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public int createXMLFile(String filename) {
  int returnValue = 0;
  Document document = DocumentHelper.createDocument();    //Éú³ÉDocument£¬ÓÃÓÚ¹ÜÀíXMLÎĵµ
  
  Element booksElement = document.addElement("books");    //Ìí¼Ó¸ù½Úµã
  
  booksElement.addComment("This is a test for dom4j, holen, 2004.9.11");   //Ìí¼Ó×¢ÊÍ
  
  Element bookElement = booksElement.addElement("book");      //ÔÚ¸ú½ÚµãbooksÏÂÌí¼ÓÒ»¸öbook×Ó½Úµã
  
  bookElement.addAttribute("show", "yes");    //ΪbookElementÌí¼ÓÊôÐÔ£¬²¢Öƶ¨ÊôÐÔµÄÖµ
  
  Element titleElement = bookElement.addElement("title");   //ΪbookElement½ÚµãÌí¼ÓÒ»¸ötitle×Ó½Úµã
  
  titleElement.setText("Dom4j Tutorials");      //Ϊtitle×Ó½ÚµãÉèÖÃÎı¾½ÚµãÄÚÈÝ
  
  try {
   XMLWriter writer = new XMLWriter(new FileWriter(new File(filename)));
   
   writer.write(document);  //ÆÕͨ¸ñʽ£¬±È½Ï²»ÃÀ¹Û
      
      OutputFormat format =null;
       
      
//      format=OutputFormat.createPrettyPrint();       //ÃÀ»¯¸ñʽ,¶ÁÈ¡ºóÃÀ»¯ÏÔʾ      
//   writer = new XMLWriter( System.out, format );   
//   writer.write( document ); 
   
//   format = OutputFormat.createCompactFormat();  //Ëõ¼õ¸ñʽ£¬¶ÁÈ¡ºóËõ¼õÏÔʾ
//   writer = new XMLWriter( System.out, format ); 
//   writer.write( document ); 
   
   
   writer.close();
   
   return
    
     
	
	
    
    
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data.xml 
<?xml version="1.0" encoding="UTF-8"?>  
<Items>  
    <Item ASIN="0446355453"    
        Author="Sidney Sheldon"    
        Manufacturer="Warner Books"    
        ProductGroup="Book"    
        Title="Master of the Game"/>  
           
    <Item ASIN=" ......
	
    
        
    
    declare @xml xml
set @xml = '<root/>'
select @xml
declare @value varchar(10)
set @value = 'val1'
set @xml.modify('insert <item value="{sql:variable("@value")}" /> into (/root)[1]')
select @xml
set @value = 'val2'
set @xml.modify('replace value of (/root/item/@value)[1] with "val2 ......
	
    
        
    
    <?
XML DOM¶ÁÈ¡½ÚµãÐÅÏ¢Óöµ½ÎÊÌâ×ܽ᣺  
 
1:NodeList: ʹÓýڵãµÄchildNodesÊôÐÔ»òÕßdocument¶ÔÏóµÄgetElementsByTagName()·½·¨£¬¾Í»á·µ»ØÒ»¸ö°üº¬½ÚµãÁбíµÄNodeList
 
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·  childNodes
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