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| MbXPath Problem |
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| deepnair |
 Posted: Tue Apr 03, 2012 2:22 pm Post subject: MbXPath Problem |
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Apprentice
Joined: 07 Feb 2012
Posts: 35
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Im trying for an XPath in my java code, the first one below i.e. getFirstElementByPath works and returns the value but when i xpath, its not working, the node list size returned is 0.
The below code works
| Code: |
outBody.getFirstElementByPath("./se:Envelope/se:Header/aa:Action").getValue().toString()
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But when I try an xpath it does not work
| Code: |
MbXPath xPath = new MbXPath("./se:Envelope/se:Header/aa:Action");
xPath.addNamespacePrefix("se",
"http://www.w3.org/2003/05/soap-envelope");
xPath.addNamespacePrefix("def", "http://def.com/envelope");
xPath.addNamespacePrefix("aa", "http://aa.com/aaV001");
List listHeader = (List) outBody.evaluateXPath(xPath);
log.debug("# of elements is ** - " + listHeader.size());
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Why is xpath not pointing to the element though it exists ?
Thanks,
Deep Nair |
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| fjb_saper |
| Posted: Tue Apr 03, 2012 7:43 pm Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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Have you taken a user trace to see why the xpath is not working? 
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MQ & Broker admin |
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| mqsiuser |
| Posted: Tue Apr 03, 2012 8:50 pm Post subject: Re: MbXPath Problem |
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Yatiri
Joined: 15 Apr 2008
Posts: 637
Location: Germany
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| Code: |
outBody.getFirstElementByPath("./se:Envelope/se:Header/aa:Action").getValue().toString()
MbXPath xPath = new MbXPath("./se:Envelope/se:Header/aa:Action"); |
1. It says "get by path" and not "get by xpath"
2 . Read w3schools (the parts on xPath), and then the w3c standard/recommendation on xpath
3. Use an xpath editor or xml editor, e.g. oXygen (rightclick there on an xml element/attribute and select "copy XPath")
4. Try removing the leading dot (.)
5. Recheck if your namespaces are correctly set, e.g. you are defining "def" (seems like for envelope), but then use "se:" (for the envelope)
6. Indicate your (exact) intentions (this will help the parser to perform better):
| Code: |
| MbXPath("/se:Envelope[1]/se:Header[1]/aa:Action[1]"); |
If nothing matches your xPath expression the result (node set) will just be empy (and you will not have an exception/error)... so if there really/actually should be something (returning from your query) I suppose it is up to you to throw an exception (base on a check for "is empty" on the xpath-result-set).
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Just use REFERENCEs |
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| zhumingvictor |
| Posted: Fri May 10, 2013 7:43 am Post subject: |
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Novice
Joined: 10 May 2013
Posts: 17
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| Hi, I am having the same problem. Did you get it solved? |
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