YII 用AJAX上传图片

控制器代码

/**
     * 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代码

<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 () {
    $('#fileupload').fileupload({
        dataType: 'json',
        url: '/Attachment/GetAjax',        
        success: function (json) {            
                $('#MemType_zmt_pic').attr('value',json.upfile.file);
                $("#images").attr('src',json.upfile.file);
        }
    });
});
</script>