具有相对路径的Elixir/Phoenix文件上载文件夹

我在URL提示下引用了

我有同样的问题。我想知道为什么我不能将上传的文件移动到dest文件夹。 在绝对路径的情况下，它工作。 如何设置相对路径设置

上传_controller.ex

defmodule MyAppWeb.UploadController do
  use MyAppWeb, :controller

  def create(conn, %{"user" => user_params}) do
    IO.inspect user_params
    if upload = user_params["photo"] do
      extension = Path.extname(upload.filename)

      # It worked.
      # File.cp(upload.path, "/Users/myaccount/MyApp/priv/static/media/profile#{extension}") 

      # It didn't work.
      case File.cp(upload.path, "media/profile#{extension}") do
        {:ok, _result} ->
          conn
          |> put_flash(:info, "File Uploaded successfully.")
          |> redirect(to: upload_path(conn, :index))
        {:error, _result} ->
          IO.inspect(_result)
          conn
          |> put_flash(:info, "File Uploaded failed!!.")
          |> redirect(to: upload_path(conn, :index))
      end
    end
  end

endpoint.ex

plug Plug.Static,
  at: "/", from: :fish_pot, gzip: false,
  only: ~w(css fonts images js favicon.ico robots.txt)

#Added
plug Plug.Static, at: "/uploads", from: "media/"

---

我想在

priv/static/media

中上传文件。IO.inspect返回

：enoint

它到底是如何失败的？你尝试了什么？很抱歉我没有及时回复。请检查pwd.pwd显示项目根路径

File.cp（upload.path，“priv/static/media/profile{extension}”）

。但这是正常的方式吗？