感谢大神的文章供我参考：https://blog.csdn.net/createNo_1/article/details/84290820

一、Composer 安装插件

$ composer require "overtrue/laravel-filesystem-qiniu"

二、config/app.php 中注册服务提供者，和引入配置文件 filesystems.php

// 文件驱动配置文件
// 注册后 在config目录下创建 filesystems.php 文件
$app->loadComponent('filesystems', 'Illuminate\Filesystem\FilesystemServiceProvider', 'filesystem');
// 服务提供者
$app->register(Overtrue\LaravelFilesystem\Qiniu\QiniuStorageServiceProvider::class);

三、config/filesystems.php 里的 disks 中新增七牛的文件驱动配置

<?php

return [

    /*
    |--------------------------------------------------------------------------
    | Default Filesystem Disk
    |--------------------------------------------------------------------------
    |
    | Here you may specify the default filesystem disk that should be used
    | by the framework. A "local" driver, as well as a variety of cloud
    | based drivers are available for your choosing. Just store away!
    |
    | Supported: "local", "s3", "qiniu"
    |
    */

    'default' => env('FILESYSTEM_DRIVER', 'local'),

    /*
    |--------------------------------------------------------------------------
    | Default Cloud Filesystem Disk
    |--------------------------------------------------------------------------
    |
    | Many applications store files both locally and in the cloud. For this
    | reason, you may specify a default "cloud" driver here. This driver
    | will be bound as the Cloud disk implementation in the container.
    |
    */

    /*
    |--------------------------------------------------------------------------
    | Filesystem Disks
    |--------------------------------------------------------------------------
    |
    | Here you may configure as many filesystem "disks" as you wish, and you
    | may even configure multiple disks of the same driver. Defaults have
    | been setup for each driver as an example of the required options.
    |
    */

    'disks' => [

        'local' => [
            'driver' => 'local',
            'root'   => storage_path('app'),
        ],

        
        'qiniu' => [
            'driver' => 'qiniu',
            'access_key'=> env('QINIU_ACCESS_KEY', ''),
            'secret_key' => env('QINIU_SECRET_KEY', ''),
            'bucket' => env('QINIU_BUCKET'),
            'domain' => env('QINIU_DOMAIN', ''),
        ],

    ],

];

四、控制器里新建方法 avatarUpload

    use Illuminate\Support\Facades\Storage;
    use Illuminate\Support\Facades\File;

    // 上传图片到 七牛云
    public function  avatarUpload(Request $request){

        if ($request->hasFile('file') && $request->file('file')->isValid()) {
            // getClientOriginalName 获取图片文件的名字
            // getClientOriginalExtension  获取图片的后缀名
            $newFileName =  md5($request->file('file')->getClientOriginalName() . time())
                            . '.'
                            . $request->file('file')->getClientOriginalExtension();
            
            // 2.保存到该磁盘
            // 文件名重复就会覆盖=>因此要回到上一步=>自定义文件名 $newFileName
            Storage::disk('qiniu')->put($newFileName, File::get($request->file('file')->path()));
            // 输出图片地址
            echo $avatar = 'http://' . env('QINIU_DOMAIN') . '/'.$newFileName;
        }
        return [
            'code' => 0,
            'message' => $request->file('file')->getErrorMessage(),
        ];
    }

五、多图上传

    use Illuminate\Support\Facades\Storage;
    use Illuminate\Support\Facades\File;
    // 上传图片到 七牛云
    public function  avatarUpload(Request $request){

        if ($request->hasFile('file') ) {
            // getClientOriginalName 获取图片文件的名字
            // getClientOriginalExtension  获取图片的后缀名
            $imgUrl = array();  //  图片集合
            foreach ($request->file('file') as $v) {
                
                $newFileName =  md5($v->getClientOriginalName() . time())
                            . '.'
                            . $v->getClientOriginalExtension();
                
                // 2.保存到该磁盘
                // 文件名重复就会覆盖=>因此要回到上一步=>自定义文件名 $newFileName
                Storage::disk('qiniu')->put($newFileName, File::get($v->path()));
                // 输出图片地址
                $imgUrl[] = 'http://' . env('QINIU_DOMAIN') . '/'.$newFileName;
            }

            dd( $imgUrl );
            
        }
        return [
            'code' => 0,
            'message' => $request->file('file')->getErrorMessage(),
        ];
    }