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<?xml version="1.0" encoding="UTF-8"?>
<catalog>
<!--An XML Catalog-->
<?target instruction?>
  <journal title="XML Zone"
                  publisher="IBM developerWorks">
<article level="Intermediate" date="December-2001">
<title>Java configuration with XML Schema</title>
<author>
     <firstname>Marcello</firstname>
     <lastname>Vitaletti</lastname>
</author>
  </article>
  </journal>
</catalog>
È»ºóʹÓÃͬһ¸ö½âÎöÆ÷ÐÞ¸Ä catalog.xml£¬Çåµ¥ 2 ÊÇÐ޸ĺóµÄ XML Îĵµ£¬catalog-modified.xml¡£
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<?xml version="1.0" encoding="UTF-8"?>
<catalog>
<!--An XML catalog-->
<?target instruction?>
  <journal title="XML Zone"
                   publisher="IBM developerWorks">
<article level="Introductory" date="October-2002">
<title>Create flexible and extensible XML schemas</title>
<author>
     <firstname>Ayesha</firstname>
     <lastname>Malik</lastname>
</author>
  </article>
  </journal>
</catalog>
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package com.test.dom4j;
import java.io.*;
import java.util.*;
import org.dom4j.*;
import org.dom4j.io.*;
public class MyXMLReader {
public static void main(String arge[]) {
try {
File f = new File("src/testxml.xml");
SAXReader reader = new SAXReader();
Document doc = reader.rea ......

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<bookstore>
  <book genre="love" ISBN="1234123">
    <title>who am i </title>
    <author>who</author>
   ......

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<bookstore>
  <book ISBN="1234123">
    <title>who am i </title>
    <author>who</author>
    <price> ......
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