问与Rails一起打开OpenURI::open无法从本地主机加载JSON

EN

require "json"
require "open-uri"

class FoobarController < ApplicationController
    def get
        render json: { foo: 1, bar: 2 }
    end

    def output
        data = open("http://localhost:3000/foobar/get").read
        puts(JSON.parse(data))
    end
end