java和XML的小问题，在线等！

XML code:

<!--名字为：gobal-configure.xml-->
<?xml version="1.0" encoding="UTF-8"?>
<sys-configure>
<jdbc-info>
<driver-class-name>com.mysql.jdbc.Driver</driver-class-name>
<url>jdbc:mysql://127.0.0.1:3306/person</url>
<user-name>root</user-name>
<password>xxx</password>
</jdbc-info>
<beans>
<bean id="person" class="servlet.DOMsg"></bean>
</beans>
</sys-configure>


Java code:

package com;

import java.io.IOException;

import org.jdom.Document;
import org.jdom.Element;
import org.jdom.JDOMException;
import org.jdom.input.SAXBuilder;
import org.jdom.xpath.XPath;

/**
* 读取配置文件
*
* @author Administrator
*
*/
public class GlobalConfigure {

public String CONFIGURE_FILE_NAME = "gobal-configure.xml";
private Element rootEmt;

private GlobalConfigure() {

System.out.println("@1");
try {
SAXBuilder sb = new SAXBuilder();
Document doc = sb.build(Thread.currentThread()
.getContextClassLoader().getRes