teststringxml.java

一个用Java调用DOM4J解析XML的例子 比较全面 对初学者很有帮助 高手就不浪费你们的点数了 呵呵

package com.ly;

import java.util.List;

import org.dom4j.Attribute;
import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.io.SAXReader;

public class TestStringXml
{

	/**
	 * @param args
	 */
	public static void main(String[] args)
	{
		SAXReader reader = new SAXReader();
		try
		{
			// Document doc=reader.read("student.xml");
			// String s=doc.asXML();
			// System.out.println(s.length());
			// System.out.println(s);
			String xmlStr = "<persons><person><name id='1'>张飞</name><age>1000</age></person><person><name  id='2'>李逵</name><age>800</age></person><person><name  id='3'>毛泽东</name><age>110</age></person></persons>";
			Document doc = DocumentHelper.parseText(xmlStr);
			// 得到根元素
			Element root = doc.getRootElement();
			// 得到所有的子元素 xpath
			// 根据xpath来查找元素
			List ls = root.selectNodes("/persons/person");

			for(int i = 0; i < ls.size(); i++)
			{
				Element el = (Element) ls.get(i);
				Element name = el.element("name");
				Element age = el.element("age");
				Attribute at = name.attribute("id");
				System.out.println(name.getName() + "\t" + at.getValue() + "\t" + name.getText());
			}
			// Node nameEl = docnew.selectSingleNode("/person/name");
			// System.out.println(nameEl.getText());
		} catch (Exception e)
		{
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

	}

}