How do I write an xpath expression to exctract a string from a node with attribute in it?

Question

<?xml version="1.0" encoding="UTF-8"?>
<IDMResponse xmlns="http://www.nrf-arts.org/IXRetail/namespace/" MajorVersion="1" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <ARTSHeader>
        <MessageID>1</MessageID>
        <Response ResponseCode="Ok">
            <RequestID>1</RequestID>
        </Response>
    </ARTSHeader>
</IDMResponse>

I tried
//[local-name() = 'Response'] and @//*[local-name() = 'Response']

score 0 · Answer 1 · answered Nov 04 '21 at 21:46

0

To access the <Response ResponseCode="Ok"> node you can use

//Response

To extract the Ok value from there this should work:

//Response/@ResponseCode

answered Nov 04 '21 at 21:46

Prophet

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How about the namespaces? – Siebe Jongebloed Nov 05 '21 at 17:12
For the given XML I see no need to add nothing. Please correct me if I'm missing something – Prophet Nov 06 '21 at 15:57
The xml is in a namespace. The Xpath wil not select anything. See [this answer](https://stackoverflow.com/questions/5239685/xml-namespace-breaking-my-xpath/5241062#5241062) – Siebe Jongebloed Nov 07 '21 at 16:53

Siebe Jongebloed · Accepted Answer · 2021-11-07T16:51:12.340

0

In stead of

//[local-name() = 'Response']

use

//*[local-name() = 'Response']

The predicate ([]) needs something to filter on.

// selects nothing. It tells to look for any descendant something. But it needs at least a following attribute or node to know what to do.

/* selects the root-node independend of name of element

//* selects all element-nodes independend of name

//@ selects all attributes independend of name

//Response selects all elements with the name Response that are not in a namespace

//*[local-name()='Response'] selects all elements with the name Response independend off a namespace

//*[local-name()='Response' and @ResponseCode='Ok'] selects all elements with the name Response(independend off a namespace) and that have a attribute ResponseCode with the value Ok

Here are some more examples.

And take a look at this answer

edited Nov 07 '21 at 16:51

answered Nov 07 '21 at 16:42

Siebe Jongebloed

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Thanks, Input: //*[local-name() = 'Response'] Output: 1 I am trying to get the value of the attribute 'Ok', Is there any way to extract that? – Adithya Sridharan Nov 08 '21 at 19:11
//*[local-name() = 'Response']/@*[local-name() = 'ResponseCode'] -- This worked – Adithya Sridharan Nov 08 '21 at 20:07
//*[local-name() = 'Response']/@ResponseCode will work as well. – Siebe Jongebloed Nov 09 '21 at 15:14

How do I write an xpath expression to exctract a string from a node with attribute in it?

2 Answers2