Ant Design Pro 文件上传(JavaScript版)

Posted 2021-12-05 シ゛甜虾

服务器可以成功接收文件，浏览器Data内容

前端代码

const formData = new FormData();
formData.append('file', file);
formData.append('filetype', fileType);
formData.append('filepath', filePath);
request('/api/services/UpdateFile', { method: 'post', data: formData })
.then(res => {
    if(res!=null)
    {
      if(res.success==true)
      {
        refresh();
        countDown("上传成功！",2);
        return true;
      }
      else
      {
        countDown("上传失败！",3);
        return true;
      }
    }
    else
    {
      countDown("上传失败！",3);
      return true;
    }
    })
    return true;
}
else
{
  countDown("文件格式不正确！",3);
}

这种后台就没办法通过这种方式获得数据

 需要设定requestType类型，headers中的Content-Type不要设置，要让umi-request自己转换

export async function upDataFirmware(bodaData) {
  return request('/api/Firmware/AddUpdateFile', {
    headers: {
      // 'Content-Type': 'application/json',
      Authorization: token.get(),
    },
    method: 'POST',
    requestType: 'form',
    data: bodaData,
  });
}

后端代码，这里用的是.net 6和.net core 3.0基本一致

[HttpPost("AddUpdateFile")]
public GeneralResult AddUpdateFile([FromForm] IFormCollection formCollection)
{
    GeneralResult generalResult = new GeneralResult();
    _logger.Info(typeof(FirmwareController),"UpdateAppUpdateTasksFile");
    String filePath = "groundTemperatureMonitoring";
    if (formCollection.ContainsKey("filepath"))
    {
        var thisFilePath = formCollection["filepath"];
        _logger.Info(typeof(FirmwareController), $"UpdateAppUpdateTasksFile:{thisFilePath}");
    }
    if (formCollection.ContainsKey("filetype"))
    {
        var thisFiletype = formCollection["filetype"];
        _logger.Info(typeof(FirmwareController), $"UpdateAppUpdateTasksFile:{thisFiletype}");
    }
    FormFileCollection fileCollection = (FormFileCollection)formCollection.Files;
    try
    {
        foreach (IFormFile file in fileCollection)
        {
            StreamReader reader = new StreamReader(file.OpenReadStream());
            String content = reader.ReadToEnd();
            String name = file.FileName;
            long fileLength = file.Length;
            String filename = _edgeParameters.GetFilePath() + "/" + filePath + "/" + name;
            String path = _edgeParameters.GetFilePath() + "/" + filePath + "/";
            if (System.IO.File.Exists(filename))
            {
                System.IO.File.Delete(filename);
            }
            if (false == System.IO.Directory.Exists(path))
            {
                System.IO.Directory.CreateDirectory(path);
            }
            using (FileStream fs = System.IO.File.Create(filename))
            {
                // 复制文件
                file.CopyTo(fs);
                // 清空缓冲区数据
                fs.Flush();
            }
            generalResult.IsSuccess = true;
            generalResult.Message = "文件上传成功！";
        }
    }
    catch (Exception ex)
    {
        _logger.Error(typeof(FirmwareController), ex.Message, ex);
        generalResult.IsSuccess = false;
        generalResult.Message = ex.Message;
    }
    return generalResult;
}