dom4j读取XML

dom4j的DOM结构解析

读取下列xml中所有的书名

<?xml version="1.0" encoding="utf-8" ?>
    <bookStore>
    <book id="1">
        <name>呼啸山庄</name>
        <author>0001</author>
    </book>
    <book id="2">
        <name>呐喊</name>
        <author>周树人</author>
    </book>
    <book id="3">
        <name>彷徨</name>
        <author>周树人</author>
    </book>
    <book id="4">
        <name>小王子</name>
        <author>0005</author>
    </book>
    <book id="5">
        <name>乔家大院</name>
        <author>朱秀海</author>
    </book>
</bookStore>

import org.dom4j.Element;
import org.dom4j.io.ElementModifier;
import org.dom4j.io.SAXReader;
import java.io.File;
import java.util.Iterator;

import org.dom4j.Document;
/**
 * Created by root on 16-3-21.
 */
public class dom4j {
    public static void main(String[] args) throws Exception{
        method_1();
    }
    private static void method_1() throws Exception{//抛出异常 减少try--catch的使用
        SAXReader reader=new SAXReader(); //建立SAXReader对象
        Document document=reader.read(new File("hello.xml"));  //建立document对象
        Element rootElement =document.getRootElement(); //根element对象

           Iterator it= rootElement.elementIterator(); //从rootelement获得枚举器
        while (it.hasNext()){
           Element el=(Element)  it.next();//枚举方法
           System.out.println( el.element("name").getText());  //获得<book></book>中的<name></name>标签内的内容 并打印
        }
//        System.out.println("book name--->  "+bookName);
    }
}