XML 文件的操作(二)

<?xml version="1.0" encoding="gb2312"?>

<?xml-stylesheet type="text/xsl" href="students.xsl"?>

<students>
    <student sn="01">
        <name>张三</name>
        <age>18</age>
    </student>

    <student sn="02">
        <name>李四</name>
        <age>20</age>
    </student>
</students>

<?xml version="1.0" encoding="gb2312"?>
<?xml-stylesheet type="text/xsl" href="students.xsl"?>
<students>
<student sn="01">
<name>张三</name>
<age>18</age>
</student>
<student sn="02">
<name>李四</name>
<age>20</age>
</student>
</students>

DOM循环遍历获取所有节点

package com.ibm.xml;

import java.io.File;
import java.io.IOException;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;

import org.w3c.dom.Document;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.xml.sax.SAXException;

/**
 * 循环遍历获取所有节点
 * @author Administrator
 *
 */
public class DOMPrinter {

    /**
     * 打印节点名称
     * @param node
     */
    public static void printNodeInfo(Node node)
    {
        System.out.println(node.getNodeName()+" : "+node.getNodeValue());
    }

    /**
     * 通过节点判断
     * @param node
     */
    public static void printNode(Node node)
    {
        short nodeType=node.getNodeType();
        switch(nodeType)
        {
        //指令节点
        case Node.PROCESSING_INSTRUCTION_NODE:
            System.out.println("-----------PI start-----------");
            printNodeInfo(node);
            System.out.println("-----------PI end-----------");
            break;
        //元素节点
        case Node.ELEMENT_NODE:
            System.out.println("-----------Element start-----------");
            printNodeInfo(node);
            System.out.println("-----------Element end-----------");

            NamedNodeMap attrs=node.getAttributes();
            int attrNum=attrs.getLength();
            for(int i=0;i<attrNum;i++)
            {
                Node attr=attrs.item(i);
                System.out.println("-----------Attribute start-----------");
                printNodeInfo(attr);
                System.out.println("-----------Attribute end-----------");
            }
            break;
        case Node.TEXT_NODE:
            System.out.println("-----------Text start-----------");
            printNodeInfo(node);
            System.out.println("-----------Text end-----------");
            break;
        default:
            break;
        }

        Node child=node.getFirstChild();
        while(child!=null)
        {
            printNode(child);
            child=child.getNextSibling();
        }
    }