如何将xml的String字符串转化标准格式的String字符串

    最近，媳妇要做一个String串的格式化处理，一开始采用dom4j转化为Document对象的形式，结果不起作用，后来还是采用dom4j的方式，最终输出了一个规则的XML的String字符串，下面看看如何实现的。

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.StringWriter;

import org.dom4j.Document;
import org.dom4j.DocumentException;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.SAXReader;
import org.dom4j.io.XMLWriter;

public class ToolUtrils {

   /**
    * 字符串转化为XML串
    *    
    * @param str
    * @return
    * @throws Exception
    */
   public static String strChangeToXML(String str) {
    SAXReader saxReader = new SAXReader();
    Document document = null;
     try {
      document = saxReader.read( new ByteArrayInputStream(str.getBytes()));
    } catch (DocumentException e) {
      e.printStackTrace();
    }
    StringWriter writer = new StringWriter();
    OutputFormat format = OutputFormat.createPrettyPrint();
    format.setEncoding( "UFT-8");
    XMLWriter xmlwriter = new XMLWriter(writer, format);
     try {
      xmlwriter.write(document);
    } catch (IOException e) {
      e.printStackTrace();
    }
     return writer.toString();
  }

   /**
    * 测试程序文件
    *    
    * @param args
    */
   public static void main(String[] args) {
    String str = "<?xml version='1.0' encoding='UTF-8'?><GESInfo><City id='苏州' name='苏州' code='1001'><Area id='市区' name='市区' code='10011001' LocationSetup='0'><Place id='观前' name='观前' code='100110011001' LocationSetup='1'><Monitor id='摄像头1' name='摄像头1' code='11000000000000000011200034800000' gesid='abcde1' channelid='1' VideoScan='1' Capture='1' ManualREC='1' RecPlay ='1' MonControl='1' />        <Monitor id='摄像头2' name='摄像头2' code='11000000000000000011200034800000' gesid='abcde2' channelid='1' VideoScan='1' Capture='1' ManualREC='1' RecPlay ='1' MonControl='1' /></Place><Place id='石路' name='石路' code='100110011002' LocationSetup='2'><Monitor id='摄像头3' name='摄像头3' code='11000000000000000011200034800000' gesid='abcde3' channelid='1' VideoScan='1' Capture='1' ManualREC='1' RecPlay ='1' MonControl='1' />        <Monitor id='摄像头4' name='摄像头4' code='11000000000000000011200034800000' gesid='abcde4' channelid='1' VideoScan='1' Capture='1' ManualREC='1' RecPlay ='1' MonControl='1' /> </Place></Area><Area id='园区' name='园区' code='10011002' LocationSetup='0'><Place id='科技园' name='科技园' code='100110011003' LocationSetup='1'><Monitor id='摄像头5' name='摄像头5' code='11000000000000000011200034800000' gesid='abcde5' channelid='1' VideoScan='1' Capture='1' ManualREC='1' RecPlay ='1' MonControl='1' />        <Monitor id='摄像头6' name='摄像头6' code='11000000000000000011200034800000' gesid='abcde6' channelid='1' VideoScan='1' Capture='1' ManualREC='1' RecPlay ='1' MonControl='1' /> </Place><Place id='金鸡湖' name='金鸡湖' code='100110011004' LocationSetup='2'><Monitor id='摄像头7' name='摄像头7' code='11000000000000000011200034800000' gesid='abcde7' channelid='1' VideoScan='1' Capture='1' ManualREC='1' RecPlay ='1' MonControl='1' />        <Monitor id='摄像头8' name='摄像头8' code='11000000000000000011200034800000' gesid='abcde8' channelid='1' VideoScan='1' Capture='1' ManualREC='1' RecPlay ='1' MonControl='1' /> </Place></Area></City></GESInfo>";
    System.out.println(strChangeToXML(str));
  }
}

输出结果：

<? xml version ="1.0" encoding ="UFT-8" ?>

< GESInfo >
     < City id ="苏州" name ="苏州" code ="1001" >
         < Area id ="市区" name ="市区" code ="10011001" LocationSetup ="0" >
             < Place id ="观前" name ="观前" code ="100110011001" LocationSetup ="1" >
                 < Monitor id ="摄像头1" name ="摄像头1" code ="11000000000000000011200034800000" gesid ="abcde1" channelid ="1" VideoScan ="1" Capture ="1" ManualREC ="1" RecPlay ="1" MonControl ="1" />    
                 < Monitor id ="摄像头2" name ="摄像头2" code ="11000000000000000011200034800000" gesid ="abcde2" channelid ="1" VideoScan ="1" Capture ="1" ManualREC ="1" RecPlay ="1" MonControl ="1" />
             </ Place >
             < Place id ="石路" name ="石路" code ="100110011002" LocationSetup ="2" >
                 < Monitor id ="摄像头3" name ="摄像头3" code ="11000000000000000011200034800000" gesid ="abcde3" channelid ="1" VideoScan ="1" Capture ="1" ManualREC ="1" RecPlay ="1" MonControl ="1" />    
                 < Monitor id ="摄像头4" name ="摄像头4" code ="11000000000000000011200034800000" gesid ="abcde4" channelid ="1" VideoScan ="1" Capture ="1" ManualREC ="1" RecPlay ="1" MonControl ="1" />    
             </ Place >
         </ Area >
         < Area id ="园区" name ="园区" code ="10011002" LocationSetup ="0" >
             < Place id ="科技园" name ="科技园" code ="100110011003" LocationSetup ="1" >
                 < Monitor id ="摄像头5" name ="摄像头5" code ="11000000000000000011200034800000" gesid ="abcde5" channelid ="1" VideoScan ="1" Capture ="1" ManualREC ="1" RecPlay ="1" MonControl ="1" />    
                 < Monitor id ="摄像头6" name ="摄像头6" code ="11000000000000000011200034800000" gesid ="abcde6" channelid ="1" VideoScan ="1" Capture ="1" ManualREC ="1" RecPlay ="1" MonControl ="1" />    
             </ Place >
             < Place id ="金鸡湖" name ="金鸡湖" code ="100110011004" LocationSetup ="2" >
                 < Monitor id ="摄像头7" name ="摄像头7" code ="11000000000000000011200034800000" gesid ="abcde7" channelid ="1" VideoScan ="1" Capture ="1" ManualREC ="1" RecPlay ="1" MonControl ="1" />    
                 < Monitor id ="摄像头8" name ="摄像头8" code ="11000000000000000011200034800000" gesid ="abcde8" channelid ="1" VideoScan ="1" Capture ="1" ManualREC ="1" RecPlay ="1" MonControl ="1" />    
             </ Place >
         </ Area >
     </ City >
</ GESInfo >