Question

我写了一个简单的Ruby脚本，与Google搜索的建议API进行了对话。

通过更改“查询”变量，您可以定义要求API的内容。适用于英语，但德语变音符号似乎会导致一些编码问题。在下面的例子中，我使用了“Tür”（门）这个词来证明这个问题。

#!/usr/bin/env ruby
# encoding: UTF-8

require 'nokogiri'
require 'open-uri'

query = 'Tür'
uri = URI.encode("http://suggestqueries.google.com/complete/search?output=toolbar&hl=de&q=#{query}")
puts uri
puts '----------'

xml_doc = Nokogiri::XML(open(uri)) 
puts xml_doc
puts '----------'

xml_doc.xpath('.//suggestion').each do |suggestion| 
  puts suggestion.attr('data')
end

输出：

http://suggestqueries.google.com/complete/search?output=toolbar&hl=de&q=T%C3%BCr
----------
element suggestion: output error : invalid character value
<?xml version="1.0"?>
<toplevel>
  <CompleteSuggestion>
    <suggestion data="t&#xFC;rkei"/>
  </CompleteSuggestion>
  <CompleteSuggestion>
    <suggestion data="t?rkis"/>
  </CompleteSuggestion>
  <CompleteSuggestion>
    <suggestion data="t?rkei news"/>
  </CompleteSuggestion>
  <CompleteSuggestion>
    <suggestion data="t?rkiye"/>
  </CompleteSuggestion>
  <CompleteSuggestion>
    <suggestion data="t?ren"/>
  </CompleteSuggestion>
  <CompleteSuggestion>
    <suggestion data="t?rstopper"/>
  </CompleteSuggestion>
  <CompleteSuggestion>
    <suggestion data="t?rschloss"/>
  </CompleteSuggestion>
  <CompleteSuggestion>
    <suggestion data="t?rkisch deutsch"/>
  </CompleteSuggestion>
  <CompleteSuggestion>
    <suggestion data="t?renheld"/>
  </CompleteSuggestion>
  <CompleteSuggestion>
    <suggestion data="t?rkisch"/>
  </CompleteSuggestion>
</toplevel>
----------
t?rkei
t?rkis
t?rkei news
t?rkiye
t?ren
t?rstopper
t?rschloss
t?rkisch deutsch
t?renheld
t?rkisch

如您所见，uri有效，API返回XML数据。但是打印的数据已经存在这些编码错误，我怀疑Nokogiri配置错误，因为它在Chrome中运行良好。它也说：

元素建议：输出错误：字符值无效

有谁知道如何解决这个问题？太棒了！

Answer 1

试试这个：

xml_doc = open(url) { |io| Nokogiri::XML(io.read.encode('UTF-8')) }

Nokogiri - XML编码问题

1 个答案: