Rails 3 - 将文件上传到公共目录 [英] Rails 3 - upload files to public directory

问题描述

我正在寻找一种将文件(xml 文件)上传到 Rails 3 的公共目录的简单方法.一旦它在那里，我想打开它，解析内容并在此之后删除文件.

I'm looking for a simple way to upload a file (an xml file) to the public directory of Rails 3. Once it's there I want to open it, parse the contents and delete the file after that.

每当我搜索文件上传时，我都会遇到 Paperclip.但我不想将文件与对象相关联.我只是想上传它.最简单的方法是什么?

Whenever I searched for file upload I encountered Paperclip. But I don't want to associate the file with an object. I just want to upload it. What's the easiest way to do this?

推荐答案

a.表格

<%= form_for :file_upload, :html => {:multipart => true} do |f| %>
  <%= f.file_field :my_file %>
  <%= f.submit "Upload" %>
<% end %>

b.控制器

def file_upload  
  require 'fileutils'
  tmp = params[:file_upload][:my_file].tempfile
  file = File.join("public", params[:file_upload][:my_file].original_filename)
  FileUtils.cp tmp.path, file
  ... # YOUR PARSING JOB
  FileUtils.rm file
end

但是你可以只解析临时文件，所以你不需要将它复制到公共目录，它会自动删除

But you can parse just tempfile, so you don't need to copy it to public dir and it will automatically deleted

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