в 17:43, 31 мая 2010

2010-05-31T17:43:48Z

Admin: 1 версия

2010-05-31T14:15:36Z

1 версия

Новая страница

== Element: getElementsByTagName(String name) ==



<source lang="java">
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;
public class MainClass {
public static void main(String[] args) throws Exception {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setValidating(true);
DocumentBuilder builder = factory.newDocumentBuilder();
Document doc = builder.parse("yourFile.xml");
Element rootElement = doc.getDocumentElement();
NodeList children = rootElement.getChildNodes();
Node current = null;
int count = children.getLength();
for (int i = 0; i < count; i++) {
current = children.item(i);
if (current.getNodeType() == Node.ELEMENT_NODE) {
Element element = (Element) current;
if (element.getTagName().equalsIgnoreCase("tableOfContents")) {
// Get the list of <tocEntry> items
NodeList tocitems = element.getElementsByTagName("tocEntry");
// Obtain a reference to the second one
Node secondChild = tocitems.item(1);
// Create a new <tocEntry> element
Element newTOCItem = doc.createElement("tocEntry");
// Create a new "Help" text node
Text newText = doc.createTextNode("Help");
// Make it a child of the new <tocEntry> element
// <tocEntry>Help</tocEntry>
newTOCItem.appendChild(newText);
// Add the new <tocEntry> element to <tableOfContents>
element.insertBefore(newTOCItem, secondChild);
}
}
}
System.out.println(doc.getDocumentElement());
}
}
</source>



== Element: NodeList getChildNodes() ==



<source lang="java">

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
public class MainClass {
public static void main(String[] args) throws Exception {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setValidating(true);
DocumentBuilder builder = factory.newDocumentBuilder();
Document doc = builder.parse("yourFile.xml");
Element rootElement = doc.getDocumentElement();
NodeList children = rootElement.getChildNodes();
Node current = null;
int count = children.getLength();
for (int i = 0; i < count; i++) {
current = children.item(i);
if (current.getNodeType() == Node.ELEMENT_NODE) {
Element element = (Element) current;
if (element.getTagName().equalsIgnoreCase("tableOfContents")) {
element.setAttribute("showPageNumbers", "no");
}
}
}
System.out.println(doc.getDocumentElement());
}
}
</source>



== Element: setAttribute(String name, String value) ==



<source lang="java">
/*

<?xml version="1.0" encoding="UTF-8"?>
<book id="javanut4">
<chapter>
<title>Chapter 1</title>
<para/>
</chapter>
<chapter>
<title>Chapter 2</title>
<para/>
</chapter>
<chapter>
<title>Chapter 3</title>
<para/>
</chapter>
</book>
*/
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.transform.Transformer;
import javax.xml.transform.TransformerFactory;
import javax.xml.transform.dom.DOMSource;
import javax.xml.transform.stream.StreamResult;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
public class MainClass {
public static void main(String[] args) throws Exception{
DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = dbf.newDocumentBuilder();
Document document = db.newDocument();
Element book = document.createElement("book");
book.setAttribute("id", "javanut4");
document.appendChild(book);
for(int i = 1; i <= 3; i++) {
Element chapter = document.createElement("chapter");
Element title = document.createElement("title");
title.appendChild(document.createTextNode("Chapter " + i));
chapter.appendChild(title);
chapter.appendChild(document.createElement("para"));
book.appendChild(chapter);
}
TransformerFactory tf = TransformerFactory.newInstance();
Transformer transformer = tf.newTransformer();
DOMSource source = new DOMSource(document);
StreamResult result = new StreamResult(System.out);
transformer.transform(source, result);
}
}

</source>



== Element: String getTagName() ==



<source lang="java">

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
public class MainClass {
public static void main(String[] args) throws Exception {
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
factory.setValidating(true);
DocumentBuilder builder = factory.newDocumentBuilder();
Document doc = builder.parse("yourFile.xml");
Element rootElement = doc.getDocumentElement();
NodeList children = rootElement.getChildNodes();
Node current = null;
for (int i = 0; i < children.getLength(); i++) {
current = children.item(i);
if (current.getNodeType() == Node.ELEMENT_NODE) {
Element element = (Element) current;
if (element.getTagName().equalsIgnoreCase("tableOfContents")) {
rootElement.removeChild(element);
}
}
}
System.out.println(doc.getDocumentElement());
}
}
</source>

← Предыдущая	Версия 17:43, 31 мая 2010
(нет различий)

Java by API/org.w3c.dom/Element - История изменений

в 17:43, 31 мая 2010

Admin: 1 версия