java dom 解析 子节点属性解析

需要解析node的值，网上找了十几篇文章基本上没有完全符合的样例，基本上node都是在meter节点上的。于是自己参照写了一个样例
<?xml version="1.0" encoding="UTF-8"?>
<METERS>
<METER>
<AMMETERNO NODE="电表编码"></AMMETERNO>
</METER>
  <METER>
<METERNO NODE="电表编码"></METERNO>
</METER>
</METERS>




import java.io.*;
import org.w3c.dom.*;
import javax.xml.parsers.*;
public class XMLReader {

public void paseXml(String filepath) throws Exception {
try {

File f = new File("D:/jiexi2.xml");

DocumentBuilderFactory factory=DocumentBuilderFactory
.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();

Document doc = builder.parse(f);

 
// Element root = doc.getDocumentElement();
// NodeList nl1 = root.getElementsByTagName("AMMETERNO");
//     Element e = (Element) nl1.item(0);
//     String hlrId=e.getAttribute("NODE");
//     System.out.println(hlrId);
   
   
   
    //新的测试
    Element element = doc.getDocumentElement();
   
    NodeList METERs = element.getElementsByTagName("METER");
   
    for(int i=0;i<METERs.getLength();i++){
    Element bookElement = (Element) METERs.item(i);
    NodeList childNodes = bookElement.getChildNodes();
   
    for(int j=0;j<childNodes.getLength();j++){
   
    Node node = childNodes.item(j);
    if (node.getNodeType()== Node.ELEMENT_NODE){
   
    childNodes.item(j).getAttributes(); 
   
    Element c1 = (Element)childNodes.item(j);
   
    String hlrId3=c1.getAttribute("NODE");
   
    System.out.println(childNodes.item(j).getNodeName() +" :2");
    System.out.println(hlrId3+ " :3");
   
    }
    }

    }

} catch (Exception e) {
e.printStackTrace();
}
}
}


输出结果
AMMETERNO :2
电表编码 :3

METERNO :2
电表编码 :3