jdom解析xml

package cn.com.jdom;

import java.io.File;
import java.io.IOException;
import java.util.Iterator;
import java.util.List;

import org.jdom.Attribute;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.JDOMException;
import org.jdom.ProcessingInstruction;
import org.jdom.input.SAXBuilder;

import com.sun.xml.internal.bind.v2.runtime.Name;

/**
 * jdom解析xml文件
 *
 * @author ly *
 */
public class JDomXML {

 public JDomXML() {
 }

 /**
  * 解析xml文件
  * @param xmlFile
  */
 public void parseXml(File xmlFile) {
  SAXBuilder sax = new SAXBuilder();//在内存中建立一个sax文档模型
  try {
   Document xmlDom = sax.build(xmlFile);//创建文档
   //获得文件的根元素
   Element root = xmlDom.getRootElement();
   System.out.println("根元素是:"+root.getName());
   
   //获得根元素的子节点
   List childList = root.getChildren();
   Iterator listIt = childList.iterator();
   while(listIt.hasNext()){
    Element element = (Element)listIt.next();
    System.out.println("孩子结点是:"+element.getName());
   }
   
   //获得第一个孩子结点
   Element firstChild = (Element) childList.get(0);
   //获得孩子结点的属性
   List attrList = firstChild.getAttributes();
   Iterator attrIt = attrList.iterator();
   while(attrIt.hasNext()){
    Attribute  attr = (Attribute ) attrIt.next();
    System.out.println("第一个元素的属性是:"+attr.getName());
    //获得属性的值
    System.out.println("属性的值是:"+attr.getValue());
    //获得属性的类型
    System.out.println("属性的类型是:"+attr.getAttributeType());
   }
   
   List sonList = firstChild.getChildren();
   Iterator sonIt = sonList.iterator();
   while(sonIt.hasNext()){
    Element temp = (Element)sonIt.next();
    System.out.println("属性"+temp.getName()+"的值是:"+temp.getValue());
   }
   
   
  } catch (JDOMException e) {
   e.printStackTrace();
  } catch (IOException e) {
   e.printStackTrace();
  }
 }
 
 public static void main(String[] args) {
  JDomXML test = new JDomXML();
  test.parseXml(new File("persons.xml"));
 }
}

下面是xml文件:

<?xml version="1.0" encoding="UTF-8"?>
<persons>
 <person perid="1001">
  <name>lhu</name>
  <age>89</age>
  <address>安徽淮北</address>
  <sex>男</sex>
 </person>
 
 <person perid="1002">
  <name>we</name>
  <age>56</age>
  <address>北京海淀</address>
  <sex>女</sex>
 </person>
</persons>

通过JDOM来解析,需要借助第三方的组件.jdom.jar,网上有1.0的版本下载