package com.cocoomg.xml;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
public class DOM02 {
public static void printNodeAttr(Node node){
NamedNodeMap namedNodeMap=node.getAttributes();
for(int i=0;i<namedNodeMap.getLength();i++){ //遍历属性节点
Node attrNode=namedNodeMap.item(i);
System.out.println(attrNode.getNodeName()+":"+attrNode.getFirstChild().getNodeValue());
}
}
public static void main(String[] args) {
DocumentBuilderFactory factory=DocumentBuilderFactory.newInstance();//获取工厂实例
try {
DocumentBuilder builder=factory.newDocumentBuilder(); //通过Builder 解析 XML
Document doc=builder.parse("src/students.xml"); //获得文档
NodeList nodeList=doc.getElementsByTagName("students"); //通过标签名字获取节点
Element element=(Element)nodeList.item(0);
NodeList studentsNodeList=element.getElementsByTagName("student"); //通过标签名字获取节点
for(int i=0;i<studentsNodeList.getLength();i++){
Element e=(Element)studentsNodeList.item(i); //Element 是 Node 的一个子类,功能比 Node 多
System.out.println("姓名:"+e.getElementsByTagName("name").item(0).getFirstChild().getNodeValue());
printNodeAttr(e.getElementsByTagName("name").item(0));
System.out.println("性别:"+e.getElementsByTagName("sex").item(0).getFirstChild().getNodeValue());
System.out.println("年龄:"+e.getElementsByTagName("age").item(0).getFirstChild().getNodeValue());
System.out.println("================");
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}