Java读取xml文件的方法.docx

Java读取xml文件的方法Java读取xml文件的方法xml文件：Xml代码A1234XX省XX市B1234XX省XX市二七区第一种DOM实现方法：Java代码importjava.io.File;importjavax.xml.parsers.DocumentBuilder;importjavax.xml.parsers.DocumentBuilderFactory;importorg.w3c.dom.Document;importorg.w3c.dom.NodeList;publicclassMyXMLReader2DOM{publicstaticvoidmain(Stringarge[]){longlasting=System.currentTimeMillis();try{Filef=newFile("data_10k.xml");DocumentBuilderFactoryfactory=DocumentBuilderFactory.newInstance();DocumentBuilderbuilder=factory.newDocumentBuilder();Documentdoc=builder.parse(f);NodeListnl=doc.getElementsByTagName("VALUE");for(inti=0;i<nl.getLength();i++){System.out.print("车牌号码:"+doc.getElementsByTagName("NO").item(i).getFirstChild().getNodeValue());System.out.println("车主地址:"+doc.getElementsByTagName("ADDR").item(i).getFirstChild().getNodeValue());System.out.println("运行时间："+(System.currentTimeMillis()-lasting)+"毫秒");}}}catch(Exceptione){e.printStackTrace();}}}第二种，DOM4J实现方法：Java代码importjava.io.*;importjava.util.*;importorg.dom4j.*;importorg.dom4j.io.*;publicclassMyXMLReader2DOM4J{publicstaticvoidmain(Stringarge[]){longlasting=System.currentTimeMillis();try{Filef=newFile("data_10k.xml");SAXReaderreader=newSAXReader();Documentdoc=reader.read(f);Elementroot=doc.getRootElement();Elementfoo;for(Iteratori=root.elementIterator("VALUE");i.hasNext();){foo=(Element)i.next();System.out.print("车牌号码:"+foo.elementText("NO"));System.out.println("车主地址:"+foo.elementText("ADDR"));}System.out.println("运行时间："+(System.currentTimeMillis()-lasting)+"毫秒");}}catch(Exceptione){e.printStackTrace();}}}第三种JDOM实现方法：Java代码importjava.io.*;importjava.util.*;importorg.jdom.*;importorg.jdom.input.*;publicclassMyXMLReader2JDOM{publicstaticvoidmain(Stringarge[]){longlasting=System.currentTimeMillis();try{SAXBuilderbuilder=newSAXBuilder();Documentdoc=builder.build(newFile("data_10k.xml"));Elemen