yii2文件上传的REST api

问题描述：

我试图从移动应用程序上传文件图像/文件类型，并将该图像存储在后端。我使用Yii2框架API来做到这一点。即时通讯使用邮递员来检查API。我在我的行动中运行下面的内容。yii2文件上传的REST api

/*Uploading documents*/ 
     public function actionUploading_doc() { 

     $uploads = \yii\web\UploadedFile::getInstanceByName('upfile'); 

     print_r($uploads);exit; 

      if (empty($uploads)){ 
       return "Must upload at least 1 file in upfile form-data POST"; 
      } 

      foreach ($uploads as $file){ 
       $filename = time() . $image->name; 
       $path = "uploads/" . $filename; 
       $file->saveAs($path); 
      } 
     }

当我运行这个邮政方法从邮递员..并打印$上传我的价值获得空值。这意味着它不会来控制器。请帮我解决这个问题。

答

对我来说这是我做过什么，而不UploadFile类

/*Uploading documents*/ 
     public function actionUploading() { 

     $uploads = \yii\web\UploadedFile::getInstanceByName('upfile'); 

     \yii::$app->request->enableCsrfValidation = false; 
      $filename = $uploads->name; 
      $path = "http://localhost/projects/YiiRestful/api/web/uploads/".$filename; 
      $putdata = fopen("php://input", "r"); 
      // make sure that you have /web/upload directory (writeable) 
      // for this to work 
      $path = "uploads/".$filename; 

      $fp = fopen($path, "w"); 

      while ($data = fread($putdata, 1024)) 
       fwrite($fp, $data); 

      /* Close the streams */ 
      fclose($fp); 
      fclose($putdata); 
    }

答

我会尝试这样的事情......（未测试）

public function actionUploadingDoc() { // good practice to use camel case for methods 
    $uploads = \yii\web\UploadedFile::getInstances('upfile'); 
    if (empty($uploads)){ 
     return false; 
     // handle error reporting somewhere else 
    } 
    $path = 'uploads/'; // set your path 
    foreach ($uploads as $upload){ 
     $filename = $path . time() .'_'. $upload->name ; 
     $upload->saveAs($filename); 
    } 
    return true; 
}

答

可以使用的base64字符串uplod。定义函数内部控制器这样

public function base64_to_jpeg($base64_string, $output_file) { 
    $path="your/real/path/"; 
    // open the output file for writing 
    $ifp = fopen($path.$output_file, 'wb'); 

    // split the string on commas 
    // $data[ 0 ] == "data:image/png;base64" 
    // $data[ 1 ] == <actual base64 string> 
    $data = explode(',', $base64_string); 
    if(count($data)>1) { 
     $dataText=$data[ 1 ]; 
    } else { 
     $dataText=$base64_string; 
    } 

    // we could add validation here with ensuring count($data) > 1 
    fwrite($ifp, base64_decode($dataText)); 

    // clean up the file resource 
    fclose($ifp); 

    return $output_file; 
}

并利用内部行动

public function actionUpload(){ 

    $imgName=md5(uniqid()).'.jpg'; 
    $this->base64_to_jpeg($base64_string, $imgName); 
}

yii2文件上传的REST api

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