我想在 Rails 3.2.8 上使用 tag_form 制作一个简单的文件上传器。
但是当我尝试提交图像文件时,我收到一条错误消息
错误消息(当我尝试提交图像文件时)
Encoding::UndefinedConversionError in CoursesController#attachment
"\xFF" from ASCII-8BIT to UTF-8
如果你能帮我解决这个问题,我将不胜感激。
这是我的代码。
应用程序/ View /show.html.erb
<%= form_tag(attachment_course_path, :action=>'attachment', :multipart => true) do %>
<div class="field">
<%= label_tag :file %>
<%= file_field_tag :file %>
</div>
<div class="actions">
<%= submit_tag 'Submit' %>
</div>
<% end %>
应用程序/ Controller /courses_controller.rb
def attachment
t = Time.now.strftime("%Y%m%d%H%M%S")
uploaded_io = params[:file]
File.open(Rails.root.join('public', 'upload', uploaded_io.original_filename), 'w') do |file|
file.write(uploaded_io.read)
end
end
config/routes.rb
resources :courses, :only => [ :show ] do
member do
post :attachment
end
end
最佳答案
尝试以二进制模式打开文件( 'wb'
而不是 'w'
):
...
File.open(Rails.root.join('public', 'upload', uploaded_io.original_filename), 'wb') do |file|
file.write(uploaded_io.read)
end
Ruby Docs IO Open Mode
关于ruby-on-rails - 错误,Ruby on Rails: Encoding::UndefinedConversionError in CoursesController#attachment "\xFF"从 ASCII-8BIT 到 UTF-8,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/13909812/