Java reads with DOM, updates XML file

package com.sun.xml;import java.io.file;import java.io.filenotfoundexception;import  java.io.fileoutputstream;import java.io.ioexception;import java.io.outputstreamwriter;import  java.io.unsupportedencodingexception;import javax.xml.parsers.documentbuilder;import  Javax.xml.parsers.documentbuilderfactory;import javax.xml.parsers.parserconfigurationexception;import  javax.xml.transform.OutputKeys;import javax.xml.transform.Transformer;import  javax.xml.transform.transformerexception;import javax.xml.transform.transformerfactory;import  javax.xml.transform.dom.domsource;import javax.xml.transform.stream.streamresult;import  org.w3c.dom.document;import org.w3c.dom.element;import org.w3c.dom.node;import  org.w3c.dom.nodelist;import org.w3c.dom.text;import org.xml.sax.saxexception;public class  Readxml {    public static void main (STRING[]&NBSp;args)  throws ParserConfigurationException, TransformerException {         document document=read ("C:\\users\\administrator\\desktop\\bookstore1.xml") ;         string path= "c:\\users\\administrator\\desktop\\ Bookstore1.xml ";         addnode (document, path, " Zhang San ");     }    public static document  read (String path)  throws ParserConfigurationException, TransformerException{         document document=null;        documentbuilderfactory  bf=documentbuilderfactory.newinstance ();         documentbuilder  builder=bf.newdocumentbuilder ();        file file=new  File (path);         try {             document= builder.parse (file);             //gets the tag with the title, and returns the collection              Nodelist nodelist=document.getelementsbytagname ("title");                   for (Int i=0;i<nodelist.getlength (); i++) {                 node node =nodelist.item (i);                 string string=node.gettextcontent ();                 system.out.println (String);                  updatexmlnode (document, node,  "Sssss",  path);             }                     } catch  (saxexception | ioexception  e)  {            // TODO  auto-generated catch block             E.printstacktrace ();        }         return document;    }    public static void  updatexmlnode (Document document,node node,string text,string path)  throws  transformerexception, unsupportedencodingexception, filenotfoundexception{         nodE.settextcontent (text);         writetofile (Document, path);     }        public static void addnode ( Document document,string path,string text) {        text  text2=document.createtextnode (text);         text text3= document.createTextNode (text);         text text4= document.createTextNode (text);                 element element=document.createelement ("book");         element element2=document.createelement ("title");         element element3=document.createelement ("author");             element eleMent4=document.createelement ("Price");                 element2.appendchild (TEXT2);         Element3.appendchild (TEXT3);         element4.appendchild (TEXT4);         element.appendchild (Element2);         element.appendchild (ELEMENT3);         element.appendchild ( ELEMENT4);        nodelist nodelist=  document.getElementsByTagName ("bookstore");         node  Node=nodelist.item (0);         node.appendchild (Element);         try {             writetofile (Document, path);         } catch  (unsupportedencodingexception |  filenotfoundexception                 | transformerexception e)  {             // TODO Auto-generated catch block             e.printstacktrace ();         }     }        public static void  WriteToFile (Document document,string path)  throws TransformerException,  unsupportedencodingexception, filenotfoundexception{         Transformerfactory transformerfactory=transformerfactory.newinstance ();         transformer transformer=transformerfaCtory.newtransformer ();        /*          *  format output XML document, line wrap and indent */           Transformer.setoutputproperty (outputkeys.indent,  "yes");           transformer.setoutputproperty ("{http://xml.apache.org/xslt}indent-amount",  "4");         //transformer.transform (New domsource (document), new  Streamresult (path));        /*          *  set the output stream encoding to Utf-8*/        outputstreamwriter  owriter=new outputstreamwriter (New fileoutputstream (new file (path)), "UTF-8");         document.setxmlstandalone (True);         transformer.transform (NEW&NBsp;domsource (document), New streamresult (Owriter));     }} 

The XML file is as follows:

<?xml version= "1.0" encoding= "Utf-8"?> <bookstore> <!--record book information--<book> <title> data Structure & lt;/title> <author> Min </author> <price>30.00</price> </book></bookstore>

This article is from the "matengbing" blog, make sure to keep this source http://matengbing.blog.51cto.com/11395502/1876353

Java reads with DOM, updates XML file