java 解析 xml 字符串

import java.io.IOException;
import java.io.StringReader;
import java.util.List;

import org.jdom.Document;
import org.jdom.Element;
import org.jdom.JDOMException;
import org.jdom.Namespace;
import org.jdom.input.SAXBuilder;
import org.xml.sax.InputSource;

public class DuXMLDoc {
    public List xmlElements(String xmlDoc) {
        //建立一個新的字符串
        StringReader read = new StringReader(xmlDoc);
        //建立新的輸入源SAX 解析器將使用 InputSource 對象來肯定如何讀取 XML 輸入
        InputSource source = new InputSource(read);
        //建立一個新的SAXBuilder
        SAXBuilder sb = new SAXBuilder();
        try {
            //經過輸入源構造一個Document
            Document doc = sb.build(source);
            //取的根元素
            Element root = doc.getRootElement();
            System.out.println(root.getName());//輸出根元素的名稱（測試）
            //獲得根元素全部子元素的集合
            List jiedian = root.getChildren();
            //得到XML中的命名空間（XML中未定義可不寫）
            Namespace ns = root.getNamespace();
            Element et = null;
            for(int i=0;i<jiedian.size();i++){
                et = (Element) jiedian.get(i);//循環依次獲得子元素
               
                System.out.println(et.getChild("users_id",ns).getText());
                System.out.println(et.getChild("users_address",ns).getText());
            }
           
            et = (Element) jiedian.get(0);
            List zjiedian = et.getChildren();
            for(int j=0;j<zjiedian.size();j++){
                Element xet = (Element) zjiedian.get(j);
                System.out.println(xet.getName());
            }
        } catch (JDOMException e) {
            // TODO 自動生成 catch 塊
            e.printStackTrace();
        } catch (IOException e) {
            // TODO 自動生成 catch 塊
            e.printStackTrace();
        }
        return null;
    }
    public static void main(String[] args){
        DuXMLDoc doc = new DuXMLDoc();
        String xml = "<?xml version=\"1.0\" encoding=\"gb2312\"?>"+
        "<Result xmlns=\"http://www.fiorano.com/fesb/activity/DBQueryOnInput2/Out\">"+
           "<row resultcount=\"1\">"+
              "<users_id>1001     </users_id>"+
              "<users_name>wangwei   </users_name>"+
              "<users_group>80        </users_group>"+
              "<users_address>1001號   </users_address>"+
           "</row>"+
           "<row resultcount=\"1\">"+
              "<users_id>1002     </users_id>"+
              "<users_name>wangwei   </users_name>"+
              "<users_group>80        </users_group>"+
              "<users_address>1002號   </users_address>"+
           "</row>"+
        "</Result>";
        doc.xmlElements(xml);
    }
}