我想在ASP.NET MVC中上传ajax的照片，但是文件传到了控制器

<form id="uploadForm">
  <input type="file" id="photo" name="photo">
  <button type="button" onclick="uploadPhoto()">上传照片</button>
</form>

<script>
  function uploadPhoto() {
    var formData = new FormData();
    formData.append("photo", document.getElementById("photo").files[0]);

    $.ajax({
      url: "/Controller/UploadPhoto",
      type: "POST",
      data: formData,
      processData: false,
      contentType: false,
      success: function(response) {
        // 处理上传成功后的逻辑
      },
      error: function(xhr, status, error) {
        // 处理上传失败后的逻辑
      }
    });
  }
</script>

[HttpPost]
public ActionResult UploadPhoto(HttpPostedFileBase photo)
{
  if (photo != null && photo.ContentLength > 0)
  {
    // 处理上传的文件，例如保存到服务器或存储到云存储服务
    // 这里只是一个示例，你可以根据实际需求进行处理

    var fileName = Path.GetFileName(photo.FileName);
    var filePath = Path.Combine(Server.MapPath("~/Uploads"), fileName);
    photo.SaveAs(filePath);

    return Json(new { success = true, message = "照片上传成功" });
  }

  return Json(new { success = false, message = "请选择要上传的照片" });
}