对于php包中没有Laravel ServiceProvider 的服务注册,使用下面的方法可以有效解决

1.创建一个ServiceProvider

php artisan make:provider EasySmsServiceProvider

<?php

namespace App\Providers;

use Overtrue\EasySms\EasySms;
use Illuminate\Support\ServiceProvider;

class EasySmsServiceProvider extends ServiceProvider
{
    /**
     * Bootstrap services.
     *
     * @return void
     */
    public function boot()
    {
        //
    }

    /**
     * Register services.
     *
     * @return void
     */
    public function register()
    {
        #注册服务
        $this->app->singleton('easysms', function ($app) {
            return new EasySms(config('easysms'));
        });

    }
}

2.创建对应的配置文件

$ touch config/easysms.php

<?php
return [
    #HTTP 请求的超时时间（秒）
    'timeout' => 5.0,

    #默认发送配置
    'default' => [
        #网关调用策略，默认：顺序调用
        'strategy' => \Overtrue\EasySms\Strategies\OrderStrategy::class,
        #默认可用的发送网关
        'gateways' => [
            'yunpian',
        ],
    ],
    #可用的网关配置
    'gateways' => [
        'errorlog' => [
            'file' => '/tmp/easy-sms.log',
        ],
        'yunpian' => [
            'api_key' => env('YUNPIAN_API_KEY'),         #这里需要在.env中写一下
        ],
    ],
];

3.修改config/app.php

最后 打开config/app.php 在 providers 中增加 App\Providers\EasySmsServiceProvider::class,

'providers' => [

    /*
     * 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\Notifications\NotificationServiceProvider::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,

    /*
     * Package Service Providers...
     */

    /*
     * Application Service Providers...
     */
    App\Providers\AppServiceProvider::class,
    App\Providers\AuthServiceProvider::class,
    // App\Providers\BroadcastServiceProvider::class,
    App\Providers\EventServiceProvider::class,
    App\Providers\RouteServiceProvider::class,
    App\Providers\EasySmsServiceProvider::class,                    #短信发送服务

],