如何修复 "Errno::ENOENT: No such file or directory @ rb_sysopen"？

Question

编码超级新手！我用 rails new.

创建了一个新项目

我正在尝试抓取网站，但出现错误 Errno::ENOENT: No such file or directory @ rb_sysopen

require 'open-uri'
require 'nokogiri'
require 'pry'

def get_page
    link = "https://www.pokemon.com/us/pokedex/"
    doc = Nokogiri::HTML(open(link))
    #rest of code
end

get_page

感谢任何帮助。谢谢！

Answer 1

link = "https://www.pokemon.com/us/pokedex/"
doc = Nokogiri::HTML(URI.open(link))

只需添加 URI

Answer 2

Kernel#open 打开文件、IO 流或子进程。它不打开 URI:

open(path [, mode [, perm]] [, opt]) → io or nil

open(path [, mode [, perm]] [, opt]) {|io| block } → obj

Creates an IO object connected to the given stream, file, or subprocess.

OpenURI is used by calling the URI::open method:

Method: URI.open

.open(name, *rest, &block) ⇒ Object

Allows the opening of various resources including URIs.

因此，您的代码应如下所示：

def get_page
  link = "https://www.pokemon.com/us/pokedex/"
  doc = Nokogiri::HTML(URI.open(link))
  #rest of code
end

如何修复 "Errno::ENOENT: No such file or directory @ rb_sysopen"？

How to fix "Errno::ENOENT: No such file or directory @ rb_sysopen"?

ruby

open-uri

ruby-on-rails

web-scraping

open(path [, mode [, perm]] [, opt]) → io or nil

open(path [, mode [, perm]] [, opt]) {|io| block } → obj

Method: URI.open