Yii+upload implements AJAX method to upload images

This article mainly introduces the method of Yii upload to implement AJAX upload pictures, and analyzes the related techniques of Yii combined with the upload plug-in to implement ajax upload. It has certain reference value. Friends in need can refer to this article

The example describes how Yii upload implements AJAX to upload images. Share it with everyone for your reference, the details are as follows:

Controller code:

/**
* get ajax uploaded files.
*/
public function actionGetAjax(){
    $model=new Attachment();//加载附件模型
    $tmpFile  = CUploadedFile::getInstanceByName('image');//读取图像上传域,并使用系统上传组件上传
    $Directroy = Yii::app()->params['uploadPath'];//读取上传配置文件,我的配置是/uploads
    //创建文件存放路径
    $y     = date('Y');
    $m     = date('m');
    $d     = date('d');
    $Directroy = $Directroy."/";
    $pathd = $Directroy.$y."/".$m."/".$d."/";
    Tool::makedir(dirname(Yii::app()->BasePath).$pathd); //创建文件夹,此处一定要加上dirname(Yii::app()->BasePath)不然可能会出错;
    if(is_object($tmpFile) && get_class($tmpFile)==='CUploadedFile'){
      $filename        = time().rand(0,9);
      $ext          = $tmpFile->extensionName;//上传文件的扩展名
      if($ext=='jpg'||$ext=='gif'||$ext=='png'){
          $big          = $pathd . $filename . '_600.' . $ext; //310缩略图
        $small         = $pathd . $filename . '_310.' . $ext; //310缩略图
        $thumb         = $pathd . $filename . '_100.' . $ext; //100缩略图
        $model->zat_thumb    = $thumb; //缩略图
      }
      $uploadfile       = $pathd . $filename . '.' . $ext;   //保存的路径
      $model->zat_url     = $pathd . $filename . '.' . $ext;   //重新赋值
      $model->zat_file_name  = $filename . '.' . $ext;        //文件名称
      $model->zat_title    = $tmpFile->name;            //文件标题
      $model->zat_file_type  = $tmpFile->type;            //文件类型
      $model->zat_file_size  = $tmpFile->size;            //文件大小
      $model->zat_image    = 2;
      $model->zat_ip     = Yii::app()->request->userHostAddress; //上传IP
      //print_r($uploadfile);
    }
    if($model->save()){
      $tmpFile->saveAs(dirname(Yii::app()->BasePath).$uploadfile);//保存到服务器
      if($ext=='jpg'||$ext=='gif'||$ext=='png'){
        $img = Yii::app()->image->load(dirname(Yii::app()->BasePath).$uploadfile); //使用image-Kohana图像处理库扩展
        $img->resize(600,600)->quality(85);
        $img->save(dirname(Yii::app()->BasePath).$big);//生成600缩略图
        $img->resize(310,310)->quality(85);
        $img->save(dirname(Yii::app()->BasePath).$small);//生成310缩略图
        $img->resize(100,100)->quality(85);
        $img->save(dirname(Yii::app()->BasePath).$thumb);//生成100缩略图
      }
      if($ext=='jpg'||$ext=='gif'||$ext=='png'){
        $str = json_encode(
          array(
            'upfile'=>array(
              'zat_id' => Yii::app()->db->getLastInsertID(), //取插ID
              'file' => $uploadfile,//原图
              'small' => $small,//310缩略图
              'thumb' => $thumb,//100缩略图
            )
          )
        );
      }else{
        $str = json_encode(
          array(
            'upfile'=>array(
              'zat_id' => Yii::app()->db->getLastInsertID(),
              'file' => $uploadfile,
            )
          )
        );
      }
      echo $str;
    }
}

VIEW code ：

<input id="fileupload" type="file" name="image" multiple>
<script src="<?php echo Yii::app()->baseUrl;?>/js/jquery.ui.widget.js"></script>
<script src="<?php echo Yii::app()->baseUrl;?>/js/jquery.iframe-transport.js"></script>
<script src="<?php echo Yii::app()->baseUrl;?>/js/jquery.fileupload.js"></script>
<script>
$(function () {
  $(&#39;#fileupload&#39;).fileupload({
    dataType: &#39;json&#39;,
    url: &#39;/Attachment/GetAjax&#39;,
    success: function (json) {
        $(&#39;#MemType_zmt_pic&#39;).attr(&#39;value&#39;,json.upfile.file);
        $("#images").attr(&#39;src&#39;,json.upfile.file);
    }
  });
});
</script>

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