xml tutorials
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sxyx2008
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>net.aimeizi</groupId>
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<artifactId>xml-tutorials</artifactId>
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<version>1.0.0</version>
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</parent>
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<artifactId>xml-dom-example</artifactId>
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<packaging>jar</packaging>
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</project>
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+40
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package net.aimeizi.dom.example;
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import java.io.IOException;
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.parsers.DocumentBuilderFactory;
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import javax.xml.parsers.ParserConfigurationException;
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import org.w3c.dom.Document;
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import org.w3c.dom.NodeList;
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import org.xml.sax.SAXException;
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/**
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* 统计元素个数
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* @author welcome
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*
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*/
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public class CountXMLElement {
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public static void main(String argv[]) {
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try {
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DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
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DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
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Document doc = docBuilder.parse(ClassLoader.getSystemResourceAsStream("books.xml"));
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NodeList list = doc.getElementsByTagName("book");
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System.out.println("Total of elements : " + list.getLength());
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} catch (ParserConfigurationException pce) {
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pce.printStackTrace();
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} catch (IOException ioe) {
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ioe.printStackTrace();
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} catch (SAXException sae) {
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sae.printStackTrace();
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}
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}
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}
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package net.aimeizi.dom.example;
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import java.io.File;
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.parsers.DocumentBuilderFactory;
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import javax.xml.transform.OutputKeys;
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import javax.xml.transform.Transformer;
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import javax.xml.transform.TransformerFactory;
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import javax.xml.transform.dom.DOMSource;
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import javax.xml.transform.stream.StreamResult;
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import org.w3c.dom.Document;
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import org.w3c.dom.Element;
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public class DomCreateXML {
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public static void main(String[] args) throws Exception{
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DocumentBuilder builder=DocumentBuilderFactory.newInstance().newDocumentBuilder();
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Document document = builder.newDocument();
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Element rootElement=document.createElement("root");
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for (int i = 0; i < 100; i++) {
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Element bookElement=document.createElement("book");
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bookElement.setAttribute("id", (i+1)+"");
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Element nameElement=document.createElement("name");
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nameElement.setTextContent("Spring");
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Element priceElement=document.createElement("price");
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priceElement.setTextContent("88");
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Element authorElement=document.createElement("author");
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authorElement.setTextContent("李刚");
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rootElement.appendChild(bookElement);
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bookElement.appendChild(nameElement);
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bookElement.appendChild(priceElement);
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bookElement.appendChild(authorElement);
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}
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document.appendChild(rootElement);
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TransformerFactory factory=TransformerFactory.newInstance();
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Transformer transformer=factory.newTransformer();
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transformer.setOutputProperty(OutputKeys.ENCODING, "utf-8");
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transformer.transform(new DOMSource(document), new StreamResult(new File("target/1.xml")));
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}
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}
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package net.aimeizi.dom.example;
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import java.io.IOException;
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.parsers.DocumentBuilderFactory;
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import javax.xml.parsers.ParserConfigurationException;
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import org.w3c.dom.Document;
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import org.w3c.dom.Element;
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import org.w3c.dom.NodeList;
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import org.xml.sax.SAXException;
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/**
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* 使用dom解析xml
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* @author welcome
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*
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*/
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public class DomXmlParser {
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public static void main(String[] args) {
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DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
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DocumentBuilder documentBuilder = null;
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try {
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documentBuilder = factory.newDocumentBuilder();
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} catch (ParserConfigurationException e) {
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e.printStackTrace();
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}
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Document document = null;
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try {
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document = documentBuilder.parse(ClassLoader.getSystemResourceAsStream("books.xml"));
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} catch (SAXException e) {
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e.printStackTrace();
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} catch (IOException e) {
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e.printStackTrace();
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}
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Element element = document.getDocumentElement();
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NodeList nodeList = element.getElementsByTagName("book");
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for (int i = 0; i < nodeList.getLength(); i++) {
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Element book = (Element) nodeList.item(i);
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String id = book.getAttribute("id");
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Element bookname = (Element) book.getElementsByTagName("name")
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.item(0);
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String name = bookname.getFirstChild().getNodeValue();
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Element bookauthor = (Element) book.getElementsByTagName("author")
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.item(0);
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String author = bookauthor.getFirstChild().getNodeValue();
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Element bookprice = (Element) book.getElementsByTagName("price")
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.item(0);
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String price = bookprice.getFirstChild().getNodeValue();
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Element bookpubinfo = (Element) book
