跟著老師一起打的。對(duì)過(guò)了

package com.imooc.jdomtest;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.IOException;

import java.io.InputStream;

import java.util.List;

import org.jdom2.Document;

import org.jdom2.Element;

import org.jdom2.JDOMException;

import org.jdom2.input.SAXBuilder;

public class JDOMTest {

public static void main(String[] args) {

//進(jìn)行對(duì)books.xml文件的JDOM解析

//1.創(chuàng)建一個(gè)SAXBuilder對(duì)象

SAXBuilder saxBuilder = new SAXBuilder();

InputStream in;

try {

//2.創(chuàng)建一個(gè)輸入流，將XML文件加載到輸入流

in = new FileInputStream("src/res/books.xml");

//3.通過(guò)saxBuilder的build方法，將輸入流加載到saxBuilder中

Document document = saxBuilder.build(in);

//4.通過(guò)document對(duì)象獲取xml文件的根節(jié)點(diǎn)

Element rootElement = document.getRootElement();

//5.獲取根節(jié)點(diǎn)下的子節(jié)點(diǎn)的List集合

? ?List<Element> bookList = rootElement.getChildren();

? ?//6.繼續(xù)進(jìn)行解析

? ?for (Element book : bookList) {

? ?System.out.println("開始解析第"+(bookList.indexOf(book)+1)+"本書=========");

? ?System.out.println("結(jié)束解析第"+(bookList.indexOf(book)+1)+"本書=========");

}

} catch (FileNotFoundException e) {

e.printStackTrace();

} catch (JDOMException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

}

}

}

異常如下：

Exception in thread "main" java.lang.NoClassDefFoundError: org/jdom2/JDOMException

Caused by: java.lang.ClassNotFoundException: org.jdom2.JDOMException