I have this xml file and I want to get some values with Xpath.
The half of job is done but I get some trouble in the last part of file(States Node)
<?xml version="1.0" encoding="UTF-8"?>
<favoris>
<workflow codewf="wf1000">
<information>
<title>wf1</title>
<desc>description 1</desc>
<nberState>2</nberState>
<text>text text text text text text text</text>
</information>
<states>
<state id="1" IDemployee="2">description1</state>
<state id="2" IDemployee="3">description2</state>
</states>
</workflow>
<workflow codewf="wf2000">
<information>
<title>wf2</title>
<desc>description 2</desc>
<nberState>3</nberState>
<text>text text text text text text text</text>
</information>
<states>
<state id="1" IDemployee="3">description1</state>
<state id="2" IDemployee="2">description2</state>
<state id="3" IDemployee="4">description2</state>
</states>
</workflow>
</favoris>
And here the java code: package myxml;
import java.io.FileReader;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathFactory;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
public class xmlParty {
public static void main(String[] args) throws Exception {
XPathFactory factory = XPathFactory.newInstance();
XPath xPath = factory.newXPath();
NodeList favoris = (NodeList) xPath.evaluate("/favoris/workflow[@codewf='wf1000']",
new InputSource(new FileReader("a.xml")),
XPathConstants.NODESET);
for (int i = 0; i < favoris.getLength(); i++) {
Element workflow = (Element) favoris.item(i);
String title = xPath.evaluate("information/title", workflow);
String desc_w = xPath.evaluate("information/desc", workflow);
String nberState = xPath.evaluate("information/nberState", workflow);
String text = xPath.evaluate("information/text", workflow);
System.out.println(workflow.getAttribute("codewf") +" "+title + " " + desc_w + " " + nberState + " " + text );
NodeList States = (NodeList)xPath.evaluate("states/state", workflow, XPathConstants.NODESET);
System.out.println(States.getLength());
for (int k = 0; k < States.getLength(); k++) {
String desc_state = xPath.evaluate("states/state", workflow);
System.out.println(desc_state );
}
}
}
}
and the output will be :
First example
wf1000 wf1 description 1 2 text text text text text text text
2
description1
description1
Second example
wf2000 wf2 description 2 3 text text text text text text text
3
description1
description1
description1
Looking at the state with ID 2, the text is description2
not description1
.
I think the parser don't move to the second child and it always still at the firsst child.
So how can I do and also how to do too to get the attribute of state????????
You will have to do something like:
for (int k = 0; k < States.getLength(); k++) {
String desc_state = xPath.evaluate("states/state[position()=" + (k + 1) + "]", workflow);
String id_employee = xPath.evaluate("states/state[position()=" + (k + 1) + "]/@IDemployee", workflow);
System.out.println(desc_state + ":" + id_employee);
}