诗歌rails之文件上传-优快云博客

本文介绍了一个使用Ruby on Rails实现的文件上传控制器。该控制器通过定义`uploadFile`方法来处理文件上传逻辑，并采用时间戳和原始文件名组合的方式生成唯一文件名。此外，还提供了一个包含文件上传表单的视图。

1，upload_controller.rb

ruby代码

class UploadController < ApplicationController
before_filter :configure_charsets
def configure_charsets
@headers["Content-Type"]="text/html;charset=utf-8"
end
def upload
end
def uploadFile(file)
if !file.original_filename.empty?
@filename=getFileName(file.original_filename)
File.open("#{RAILS_ROOT}/public/upload/#{@filename}", "wb") do |f|
f.write(file.read)
end
return @filename
end
end
def getFileName(filename)
if !filename.nil?
Time.now.strftime("%Y_%m_%d_%H_%M_%S") + '_' + filename
end
end
def save
unless request.get?
if filename=uploadFile(params[:file]['file'])
render :text=>filename
end
end
end
end

class UploadController < ApplicationController before_filter :configure_charsets def configure_charsets @headers["Content-Type"]="text/html;charset=utf-8" end def upload end def uploadFile(file) if !file.original_filename.empty? @filename=getFileName(file.original_filename) File.open("#{RAILS_ROOT}/public/upload/#{@filename}", "wb") do |f| f.write(file.read) end return @filename end end def getFileName(filename) if !filename.nil? Time.now.strftime("%Y_%m_%d_%H_%M_%S") + '_' + filename end end def save unless request.get? if filename=uploadFile(params[:file]['file']) render :text=>filename end end end end

2，upload.rhtml

ruby代码

<h1>Upload File</h1>
<%= form_tag({:action => 'save'}, :multipart => true) %>
Upload your file: <%= file_field("file", "file") %>
<br/>
<%= submit_tag("Upload file") %>
<%= end_form_tag %>

<h1>Upload File</h1> <%= form_tag({:action => 'save'}, :multipart => true) %> Upload your file: <%= file_field("file", "file") %> <br/> <%= submit_tag("Upload file") %> <%= end_form_tag %>

转载于:https://www.cnblogs.com/orez88/articles/1525121.html