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来源：互联网发布：统计学中观测数据定义编辑：程序博客网时间：2024/06/05 04:25

import java.io.File;
import java.io.IOException;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.Document;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.xml.sax.SAXException;

public class TestBook {

/**
* @param args
*/
public static void main(String[] args) {
   // 1.获得一个新 DocumentBuilderFactory 实例
   DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
   // 2.使用DocumentBuilderFactory 构建 DocumentBuilder
   DocumentBuilder db;
   String[] EachNode;
   String book1name = null;
   try {
    db = dbf.newDocumentBuilder();
    // 3.使用DocumentBuilder 的parse() 方法解析文件
    // 4.将已解析的文档存储在Document对象中
    Document document;
    document = db.parse(new File("book.xml"));
    // 5.使用 getElementsByTagName() 方法获得元素
    NodeList bookList = document.getElementsByTagName("book");

    EachNode = new String[bookList.getLength()];
    System.out.println("bookList.getLength()    "
      + bookList.getLength());

    // 获得所有的子节点
    for (int i = 0; i < bookList.getLength(); i++) {
     System.out.println("*********第" + i + "记录**************");

     Node n = bookList.item(i);
     System.out.println("   RootNode: " + n.getNodeName());
     NodeList chileNodeList = n.getChildNodes();
     for (int j = 0; j < chileNodeList.getLength(); j++) {
      Node chileNode = chileNodeList.item(j);
      // 如果元素结点是ELEMENT_NODE则打印出来
      // chileNode 此时可以是元素结点,文本结点,属性结点或其它类型的信息
      if (chileNode.getNodeType() == 1) {
       System.out.println("        NodeName: "
         + chileNode.getNodeName());
       System.out.println("        NodeType:   "
         + chileNode.getNodeType());
      }
      if (chileNode.getFirstChild() != null) {
       // System.out.print(chileNode.getNodeName());
       // System.out.println(":"
       // + chileNode.getFirstChild().getNodeValue());
       EachNode[j] = new String(chileNode.getFirstChild()
         .getNodeValue());
       System.out.println("        NodeValue:   " + EachNode[j]);
       System.out.println("     |------------");
      }

     }
    }
   } catch (SAXException e) {
    e.printStackTrace();
   } catch (IOException e) {
    e.printStackTrace();
   } catch (ParserConfigurationException e) {
    e.printStackTrace();
   }

}

解析xml原文件：book.xml

<?xml version="1.0" encoding="gb2312" ?>
<?xml-stylesheet type="text/xsl" href="bookxsl.xsl"?>
<books>
<book>
   <id>1</id>
   <bookname>数据库原理与应用</bookname>
   <author>陈红</author>
   <addtime>2001-04-05</addtime>
                <price>29</price>
</book>
<book>
   <id>2</id>
   <bookname>会计学</bookname>
   <author>刘景瑞</author>
   <addtime>2003-04-05</addtime>
                <price>29</price>
</book>
<book>
   <id>3</id>
   <bookname>Asp.net专业项目开发实例</bookname>
   <author>[美]Hersh Bhasin</author>
   <addtime>2002-04-05</addtime>
                <price>29</price>
</book>
<book>
   <id>4</id>
   <bookname>XML编程实例</bookname>
   <author>陈红，何川</author>
   <addtime>2001-03-05</addtime>
                <price>29</price>
</book>
<book>
   <id>5</id>
   <bookname>数据库原理与应用</bookname>
   <author>陈红</author>
   <addtime>2002-11-03</addtime>
                <price>29</price>
</book>
<book>
   <id>6</id>
   <bookname>数据库原理与应用</bookname>
   <author>陈红</author>
   <addtime>2002-06-05</addtime>
                <price>29</price>
</book>
<book>
   <id>7</id>
   <bookname>精通EJB</bookname>
   <author>[美]Ed Roman</author>
   <addtime>2003-01-02</addtime>
                <price>29</price>
</book>
<book>
   <id>8</id>
   <bookname>java中间件编程</bookname>
   <author>李水根</author>
   <addtime>2003-01-12</addtime>
                <price>29</price>
</book>
<book>
   <id>9</id>
   <bookname>jsp入门</bookname>
   <author>不知道</author>
   <addtime>2004－06－12</addtime>
                <price>29</price>
</book>
<book>
   <id>10</id>
   <bookname>powerBuilder8.0</bookname>
   <author>不知道</author>
   <addtime>2002－11－08</addtime>
                <price>29</price>
</book>
<book>
   <id>11</id>
   <bookname>Visual Studio.net Framework</bookname>
   <author>[美]Julian Templeman,David Vitter</author>
   <addtime>2003-10-23</addtime>
                <price>29</price>
</book>