Route::get('/', function (App\Billing\Stripe $billing) {  //传入一个class名字和一个变量，laravel会自动去寻找和解析    dd($billing->charge());});