解析

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XML解析

11.txt

<?xml version="1.0" encoding="UTF-8"?><!-- published at 2015-08-03 15:41:42 --><Profiles><Weather><city>    北京</city><city>上海</city><city>广州</city><city>深圳</city><city>天津</city><status1>阴</status1><status2>多云</status2><figure1>yin</figure1><figure2>duoyun</figure2><direction1>无持续风向</direction1><direction2>无持续风向</direction2><power1>≤3</power1><power2>≤3</power2><temperature1>30</temperature1><temperature2>23</temperature2><ssd>7</ssd><tgd1>27</tgd1><tgd2>27</tgd2><zwx>1</zwx><ktk>3</ktk><pollution>3</pollution><xcz>4</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>偏热</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>不太适宜</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>天气偏热，适当调整穿衣后，仍可达到比较舒适的程度。</ssd_s><ktk_s>比较适宜开启空调</ktk_s><xcz_s>洗车后未来1-2天内有降水、大风或沙尘天气，不太适宜洗车</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>天气炎热，不适宜户外运动；</yd_s><savedate_weather>2015-08-03</savedate_weather><savedate_life>2015-08-03</savedate_life><savedate_zhishu>2015-08-03</savedate_zhishu><udatetime>2015-08-03 08:21:36</udatetime></Weather></Profiles>

package com.lingzhuo;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.Node;import org.w3c.dom.NodeList;import org.xml.sax.SAXException;public class Test2 {    public static void main(String[] args) {        DocumentBuilderFactory factory= DocumentBuilderFactory.newInstance();//创建dom解析器的工厂             try {                DocumentBuilder builder=factory.newDocumentBuilder();//使用解析器工厂创建解析器                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");//得到文档中的所有的Weather 标签                Node node=list.item(0);                                //得到第一个Weather                Node child=node.getFirstChild();                       //得到Weather 标签的第一个子标签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());//String中有一个方法trim()去掉前后空格                          }                    }                    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();            }    }}

SAX解析

package com.lingzhuo;import org.xml.sax.Attributes;import org.xml.sax.SAXException;import org.xml.sax.helpers.DefaultHandler;public class MySAXHander extends DefaultHandler{    @Override    public void characters(char[] ch, int start, int length) throws SAXException {        super.characters(ch, start, length);        System.out.println(new String(ch,start,length));    }    @Override    public void endDocument() throws SAXException {        super.endDocument();    }    @Override    public void endElement(String uri, String localName, String qName) throws SAXException {        super.endElement(uri, localName, qName);        System.out.println(localName+qName);    }    @Override    public void startDocument() throws SAXException {        super.startDocument();    }    @Override    public void startElement(String uri, String localName, String qName, Attributes attributes) throws SAXException {        super.startElement(uri, localName, qName, attributes);        System.out.println(localName+qName);    }}package com.lingzhuo;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 Test3 {    public static void main(String[] args) {        SAXParserFactory factory=SAXParserFactory.newInstance();        try {            SAXParser parser=factory.newSAXParser();            MySAXHander hander=new MySAXHander();            parser.parse(new File("d://11.txt"), hander);        } catch (ParserConfigurationException | SAXException e) {            // TODO Auto-generated catch block            e.printStackTrace();        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }}

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