记一次yii2 上传文件

1 view渲染

<form action="../src/website/import/report-flow" method="post" enctype="multipart/form-data">

<input type="file" name="fileExcel" id="fileExcel" />
<br />
<input type="submit" name="submit" value="Submit" />
</form>

2 上传接口

 /**
     * @author Anana
     * 上传商销/盒 文件 异步处理
     */
    public  function actionReportFlow()
    {
        $uploadFile = UploadedFile::getInstanceByName ( 'fileExcel' );
        if($uploadFile){
            $fileExt = $uploadFile->getExtension (); // 文件后缀
            $size = $uploadFile->size;//文件大小
            if (! in_array ( $fileExt, array('xlsx') )) {
                $reason [] = '上传的文件后缀名必须为xlsx；';
            }else if($size > 20*1024*1024){
                $reason [] = '文件大小不能超过20M；';
            }else{
                $yyyymm = date('Ym');
                $fileName = $yyyymm.'.'.$fileExt;
                $companyCode = \Yii::$app->session['companyRow']['code'];
                $buildsDir = dirname(\yii::$app->basePath)."/builds/{$companyCode}/{$fileExt}/report_flow_month";
                //创建生成目录文件夹
                if(!file_exists($buildsDir)){
                    mkdir($buildsDir,0777,true);
                }
                $csvPath = $buildsDir.'/'.$fileName;
                $rs = $uploadFile->saveAs($csvPath);
                if($rs){
                    parent::apiReturn ( 0, [ ], '上传成功' );
                }else{
                    $reason []  = '上传文件失败' . $uploadFile->error;
                }
            }
            $jsonData = [ ];
            if ($reason) {
                $jsonData ['errorList'] =  implode ( ' ', $reason );
                parent::apiReturn ( 1, $jsonData, '错误信息提示' );
            }
        }else{
            parent::apiReturn ( 1, [ ], '上传失败' );
        }
    }

标签：文件,uploadFile,else,fileExt,buildsDir,reason,yii2,上传
来源： https://www.cnblogs.com/polax/p/10642937.html