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"];
  }