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.getElementsByTagName("pubinfo").item(0);
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String pubinfo = bookpubinfo.getFirstChild().getNodeValue();
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System.out.println(id + "," + name + "," + author + "," + price
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+ "," + pubinfo);
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}
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}
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}
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+96
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package net.aimeizi.dom.example;
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import java.io.File;
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import java.io.IOException;
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import javax.xml.parsers.DocumentBuilder;
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import javax.xml.parsers.DocumentBuilderFactory;
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import javax.xml.parsers.ParserConfigurationException;
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import javax.xml.transform.Transformer;
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import javax.xml.transform.TransformerException;
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import javax.xml.transform.TransformerFactory;
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import javax.xml.transform.dom.DOMSource;
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import javax.xml.transform.stream.StreamResult;
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import org.w3c.dom.Document;
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import org.w3c.dom.Element;
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import org.w3c.dom.NamedNodeMap;
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import org.w3c.dom.Node;
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import org.w3c.dom.NodeList;
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import org.xml.sax.SAXException;
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/**
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* 编辑xml
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* @author welcome
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*
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*/
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public class ModifyXMLFile {
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public static void main(String argv[]) {
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try {
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DocumentBuilderFactory docFactory = DocumentBuilderFactory.newInstance();
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DocumentBuilder docBuilder = docFactory.newDocumentBuilder();
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Document doc = docBuilder.parse(ClassLoader.getSystemResourceAsStream("file.xml"));
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// Get the root element
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//Node company = doc.getFirstChild();
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// Get the staff element , it may not working if tag has spaces, or
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// whatever weird characters in front...it's better to use
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// getElementsByTagName() to get it directly.
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// Node staff = company.getFirstChild();
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// Get the staff element by tag name directly
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Node staff = doc.getElementsByTagName("staff").item(0);
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// update staff attribute
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NamedNodeMap attr = staff.getAttributes();
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Node nodeAttr = attr.getNamedItem("id");
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nodeAttr.setTextContent("2");
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// append a new node to staff
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Element age = doc.createElement("age");
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age.appendChild(doc.createTextNode("28"));
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staff.appendChild(age);
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// loop the staff child node
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NodeList list = staff.getChildNodes();
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for (int i = 0; i < list.getLength(); i++) {
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Node node = list.item(i);
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// get the salary element, and update the value
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if ("salary".equals(node.getNodeName())) {
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node.setTextContent("2000000");
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}
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//remove firstname
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if ("firstname".equals(node.getNodeName())) {
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staff.removeChild(node);
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}
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}
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// write the content into xml file
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TransformerFactory transformerFactory = TransformerFactory.newInstance();
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Transformer transformer = transformerFactory.newTransformer();
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DOMSource source = new DOMSource(doc);
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StreamResult result = new StreamResult(new File("target/file.xml"));
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transformer.transform(source, result);
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System.out.println("Done");
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} catch (ParserConfigurationException pce) {
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pce.printStackTrace();
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} catch (TransformerException tfe) {
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tfe.printStackTrace();
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} catch (IOException ioe) {
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ioe.printStackTrace();
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} catch (SAXException sae) {
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sae.printStackTrace();
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}
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}
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}
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@@ -0,0 +1,33 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<data>
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<book id="1">
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<name>Android应用开发详解</name>
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<author>json</author>
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<price>88</price>
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<pubinfo>人民邮电出版社</pubinfo>
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</book>
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<book id="2">
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<name>Android权威指南</name>
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<author>tom</author>
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<price>79</price>
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<pubinfo>人民教育出版社</pubinfo>
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</book>
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<book id="3">
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<name>Android开发案例大全</name>
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<author>mark</author>
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<price>68</price>
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<pubinfo>电子工业出版社</pubinfo>
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</book>
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<book id="4">
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<name>Android从入门到精通</name>
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<author>jack</author>
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<price>68</price>
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<pubinfo>电子工业出版社</pubinfo>
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</book>
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<book id="5">
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<name>Pro Spring</name>
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<author>mark</author>
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<price>68</price>
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<pubinfo>电子工业出版社</pubinfo>
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</book>
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</data>
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@@ -0,0 +1,9 @@
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<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
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<company>
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<staff id="1">
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<firstname>yong</firstname>
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<lastname>mook kim</lastname>
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<nickname>mkyong</nickname>
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<salary>100000</salary>
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</staff>
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</company>
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