Question

我需要从下面列出的html中提取实际的电话号码，但我不确定如何使用Nokogiri CSS，因为它周围没有html标签。当at_css（.phonetitle）它只解析Phone而不是数字。

<div class="detail">
    <span class="address">Corner of Toorak Road and Chapel Street, South Yarra</span><br>
    <span class="phonetitle">Phone</span> 95435 34341
    <br><br>
</div>

Answer 1

没有一点XPath无法处理：

#!/usr/bin/env ruby
require 'nokogiri'

doc = Nokogiri::HTML(<<-HERE)
  <div class="detail">
    <span class="address">
      Corner of Toorak Road and Chapel Street, South Yarra
    </span><br>
    <span class="phonetitle">Phone</span> 95435 34341
    <br><br>
  </div>
HERE

puts doc.search('*[@class="detail"]/text()').text.strip
# => 95435 34341

Answer 2

试试这个：

public static final int MAX_HTML_TAG_LENGTH = 10;  
public static final String[] REGEX_HTTP_TAG_FILTER = new String[] {
            "[\\t\\n\\r\\f]+",
            "<(s|S)(c|C)(r|R)(i|I)(p|P)(t|T)[^>]*>.+?</(s|S)(c|C)(r|R)(i|I)(p|P)(t|T)>",
            "<(s|S)(t|T)(y|Y)(l|L)(e|E)[^>]*>.+?</(s|S)(t|T)(y|Y)(l|L)(e|E)>",
            "<[a-zA-Z]{1," + MAX_HTML_TAG_LENGTH + "}\\s*[^>]*>",
            "</[a-zA-Z]{1," + MAX_HTML_TAG_LENGTH + "}>", "<!--.+?-->",
            "&nbsp;",
            "[ ]{2,}+"
 };

for (int i = 0; i < REGEX_HTTP_TAG_FILTER.length; i++) {
            result = result.replaceAll(REGEX_HTTP_TAG_FILTER[i], " ");
}

Answer 3

这是用于查找电话号码的XPath表达式：

*[@class='phonetitle']/following-sibling::text()

Python中的示例（您可以使用@Jörg W Mittag's answer将其移植到Ruby和nokogiri）：

#!/usr/bin/env python
from lxml import html

doc = html.fromstring("""
  <div class="detail">
    <span class="address">
      Corner of Toorak Road and Chapel Street, South Yarra
    </span><br>
    <span class="phonetitle">Phone</span> 95435 34341
    <br><br>
  </div>
""")

pn, = doc.xpath("*[@class='phonetitle']/following-sibling::text()")
print pn.strip()
# -> 95435 34341

Answer 4

这很容易解析，因为电话号码本身没有明确的包装。它不是自己的或。

如果你把整个事情都搞砸了javascript，我想你可以通过使用split（）方法将其分解。

var string = '<div class="detail">
    <span class="address">Corner of Toorak Road and Chapel Street, South Yarra</span><br>
    <span class="phonetitle">Phone</span> 95435 34341
    <br><br>
</div>';

var a = string.split('Phone</span>');
var b = string.split('<br>',a[1]);
return b[0];

解析没有HTML标记的数据

4 个答案: