DOM解析器

package com.DOM;

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

public class DomTest {

public static void main(String[] args) {
    // TODO Auto-generated method stub
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();

    try {
        DocumentBuilder builder = factory.newDocumentBuilder();//创建DOM的解析工厂
        Document document = builder.parse("d:\\11.txt");//使用解析器解析文档生成倒树的Document
        NodeList list = document.getElementsByTagName("Weather");//得到文档中的所有Weather标签
        Node node = list.item(0);//得到第一个Weather 
        Node child = node.getFirstChild();//得到weather的第一个子标签city
        Node next = child.getNextSibling();//得到city的下一个标签
        while (next != null) {//判断有没有走到最后一个标签
            if (next.getNodeType() == node.ELEMENT_NODE) {//判断节点类型是ELEMENT_NODE
                Node content = next.getFirstChild();//得到该节点的第一个子节点不能为空

            if (content != null) {
                System.out.println(next.getFirstChild().getNodeValue().trim());
            }
        }
            next=next.getNextSibling();//得到下一个标签

    } 



    } catch (ParserConfigurationException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (SAXException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }

}

}