属性值以特定字符串结尾的元素的XPath？

[英]XPath for element whose attribute value ends with a specific string?

本文翻译自 Happy Bird 查看原文 2016/12/02 2771 xpath/ ends-with/ xml/ html

Given that the HTML contains:

鉴于HTML包含：

  <div tagname="779853cd-355b-4242-8399-dc15f95b3276_Destination" class="panel panel-default"></div>

How do we write the following expression in XPath:

我们如何在XPath中编写以下表达式：

Find a <div> element whose tagname attribute ends with the string 'Destination'

找到一个

元素，其tagname属性以字符串'Destination'结尾

I've been searching for days and I can't come up with something that works. Among many, I tried for example:

我一直在寻找几天，我无法想出一些有用的东西。在众多中，我试过例如：

div[contains(@tagname, 'Destination')]

4 个解决方案

#1

XPath 2.0

//div[ends-with(@tagname, 'Destination')]

XPath 1.0

//div[substring(@tagname,string-length(@tagname) -string-length('Destination') +1) 
      = 'Destination']

#2

XPath 2 or 3: There's always regex.

XPath 2或3：总是正则表达式。

.//div[matches(@tagname,".*_Destination$")]

#3

You can use ends-with (Xpath 2.0)

你可以使用ends-with（Xpath 2.0）

//div[ends-with(@tagname, 'Destination')]

#4

You could use the below xpath which will work with Xpath 1.0

您可以使用下面的xpath，它将与Xpath 1.0一起使用

//div[string-length(substring-before(@tagname, 'Destination')) >= 0 and string-length(substring-after(@tagname, 'Destination')) = 0 and contains(@tagname, 'Destination')]

// div [string-length（substring-before（@ pentame，'Destination'））> = 0和string-length（substring-after（@ pentame，'Destination'））= 0并包含（@tagname，'Destination “）]

Basically it checks if there is any string ( or no strings ) before the first occurrence of Destination but there should not be any text after the Destination

基本上它会在第一次出现Destination之前检查是否有任何字符串（或没有字符串），但是在Destination之后不应该有任何文本

Test input :

测试输入：

<root>
<!--Ends with Destination-->
<div tagname="779853cd-355b-4242-8399-dc15f95b3276_Destination" class="panel panel-default"></div>
<!--just Destination-->
<div tagname="Destination" class="panel panel-default"></div>
<!--Contains Destination-->
<div tagname="779853cd-355b-4242-8399-dc15f95b3276_Destination_some_text" class="panel panel-default"></div>
<!--Doesn't contain destination-->
<div tagname="779853cd-355b-4242-8399-dc15f95b3276" class="panel panel-default"></div>
</root>

Test output:

测试输出：

<div class="panel panel-default"
     tagname="779853cd-355b-4242-8399-dc15f95b3276_Destination"/>
<div class="panel panel-default" tagname="Destination"/>

注意！

本站翻译的文章，版权归属于本站，未经许可禁止转摘，转摘请注明本文地址：http://www.silva-art.net/blog/2016/12/02/d472621020a9d93129605ae09889430e.html。

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