Yii2 使用十二 配合ajaxFileUpload 上传文件

1.js

$("input#upload").change(function () {
      $.ajaxFileUpload({
          url: '/members/web-members-rest/upload.html',
          secureuri: false,
          data:{'id':id},
          fileElementId:'upload',
          dataType: 'xml',
          success: function (data, status) {
              if ($(data).find("result").text() == 'Success') {
                  //上传成功
              }
              else{
                  alert("上传失败");
              }
          },
          error: function (data, status, e) {
              return;
          }
      });
  });
  $("a.upload").click(function(){$("input#upload").click();});

2.htm

<a href='javascript:;' class="upload">上传</a>
<div style="display:none"><input type="file" id="upload" name="UploadForm[file]" /></div>  这个name很重要
<img data-name="img" src="blank.gif" />

3.php,rest

       public function actionUpload(){
$params=Yii::$app->request->post();

$model = new UploadForm();
if (Yii::$app->request->isPost) {
    $model->file = UploadedFile::getInstance($model, 'file');
    if ($model->file && $model->validate()) {
        if(!file_exists('data/upload/'.$uid))mkdir('data/upload/'.$uid);
        $path='data/upload/';
        if(!file_exists($path))mkdir($path);

        $filename=$params['id'].'.' . $model->file->extension;
        if($model->file->saveAs($path.$filename))
            return ["result"=>"Success","url"=>$path.$filename];

        else return ["result"=>"Fail"];
    }
    return ["result"=>"ValidFail"];
}
return ["result"=>"PostFail"];