Hello.
I am building a XML reader class DOM.
Does anyone have a link that has some code where
the text from a JComboBox.selectedItem()("text")
for example or any text is used to find a Node in a the DOM document
and then work with that nodes siblings?
Hello.
I am building a XML reader class DOM.
Does anyone have a link that has some code where
the text from a JComboBox.selectedItem()("text")
for example or any text is used to find a Node in a the DOM document
and then work with that nodes siblings?
Hello.
How can I print out the values of all the tags below the <keyName key="cmaj">
I can only get the first one.
Is it possible to retrieve each of the name of the <element> of each of the elements below <keyName="cmaj"> ?
<?xml version="1.0" encoding="utf-8" ?>
<data>
<keyName key="cmaj">
<name>
<![CDATA[C Major]]>
</name>
<sigtxt>
<![CDATA[NO_#_NO_b]]>
</sigtxt>
<relatonetxt>
<![CDATA[g#]]>
</relatonetxt>
......25 more
[/code]
[code]
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package keycardsxml;
/**
*
* @author depot
*/
import java.io.File;
import javax.swing.JFrame;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
public class XMLReaderProgressions extends KeyCards {
private String name;
public Document doc;
public XMLReaderProgressions() {
}
public void readAll(String name) {
this.name = name;
File docFile = new File("keycards.xml");
doc = null;
try {
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
doc = db.parse(docFile);
} catch (java.io.IOException e) {
System.out.println("Can't find the file");
} catch (Exception e) {
System.out.print("Problem parsing the file.");
}
Element root = doc.getDocumentElement();
System.out.println("The root element is " + root.getNodeName() + ".\n");
NodeList listOfKeys = root.getElementsByTagName("keyName");
for (int x = 0; x < listOfKeys.getLength(); x++) {
Node keyNode = listOfKeys.item(x);
if (keyNode.getNodeType() == Node.ELEMENT_NODE) {
Element keyElement = (Element) keyNode;
Attr keyNameAttributes = keyElement.getAttributeNode("keyname");
if (keyNameAttributes.getNodeValue().equals(name)) {
System.out.println("The param sent to class: " + name);
//this finds ->cmaj
System.out.println("The attr retrieved: " + keyNameAttributes);
//this finds the attr i need ->keyname="cmaj"
//I thought this list would contain all the elements below my
//keyElement I stopped on
NodeList list = listOfKeys.item(x).getChildNodes();
String keyNameSiblingValue = null;
for (int i = 0; i < list.getLength(); i++) {
String value = ((Node) list.item(i)).getNodeValue().trim();
if (value.equals("") || value.equals("/r")) {
continue;
} else {
keyNameSiblingValue = value;
//this only outputs the first element "sibling"
System.out.println("The keyNameSiblingValues are: " + keyNameSiblingValue);
// ->C Major
}
}
}
/*
NodeList list = keyNameElement.getChildNodes();
String keyname = null;
for (int i = 0; i < list.getLength(); i++) {
String value = ((Node) list.item(i)).getNodeValue().trim();
if (value.equals("") || value.equals("/r")) {
continue;
} else {
keyname = value;
System.out.println("The keynames are: " + keyname);
}
}
*/
}
}
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
output:
The root element is data.
The param sent to class: cmaj
The attr retrieved: keyname="cmaj"
The keyNameSiblingValues are: C Major
The root element is data.
The param sent to class: cmaj
The attr retrieved: keyname="cmaj"
The keyNameSiblingValues are: C Major
I don't understand why I can only get the first child below the element I am working with.
There are actually 51 in the XML doc.
Is there a way to retrieve these children?
//I thought this list would contain all the elements below my
//keyElement I stopped on
NodeList list = (NodeList) listOfKeys.item(x).getChildNodes();
Element elementFound = (Element) listOfKeys.item(x);
//51 elements below elementFound
if (elementFound.getNodeType() == Node.ELEMENT_NODE) {
NodeList children = (NodeList) elementFound.getChildNodes();
int childrenCount = children.getLength();
int charCount = list.item(x).getNodeValue().length();
for (int z = 0; z < childrenCount; z++) {
System.out.println("children: " + childrenCount);
/*
String keyNameSiblingValue = null;
for (int i = 0; i < charCount; i++) {
String value = ((Node) list.item(z)).getNodeValue().trim();
if (value.equals("") || value.equals("/r")) {
continue;
} else {
keyNameSiblingValue = value;
//this only outputs the first element "sibling"
System.out.println("The keyNameSiblingValues are: " + keyNameSiblingValue);
// ->C Major
}
}
*/
}
}
}output
run:
The root element is data.
The param sent to class: cmaj
The attr retrieved: keyname="cmaj"
children: 3
children: 3
children: 3
The root element is data.
The param sent to class: cmaj
The attr retrieved: keyname="cmaj"
children: 3
children: 3
children: 3
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