使用Postman上传ASP核心WebApi测试文件

Question

我创建了一个采用任意文件的端点:

[HttpPost()]
public async Task<IActionResult> CreateFile(IFormFile file)

当我用Postman测试时,它file总是为空.

这是我在Postman做的事情:

我究竟做错了什么？

Answer 1

感谢@ rmjoia的评论我得到了它的工作!这是我在Postman中必须做的事情:

Answer 2

上载一个或多个文件的完整解决方案如下所示：

• 此操作用于上传多个文件：

  // Of course this action exist in microsoft docs and you can read it.
  HttpPost("UploadMultipleFiles")]
  public async Task<IActionResult> Post(List<IFormFile> files)
  {
  
      long size = files.Sum(f => f.Length);
  
      // Full path to file in temp location
      var filePath = Path.GetTempFileName();
  
      foreach (var formFile in files)
      {
          if (formFile.Length > 0)
              using (var stream = new FileStream(filePath, FileMode.Create))
                  await formFile.CopyToAsync(stream);
      }
  
      // Process uploaded files
  
      return Ok(new { count = files.Count, path = filePath});
  }
  

邮递员图片显示了如何将文件发送到此端点以上传多个文件：

• 此操作用于上传单个文件：

  [HttpPost("UploadSingleFile")]
  public async Task<IActionResult> Post(IFormFile file)
  {
  
      // Full path to file in temp location
      var filePath = Path.GetTempFileName();
  
      if (file.Length > 0)
          using (var stream = new FileStream(filePath, FileMode.Create))
              await file.CopyToAsync(stream);
  
      // Process uploaded files
  
      return Ok(new { count = 1, path = filePath});
  }
  

邮递员图片显示了如何将文件发送到此端点以上传单个文件：