Yii+upload实现AJAX上传图片的方法

本文实例讲述了Yii+upload实现AJAX上传图片的方法。分享给大家供大家参考，具体如下：控制

本文实例讲述了Yii+upload实现AJAX上传图片的方法。分享给大家供大家参考，具体如下：

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>