Xml解析器（java用的）

Dom解析器

package com.dongdong.gogo;import java.io.File;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.NamedNodeMap;import org.w3c.dom.Node;import org.w3c.dom.NodeList;import org.xml.sax.SAXException;public class XMlclass {    public static void main(String[] args) {        File f1 = new File("E:\\tianqi.txt");        DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();// 定义一个dom工厂        try {            DocumentBuilder db = dbf.newDocumentBuilder();// 顶一个解析器            Document doc = db.parse(f1);// 建立一个树            NodeList weathers = doc.getElementsByTagName("Weather");// 找树中的一节点            for (int i = 0; i < weathers.getLength(); i++) {                Node weather = weathers.item(i);// 树中的子节点             NamedNodeMap map = weather.getAttributes();//获取<weather name="天气">里面的name的属性             if(map!=null)             System.out.println(map.getNamedItem("name"));                for (Node node = weather.getFirstChild(); node != null; node = node.getNextSibling()) {//输出便利weather的子节点的内容                    if (node.getFirstChild() != null) {//考虑这个能否遍历标签里面的标签                        System.out.println(node.getNodeName());//getNodeName给这个标签的名字                        System.out.println(node.getFirstChild().getNodeValue());//getNodeValue标签子标签的内容                        System.out.println();                    }                }            }        } 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();        }    }}

SAX解析器

package com.dong.xml;import java.io.File;import java.io.IOException;import javax.xml.parsers.ParserConfigurationException;import javax.xml.parsers.SAXParser;import javax.xml.parsers.SAXParserFactory;import org.xml.sax.SAXException;public class TestSax {public static void main(String[] args) {    File f1=new File("E:\\tianqi.txt");    SAXParserFactory sax=SAXParserFactory.newInstance();//先定义一个解析工厂     try {        SAXParser parse=sax.newSAXParser();//在定义一个解析器        MyHandle handle=new MyHandle();//解析树        parse.parse(f1, handle);    } 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();    }}}package com.dong.xml;import org.xml.sax.Attributes;import org.xml.sax.SAXException;import org.xml.sax.helpers.DefaultHandler;public class MyHandle extends DefaultHandler{    @Override    public void characters(char[] arg0, int arg1, int arg2) throws SAXException {        // TODO Auto-generated method stub        super.characters(arg0, arg1, arg2);        System.out.println("标签内容"+new String(arg0,arg1,arg2));    }    @Override    public void endElement(String arg0, String arg1, String arg2) throws SAXException {        // TODO Auto-generated method stub        super.endElement(arg0, arg1, arg2);        System.out.println("结尾标签"+arg2);    }    @Override    public void endDocument() throws SAXException {        // TODO Auto-generated method stub        super.endDocument();    }    @Override    public void startDocument() throws SAXException {        // TODO Auto-generated method stub        super.startDocument();    }    @Override    public void startElement(String arg0, String arg1, String arg2, Attributes arg3) throws SAXException {        // TODO Auto-generated method stub        super.startElement(arg0, arg1, arg2, arg3);        System.out.println("开始标签"+arg2);        if(arg3!=null){            System.out.println(arg3.getValue("name"));        }    }}

Xml文件

<Profiles><Weather name="天气"><city><center>北京</center></city><status1>多云</status1><status2>雷阵雨</status2><figure1>duoyun</figure1><figure2>leizhenyu</figure2><direction1>无持续风向</direction1><direction2>无持续风向</direction2><power1>≤3</power1><power2>≤3</power2><temperature1>32</temperature1><temperature2>21</temperature2><ssd>8</ssd><tgd1>28</tgd1><tgd2>28</tgd2><zwx>1</zwx><ktk>3</ktk><pollution>3</pollution><xcz>5</xcz><zho></zho><diy></diy><fas></fas><chy>1</chy><zho_shuoming>暂无</zho_shuoming><diy_shuoming>暂无</diy_shuoming><fas_shuoming>暂无</fas_shuoming><chy_shuoming>短袖衫、短裙、短裤、薄型T恤衫、敞领短袖棉衫</chy_shuoming><pollution_l>轻度</pollution_l><zwx_l>最弱</zwx_l><ssd_l>较热</ssd_l><fas_l>暂无</fas_l><zho_l>暂无</zho_l><chy_l>薄短袖类</chy_l><ktk_l>较适宜开启(制冷)</ktk_l><xcz_l>不适宜</xcz_l><diy_l>暂无</diy_l><pollution_s>对空气污染物扩散无明显影响</pollution_s><zwx_s>紫外线最弱</zwx_s><ssd_s>户外活动不适宜在中午前后展开。</ssd_s><ktk_s>比较适宜开启空调</ktk_s><xcz_s>洗车后当日有降水、大风或沙尘天气，不适宜洗车</xcz_s><gm>1</gm><gm_l>低发期</gm_l><gm_s>环境温度较高，要提防长时间在空调环境中引发的空调病；</gm_s><yd>5</yd><yd_l>不适宜</yd_l><yd_s>出现下雨天气时会伴有雷声，不适宜户外运动；</yd_s><savedate_weather>2015-07-23</savedate_weather><savedate_life>2015-07-23</savedate_life><savedate_zhishu>2015-07-23</savedate_zhishu><udatetime>2015-07-23 08:10:12</udatetime></Weather></Profiles>