jdom 解析XML

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import java.io.FileOutputStream;

  import java.util.List;

  import org.jdom.Document;

  import org.jdom.Element;

  import org.jdom.input.SAXBuilder;

  import org.jdom.output.XMLOutputter;

  public class TestJDomSax {

  /*<?xml version="1.0" encoding="UTF-8"?>

  <books>

  <book email="zhang@1.net">

  <name>li</name>

  <price>63.4</price>

  </book>

  </books>*/

  public static void main(String args) {

  // TODO Auto-generated method stub

  String filePath="lib.xml";

  try {

  SAXBuilder sax=new SAXBuilder(); // 创建一个sa

  Document doc=sax.build(filePath);  //得到Document对应的XML

  Element el=doc.getRootElement(); //得到根节点,对应books

  List<Element> list=el.getChildren("book");  //得到book节点集

  for(Element book:list){

  //取属性,并修改

  String email=book.getAttributeValue("email");//获取属性内容

  System.out.println(email);

  book.setAttribute("email","yuanjob@163.com");

  //取节点,并修改

  String name=book.getChildTextTrim("name"); //获取节点内容

  System.out.println(name);

  Element ele=book.getChild("name");

  ele.setText("yuan");

  //取节点,并修改

  String price=book.getChildTextTrim("price"); //获取节点内容

  System.out.println(price);

  Element eleprice=book.getChild("price");

  eleprice.setText("999");

  }

  XMLOutputter out=new XMLOutputter();

  out.output(doc,new FileOutputStream(filePath));

  } catch (Exception e) {

  e.printStackTrace();

  }

  }

  }

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