xpath can not get nodes with namespace

Question

I have a huge xml document. When I test with xpath = //requestHeader returned result is below:

  <requestHeader> 
      <!--Optional:-->  
      <req:clientCode xmlns:req="http://www.ibb.com/ws/requestHeader">?</req:clientCode>  
      <!--Optional:-->  
      <req:clientUsername xmlns:req="http://www.ibb.com/ws/requestHeader">CC</req:clientUsername>  
      <!--Optional:-->  
      <req:channel xmlns:req="http://www.ibb.com/ws/requestHeader">?</req:channel>  
      <!--Optional:-->  
    </requestHeader>

And more, I need to get clientUsername value. Unfortunately //requestHeader//req:clientUsername returns empty string. what is wrong with it?

You can test with: http://www.xpathtester.com/test

Have you specified the namespace context for req in you parser? — John B
– John B, Commented Sep 24, 2013 at 18:57
Depends on the API to the XPath engine you are using, which you haven't specified. — Michael Kay
– Michael Kay, Commented Sep 24, 2013 at 21:31

John B · Accepted Answer · 2013-09-24 19:02:38Z

1

Try specifying req in the namespaceContext:

XPath.setNamespaceContext

answered Sep 24, 2013 at 19:02

John B

33.1k8 gold badges80 silver badges100 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

DeadlyDan · Accepted Answer · 2013-09-24 19:28:31Z

0

put your namespace at the top the xml file like this:

<?xml version="1.0" encoding="UTF-8"?>
<requestHeader  xmlns:req="http://www.ibb.com/ws/requestHeader"> 
  <!--Optional:-->  
  <req:clientCode>?</req:clientCode>  
  <!--Optional:-->  
  <req:clientUsername>CC</req:clientUsername>  
  <!--Optional:-->  
  <req:channel>?</req:channel>  
  <!--Optional:-->  
</requestHeader>

now you can use xpath like so

 //requestHeader/req:clientUsername

edited Sep 24, 2013 at 19:28

answered Sep 24, 2013 at 19:23

DeadlyDan

7092 gold badges8 silver badges20 bronze badges

Collectives™ on Stack Overflow

xpath can not get nodes with namespace

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related