CODEWITHSUNDEEP
java
yonan2236
yonan2236

Reputation: 13649

xPath.evaluate only returns a single node

I have the following XML structure:

...
...
  <CON>
    <LANGUAGES>
      <LANGUAGE>Deutsch</LANGUAGE> 
      <LANGUAGE>English</LANGUAGE> 
    </LANGUAGES>
  <CON>
  ...
  ...

Using my code below, I'm trying to retrieve the languages but when I try to print the length of the node list, it only returns 1.

XPath xPath = XPathFactory.newInstance().newXPath();
NodeList nl = (NodeList)xPath.evaluate("/CU_DATA/CU/CON/LANGUAGES", document, XPathConstants.NODESET);                                  

System.out.println(nl.getLength()); 
// Output: 1

How can I get the two languages?

Upvotes: 1

Views: 787

Answers (2)

codeMan
codeMan

Reputation: 5758

try : 

NodeList nl = (NodeList)xPath.evaluate("/CU_DATA/CU/CON/LANGUAGES//LANGUAGE", document, XPathConstants.NODESET);

or

NodeList nl = (NodeList)xPath.evaluate("/CU_DATA/CU/CON/LANGUAGES//*", document, XPathConstants.NODESET);

/ is used to separate the nodes where as // returns all the nodes recursively

Upvotes: 0

Jon Skeet
Jon Skeet

Reputation: 1500893

How can I get the two languages?

By asking for the LANGUAGE elements instead of LANGUAGES - after all, there is only one LANGUAGES element. So something like this:

NodeList nl = (NodeList)xPath.evaluate("/CU_DATA/CU/CON/LANGUAGES/LANGUAGE",
                                       document, XPathConstants.NODESET);

Alternatively, find the LANGUAGES element as you're currently doing, and then just fetch all the child nodes.

Upvotes: 3

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