一个用Dom4j解析xml的例子

一、测试用的em.xml
<?xml version="1.0" encoding="GB2312"?>
 <EW cmd="login" mod="Login" version="6.0">
   <Source uns="" type="user"/>
   <Username>zhangzhiyun@hp</Username>
   <Password>111111</Password>
  <Version>6.01.06.00</Version>
</EW>
二、Dom4jTest.java
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import org.apache.log4j.Logger;
import org.dom4j.Attribute;
import org.dom4j.DocumentException;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
/**
* @author julysea
*
* 一个用Dom4j解析xml的例子
*
*/
public class Dom4jTest {
private static final Logger logger = Logger.getLogger(Dom4jTest.class);
public static void main(String[] args) throws IOException,
DocumentException {
BufferedReader reader=new BufferedReader(new FileReader("ew.xml"));
String tempStr;
String ewXml="";
while((tempStr=reader.readLine())!=null) {
ewXml=ewXml+tempStr;
logger.debug(tempStr);
}
Element root = null;
root = DocumentHelper.parseText(ewXml).getRootElement();
Attribute rootCmd=root.attribute("cmd");
Attribute rootVersion=root.attribute("version");
logger.debug("rootNmae = "+root.getName());
logger.debug("EW'cmd = "+rootCmd.getValue());
logger.debug("EW'version = "+rootVersion.getValue());
Element usrName=root.element("Username");
logger.debug("EW.Username value = "+usrName.getTextTrim());
Element source=root.element("Source");
Attribute sourceUns=source.attribute("uns");
logger.debug("EW.Source'uns＝"+sourceUns.getValue());
Attribute sourceType=source.attribute("type");