本人学生不是很懂，求助

       pic: function(e) {
        wx.chooseMedia({
            count:1,
            mediaType:['image'],
            sourceType: ['album', 'camera'],
            sizeType:['original'],
            camera:'back',
            success:function(res){
                var image = res.tempFiles[0].tempFilePath;
                   console.log(image);
                    var upload =wx.uploadFile({
                      filePath: image,
                      name: 'name',
                      url: 'https://wushen.freehk.svipss.top/index.php/index/data/upload',
                      header: {
                        "Content-Type": "multipart/form-data"
                      },
                      formData: {
                        'user': 'test'
                      },
                      success:function(res){
                        console.log(res.data);   
                      },
                      fail:function(res)
                      {
                        wx.showModal({
                            title: '错误提示',
                            content: '上传图片失败',
                            showCancel: false,
                            success: function (res) { }
                          })
                      }
                    })
                    upload.onProgressUpdate((res)=>{
                        console.log(res.progress)
                    })
                
            }
        })

    },

thinkphp如下
public function upload(){
        // 获取表单上传文件 例如上传了001.jpg
        $file = request()->file('file');
        
        // 移动到框架应用根目录/public/uploads/ 目录下
        if($file){
            $info = $file->move(ROOT_PATH . 'public' . DS . 'uploads');
            if ($info) {
                $file = $info->getSaveName();
                $res = ['errCode'=>0,'errMsg'=>'图片上传成功','file'=>$file];
                return json($res);
            }
        }
        $res = ['errCode'=>0,'errMsg'=>'图片上传失败','file'=>$file];
        return json($res);
    }

上传图片总是为空