laravel 事件/监听器实例代码

 /**
   * The event listener mappings for the application.
   *
   * @var array
   */
  protected $listen = [
    Registered::class => [
      SendEmailVerificationNotification::class,
    ],
    'App\Events\UserBrowse' => [
      'App\Listeners\CreateBrowseLog',
      // 其它监听器
    ],
  ];

  public $ip_addr;
  public $request_url;
  public $city_name;

  /**
   * Create a new event instance.
   *
   * @return void
   */
  public function __construct($ip_addr, $request_url, $city_name)
  {
    $this->ip_addr = $ip_addr;
    $this->request_url = $request_url;
    $this->city_name = $city_name;
  }

/**
   * Handle the event.
   *
   * @param UserBrowse $event
   * @return void
   */
  public function handle(UserBrowse $event)
  {
    $log = new \App\Models\BrowseLog();

    $log->ip_addr = $event->ip_addr;
    $log->request_url = $event->request_url;
    $log->city_name = $event->city_name;

    $log->save();
  }

/**
   * Handle an incoming request.
   *
   * @param \Illuminate\Http\Request $request
   * @param \Closure $next
   * @return mixed
   */
  public function handle($request, Closure $next)
  {
    // 使用事件/监听器入库
    event(new UserBrowse($request->getClientIp(), $request->path(), get_city_by_ip(false, 'null')));
    
    return $next($request);
  }