sinatra_ssl.rb：

require 'webrick/https'

module Sinatra
  class Application
    def self.run!
      certificate_content = File.open(ssl_certificate).read
      key_content = File.open(ssl_key).read

      server_options = {
        :Host => bind,:Port => port,:SSLEnable => true,:SSLCertificate => OpenSSL::X509::Certificate.new(certificate_content),:SSLPrivateKey => OpenSSL::PKey::RSA.new(key_content)
      }

      Rack::Handler::WEBrick.run self,server_options do |server|
        [:INT,:TERM].each { |sig| trap(sig) { server.stop } }
        server.threaded = settings.threaded if server.respond_to? :threaded=
        set :running,true
      end
    end
  end
end

然后,在您的独立应用程序中：

app.rb

require 'sinatra'
require 'sinatra_ssl'

set :port,8443
set :ssl_certificate,"server.crt"
set :ssl_key,"server.key"

get "/" do
  "Hello world!"
end