public static function ImportExcel($door_id)
    {
        set_time_limit(0);  //解决上传超时
        @ini_set('memory_limit', '512M');  // 解决上传内存不够
        $self = new self();
        //导入excel
        $addFile=$_FILES['file'];
        if (empty($addFile['name'])){
            return ['err'=> 1,'msg' =>'请上传表格'];
        }
        $excelFileName =$addFile['tmp_name'];
        $file_types = explode ( ".", $addFile['name'] );
        $excel_type = array('xlsx');
        if($addFile['error'] > 0){
            return ['err' => 1,'msg'=>'上传出现错误,错误代码'.$addFile['error']];
        }
        if (!in_array(strtolower(end($file_types)),$excel_type)){
            return ['err'=> 2,'msg' =>'文件格式错误,只允许上传xlsx文件'];
        }
        include_once dirname(dirname(dirname(__FILE__))).'/vendor/Classes/PHPExcel/IOFactory.php';
        include_once dirname(dirname(dirname(__FILE__))).'/vendor/Classes/PHPExcel/Cell.php';
        $objPHPExcel = \PHPExcel_IOFactory::load($excelFileName);
        $sheet = $objPHPExcel->getSheet(0);
        $data=$sheet->toArray();
        $highestColumn = $sheet->getHighestColumn();
        $highestRow    = $sheet->getHighestRow();          // 取得总行数
        $imageFilePath='static/excel/media/'.$door_id.'/';//图片在本地存储的路径
        if (!file_exists ( $imageFilePath )){
            mkdir("$imageFilePath", 0777, true);
        }
        //excel 中带有图片
        // foreach($sheet->getDrawingCollection() as $img){
        //     list($startColumn,$startRow)= \PHPExcel_Cell::coordinateFromString($img->getCoordinates());//获取图片所在行和列
        //     $imageFileName = $img->getCoordinates() . mt_rand(100, 999);
        //     copy($img->getPath(),$imageFilePath.$imageFileName.'.'.$img->getExtension());
        //     //插入代码
        //     $startColumn = self::ABC2decimal($startColumn);//由于图片所在位置的列号为字母，转化为数字
        //     $data[$startRow-1][$startColumn]=$imageFilePath.$imageFileName.'.'.$img->getExtension();//把图片插入到数组中
        // }
        $columns = self::ABC2decimal($highestColumn);
        $str = '';
        // $industry = MediaIndustry::find()->select('id,industry_name')->where(['media_id' => 1])->asArray()->all();
        $industry = MediaIndustry::find()->select('id,industry_name')->asArray()->all();
        $indu = ArrayHelper::map($industry,'id','industry_name');

        $transaction = Yii::$app->db->beginTransaction();
        

        for ($row = 1; $row < $highestRow; $row++){
            for ($col = 0; $col <= $columns ; $col++) {
                $str = $data[0][$col];
                $media = new Media; //判断excel 表格中的数据
                switch ($str) {
                    case 'industry_id':
                        $media->industry_id = (int)array_search($data[$row][$col],$indu);
                        break;
                    case 'region_id':
                        // $media->industry_id = array_search($data[$row][$col],$indu);
                        break;
                    case 'link_type':
                        $media->link_type = array_search($data[$row][$col],$self->link);
                        break;
                    case 'entrance_level':
                        $media->entrance_level = array_search($data[$row][$col],$self->entrance_level);
                        break;
                    case 'news_source':
                        $media->news_source = array_search($data[$row][$col],$self->news_sources);
                        break;
                    default:
                        $media->$str = (string)$data[$row][$col];
                        break;
                }       
            }
            if(!$media->save()){
                $transaction->rollback();
                return ['err'=> 1,'msg' =>'请检查第'.$row.'行'];
            }
        }
        unset($media);
        unset($data);
        $transaction->commit();
        return ['err'=> 0,'msg' =>'导入成功'];
    }

    /**
     * 文件导入时由于图片所在位置的列号为字母，转化为数字
     * @param [type] $abc [description]
     */
    public static function ABC2decimal($abc)
    {
        $ten = 0;
        $len = strlen($abc);
        for($i=1;$i<=$len;$i++){
            $char = substr($abc,0-$i,1);//反向获取单个字符
            $int = ord($char);
            $ten += ($int-65)*pow(26,$i-1);
        }
        return $ten;
    }