在laravel中通过用户模型获取图像url

public function getAvatarUrlAttribute()
{
    if ($this->avatar) {
        return Storage::url($this->avatar);
    }
    
    // 如果用户没有设置头像，则返回默认头像的 URL
    return asset('path/to/default/avatar.jpg');
}

'disks' => [
    // 其他磁盘配置...
    
    'public' => [
        'driver' => 'local',
        'root' => storage_path('app/public'),
        'url' => env('APP_URL').'/storage',
        'visibility' => 'public',
    ],
],

$user = User::find(1);
$avatarUrl = $user->avatar_url;