Question

我使用ruby 1.9.3和redmine 1.4.4

根据这个 - ＆gt; Please help me send a jpg file using send_data，我在控制器中执行此操作：

  @file = temp.path
  File.open(@file, 'r') do |f|
    send_data f.read, :filename => "myfile.pdf", :type => "application/pdf", :disposition => "attachment"
  end
  File.delete(@file)

但它返回ArgumentError (invalid byte sequence in UTF-8)，为什么？

Answer 1

PDF文件必须编码

 file = temp.path
 File.open(file, 'r') do |f|
   send_data f.read.force_encoding('BINARY'), :filename => filename, :type => "application/pdf", :disposition => "attachment"
 end
 File.delete(file)

使用rails send_data发送PDF

1 个答案: