如何为 Rack 应用设置端口? [英] How to set port for Rack app?

问题描述

builder.rb:

builder.rb:

def app
  Rack::Builder.new do
    run App.new
  end.to_app
end

如何在给定的端口上运行?

How to run on a given port?

推荐答案

尝试:

Rack::Handler.default.run(app, :Port => 3000)

尽管在 config.ru 文件中运行您的应用程序并将端口指定为 rackup 的命令行选项会更常见，例如:rackup-p 3000.

Although it would be more typical to run your app in a config.ru file and specify port as a command line option to rackup, e.g.: rackup -p 3000.

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