Java reads XML four ways __java

Java reads XML four ways

XML file:
XML code
<?xml version= "1.0" encoding= "GB2312"?>
<RESULT>
<VALUE>
<NO>A1234</NO>
<ADDR> Henan province Zhengzhou </ADDR>
</VALUE>
<VALUE>
<NO>B1234</NO>
<ADDR> Erqi, Zhengzhou city, Henan province </ADDR>
</VALUE>
</RESULT>
The first method of DOM implementation:
Java code
Import Java.io.File;
Import Javax.xml.parsers.DocumentBuilder;
Import Javax.xml.parsers.DocumentBuilderFactory;
Import org.w3c.dom.Document;
Import org.w3c.dom.NodeList;
public class Myxmlreader2dom {
public static void Main (String arge[]) {
Long lasting = System.currenttimemillis ();
try {
File F = new file ("Data_10k.xml");
Documentbuilderfactory factory = Documentbuilderfactory.newinstance ();
Documentbuilder builder = Factory.newdocumentbuilder ();
Document doc = Builder.parse (f);
NodeList nl = doc.getelementsbytagname ("VALUE");
for (int i = 0; i < nl.getlength (); i++) {
System.out.print ("License plate number:" + doc.getelementsbytagname ("NO"). Item (i). Getfirstchild (). Getnodevalue ());
System.out.println ("Owner address:" + doc.getelementsbytagname ("ADDR"). Item (i)-getfirstchild (). Getnodevalue ());
System.out.println ("Run Time:" + (System.currenttimemillis ()-lasting)
+ "millisecond");
}
}
catch (Exception e) {
E.printstacktrace ();
}
}
}
Second, the DOM4J implementation method:
Java code
Import java.io.*;
Import java.util.*;
Import org.dom4j.*;
Import org.dom4j.io.*;
public class Myxmlreader2dom4j {
public static void Main (String arge[]) {
Long lasting = System.currenttimemillis ();
try {
File F = new file ("Data_10k.xml");
Saxreader reader = new Saxreader ();
Document doc = Reader.read (f);
Element root = Doc.getrootelement ();
Element foo;
for (Iterator i = root.elementiterator ("VALUE"); I.hasnext ();) {
Foo = (Element) i.next ();
System.out.print ("License plate number:" + foo.elementtext ("NO"));
System.out.println ("Owner address:" + foo.elementtext ("ADDR"));
}
System.out.println ("Run Time:" + (System.currenttimemillis ()-lasting)
+ "millisecond");
}
catch (Exception e) {
E.printstacktrace ();
}
}
}

The third kind of jdom implementation method:
Java code
Import java.io.*;
Import java.util.*;
Import org.jdom.*;
Import org.jdom.input.*;
public class Myxmlreader2jdom {
public static void Main (String arge[]) {
Long lasting = System.currenttimemillis ();
try {
Saxbuilder builder = new Saxbuilder ();
Document doc = builder.build (new File ("Data_10k.xml"));
Element foo = doc.getrootelement ();
List Allchildren = Foo.getchildren ();
for (int i = 0; i < allchildren.size (); i++) {
System.out.print ("License plate Number:" + (Element) allchildren.get (i)). Getchild ("NO"). GetText ());
System.out.println ("Owner's Address:" + ((Element) allchildren.get (i)). Getchild ("ADDR"). GetText ());
}
System.out.println ("Run Time:" + (System.currenttimemillis ()-lasting)
+ "millisecond");
}
catch (Exception e) {
E.printstacktrace ();
}
}
}
The fourth kind of Sax implementation method:
Java code
Import Javax.xml.parsers.SAXParser;
Import Javax.xml.parsers.SAXParserFactory;
Import org.xml.sax.Attributes;
Import Org.xml.sax.InputSource;
Import org.xml.sax.SAXException;
Import Org.xml.sax.helpers.DefaultHandler;
public class Myxmlreader2sax extends DefaultHandler {
Java.util.Stack tags = new java.util.Stack ();
Public Myxmlreader2sax () {
Super ();
}
public static void Main (String args[]) {
Long lasting = System.currenttimemillis ();
try {
SAXParserFactory SF = Saxparserfactory.newinstance ();
SAXParser sp = Sf.newsaxparser ();
Myxmlreader2sax reader = new Myxmlreader2sax ();
Sp.parse (New InputSource ("Data_10k.xml"), reader);
catch (Exception e) {
E.printstacktrace ();
}
System.out.println ("Run Time:" + (System.currenttimemillis ()-lasting)
+ "millisecond");
}
public void characters (char ch[], int start, int length)
Throws Saxexception {
String tag = (string) tags.peek ();
if (Tag.equals ("NO")) {
System.out.print ("License plate number:" + New String (CH, start, length));
}
if (Tag.equals ("ADDR")) {
SYSTEM.OUT.PRINTLN ("Address:" + New String (CH, start, length));
}
}
public void Startelement (string uri, String localname, String qName,
Attributes attrs) {
Tags.push (QName);
}
}