vue3 含文件类型传Form Data数据格式给后台文件参数值异常 file: [object Object]

1、刚开始踩坑：

// 子组件
const getValues = () => {
  validate()
    .then(() => {
      console.log(toRaw(formData.file[0]));
      let dataObj = new FormData();
      dataObj.append('deviceTypeId', formData.deviceTypeId);
      dataObj.append('manufacturerId', formData.manufacturerId);
      dataObj.append('modelId', formData.modelId);
      dataObj.append('versionCode', formData.versionCode);
      dataObj.append('file', toRaw(formData.file[0]));
      dataObj.append('description', formData.description);
      emit('getEditData', dataObj); // 含有不校验的值
    })
    .catch((err) => {
      console.log(err);
    });
};
// 父组件
const handleOk = async() => {
  await editRef.value.getValues();
};
const getEditData = (data) => {
  console.log(data);
  handleAddFn(data);
};
const handleAddFn = (data) => {
  editLoading.value = true;
  // application/x-www-form-urlencoded, application/json, multipart/form-data
  axios.post(url.ADD_UPGRADE_MANAGE, data)
    .then((res) => {
      console.log(res);
      message.success("上传成功！");
      editPop.value = false;
      editRef.value.resetFields();
      pagination.current = 1;
      resetFields();
      getTableData(formData);
    })
    .finally(() => {
      editLoading.value = false;
    })
};

2、参数打印的值以及请求（axios的post请求默认头类型是form data）

3、解决：使用里面那层数据 originFileObj

const getValues = () => {
  validate()
    .then(() => {
      console.log(toRaw(formData.file[0].originFileObj));
      let dataObj = new FormData();
      dataObj.append('deviceTypeId', formData.deviceTypeId);
      dataObj.append('manufacturerId', formData.manufacturerId);
      dataObj.append('modelId', formData.modelId);
      dataObj.append('versionCode', formData.versionCode);
      dataObj.append('file', toRaw(formData.file[0].originFileObj));
      dataObj.append('description', formData.description);
      emit('getEditData', dataObj); // 含有不校验的值
    })
    .catch((err) => {
      console.log(err);
    });
};

4、效果：

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