利用Java解析xml文件教程

用javaDOM解析xml文档：

package demo;

import java.io.*;

import java.util.*;

import org.w3c.dom.*;

import javax.xml.parsers.*;

public class DemoXml{

public static void main(String[] args){

long lasting =System.currentTimeMillis();

try{

File f = new File("shiyan.txt.xml");//文档目录

DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();

DocumentBuilder builder=factory.newDocumentBuilder();

Document doc = builder.parse(f);

NodeList nl = doc.getElementsByTagName("Event");

for (int i=0;i<nl.getLength();i++){

try { //利用 try catch 防止出现错误

//下面拿取 Event下的每一个节点的值 System.out.print(doc.getElementsByTagName("Participant")

.item(i).getFirstChild().getNodeValue());

System.out.println(doc.getElementsByTagName("Time").item(i)

.getFirstChild().getNodeValue());

System.out.println(doc.getElementsByTagName("Location")

.item(i).getFirstChild().getNodeValue());

System.out.println(doc.getElementsByTagName("Denoter")

.item(i).getFirstChild().getNodeValue());

System.out.println(doc.getElementsByTagName("Time").item(i)

.getFirstChild().getNodeValue());

System.out.println(doc.getElementsByTagName("Object")

.item(i).getFirstChild().getNodeValue());

} catch (Exception e) {

// System.out.println("");

}

}catch(Exception e){

e.printStackTrace();

}

XML:

<?xml version="1.0" encoding="GB2312" ?>

<Body>

<Title>成都网友称震感强烈女同事当即哭泣</Title>

</Sentence>

</Paragraph>

<Event eid="e2"><Time type="absTime" tid="t2">15时50分</Time>，新民网<Participant sid="s1">记者</Participant>网上<Denoter type="action" did="d2">连线</Denoter>成都网友<Participant oid="o2">姚先生</Participant></Event>。

</Sentence>

<Event eid="e3"><Participant sid="s3,s4,s6,s7,s8,s9,s10">姚先生</Participant><Time type="relTime" tid="t3">当时</Time>正在<Location lid="l3">成都市武侯区的办公室</Location><Denoter type="action" did="d3">打电话</Denoter>，</Event>

<Event eid="e5"><Object oid="o5">电脑显示器</Object><Denoter type="action" did="d5">晃</Denoter>得很厉害</Event>，

<Event eid="e6">便<Denoter type="action" did="d6">丢下</Denoter><Object oid="o6">电话</Object></Event>、

<Event eid="e9">手里还<Denoter type="action" did="d9">拿</Denoter>着<Object oid="o9">无绳电话子机</Object>，</Event>

<Event type="thoughtevent" eid="e10">准备给远在江苏的<Participant type="recipient" oid="o10">家人</Participant><Denoter type="action" did="d10">打电话</Denoter>。</Event>

</Sentence>

</Paragraph>

<Event eid="e12">坐在他旁边的<Participant type="agent" sid="s12,s13">女同事</Participant>立刻<Denoter type="perception" did="d12">感觉</Denoter>是在地震，</Event>

</Sentence>

<Event eid="e15">成都市很多钢结构的<Object oid="o15">房屋</Object>都有明显<Denoter type="emergency" did="d15">震感</Denoter>，</Event>

<Event eid="e18"><Object oid="o18">手机信号</Object>已经<Denoter type="stateChange" did="d18">中断</Denoter></Event>，据称基站坏了。

</Sentence>

<Event eid="e19">疏散出来的人群中，<Participant sid="s19">大家</Participant>都在<Denoter type="action" did="d19">谈论</Denoter>唐山大地震。</Event>

</Sentence>

</Paragraph>

<Event eid="e20" type="thoughtevent"><Participant sid="s20">姚先生</Participant>向<Participant oid="o20">新民网记者</Participant><Denoter type="perception" did="d20">称</Denoter></Event>，

<Event eid="e21" type="thoughtevent">据<Participant sid="s21">一些成都市民</Participant><Denoter type="perception" did="d21">说</Denoter>，</Event>

<Event eid="e22">成都的<Object oid="o22">伊藤洋华堂武侯店</Object><Denoter type="stateChange" did="d22">倒塌</Denoter>。</Event>

</Sentence>

</Paragraph>

</Content>

</Body>

利用Java解析xml文件教程

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