java解析xml格式的节点属性值

<ResponseContent>
    <Parameter>
      <Document>
        <RecordSet id="1">
          <Master name="purchase">
            <Record>
              <Field name="orderNumber" value="1P05-151200172"/>
              <Field name="status" value="Y"/>
              <Field name="plant" value="MFL01-1"/>
            </Record>
          </Master>
        </RecordSet>
      </Document>
    </Parameter>
  </ResponseContent>

package com.customcode.code;


import java.io.ByteArrayInputStream;
 
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

 
import org.w3c.dom.Document;
import org.w3c.dom.Element;

import org.w3c.dom.NodeList;




public class ERPGETPARAM {
	public static String  statusresult(String xml) throws Exception {
		DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
        DocumentBuilder db = factory.newDocumentBuilder();
        Document document = db.parse(new ByteArrayInputStream(xml.getBytes()));
         
        NodeList node = document.getElementsByTagName("Field");
        //for(int i=0;i<node.getLength();i++){
            Element element = (Element)node.item(1);
            // 获取属性学号
//            String name = element.getAttribute("name");
//            System.out.println("name：" + name);
            String value=null;
            try{
             value = element.getAttribute("value");
            }catch(NullPointerException e){
            	e.printStackTrace();
            }
            //System.out.println("value：" + value); 
           return value;
            //获取值
//            content = element.getElementsByTagName("value").item(0).getFirstChild().getNodeValue();
//            System.out.println("value：" + content);
             
            
        //}


	}
}