如何在ROR(Ruby)中显示PDF? [英] How do I display a PDF in ROR (Ruby)?

问题描述

我在互联网上四处张望，但似乎无法找到如何在Rails中显示PDF的方法(我只能找到有关如何创建PDF的信息).

I have looked around on the internet, but do not seem able to find how to display a PDF in rails (I can only find info on how to create one).

有人知道我需要显示什么代码/宝石吗?

Does anyone know what code/gem I need to display one?

推荐答案

在您的控制器中:

def pdf
  pdf_filename = File.join(Rails.root, "tmp/my_document.pdf")
  send_file(pdf_filename, :filename => "your_document.pdf", :type => "application/pdf")
end

在config/environment/production.rb中:

config.action_dispatch.x_sendfile_header = "X-Sendfile" # for apache

或

config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for nginx

需要进行config修改，因为它使Web服务器可以直接从磁盘发送文件，从而提高了性能.

The config modification is required because it enables the web server to send the file directly from the disk, which gives a nice performance boost.

更新

如果要显示而不是下载它，请使用send_file的:disposition选项:

If you want to display it instead of downloading it, use the :disposition option of send_file:

send_file(pdf_filename, :filename => "your_document.pdf", :disposition => 'inline', :type => "application/pdf")

如果要内嵌显示，则此问题将比以前更完整.

If you want to display it inline, this question will be much more complete that I could ever be.

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