DOM解析XML 并保存数据结构

package com.jiang.dom;

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

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.w3c.dom.NodeList;
import org.xml.sax.SAXException;

public class DOMTest {

public static void print(List<Book> temp){
    for (Book book : temp) {
        System.out.println(book);
    }
}

public static void main(String[] args) {
    // TODO Auto-generated method stub          
    List<Book> books = new ArrayList<Book>();
    DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
    try {
        DocumentBuilder db = dbf.newDocumentBuilder();
        Document document = db.parse("E:/temp/books.xml");
        NodeList bookList = document.getElementsByTagName("book");

        for(int i = 0; i < bookList.getLength(); i++){
            String id = null,name = null,author = null,year = null,price = null,language = null;
            Node book = bookList.item(i);
            NamedNodeMap attrs = book.getAttributes();
            for(int j = 0; j < attrs.getLength(); j++){
                Node attr = attrs.item(j);
                id = attr.getNodeValue();
                System.out.println(attr.getNodeName() + ":" + attr.getNodeValue());
            }
            NodeList childNodes = book.getChildNodes();
            for(int k = 0; k < childNodes.getLength(); k++){
                if(childNodes.item(k).getNodeType() == Node.ELEMENT_NODE){
                    Node childNode = childNodes.item(k);
                    System.out.println(childNode.getNodeName() + ":" + childNode.getFirstChild().getNodeValue());
                    String valueName = childNode.getNodeName();
                    if(valueName.equals("name")){
                        name = childNode.getFirstChild().getNodeValue();
                    }else if(valueName.equals("author")){
                        author = childNode.getFirstChild().getNodeValue();
                    }else if(valueName.equals("year")){
                        year = childNode.getFirstChild().getNodeValue();
                    }else if(valueName.equals("price")){
                        price = childNode.getFirstChild().getNodeValue();
                    }else if(valueName.equals("language")){
                        language = childNode.getFirstChild().getNodeValue();
                    }
                }               
            }
            Book b = new Book(id, name, author, year, price, language);
            books.add(b);
        }
        DOMTest.print(books);
    } catch (ParserConfigurationException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (SAXException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    } catch (IOException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
}

}

第一次发笔记 好怕怕 大牛勿喷