package com.imooc.jdomtest;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import org.jdom2.Attribute;
import org.jdom2.Document;
import org.jdom2.Element;
import org.jdom2.JDOMException;
import org.jdom2.input.SAXBuilder;
import com.imooc.entity.Book;
public class JDOMTest {
/**
* @param args
*/
public static void main(String[] args) {
//private static ArrayList<Book> booksList =new ArrayList<Book>();
ArrayList<Book> booksList=new ArrayList<Book>();
// 进行对book.xml文件的JDOM解析
// 准备工作
// 1.创建一个SAXBuilder对象
SAXBuilder saxBuilder = new SAXBuilder();
InputStream in;
try {
// 2.创建一个输入流,将xml文件加载到输入流中
in = new FileInputStream("src/res/books.xml");
// 3.通过saxBuilder的build方法,将输入流加载到saxBuilder中
Document document = saxBuilder.build(in);
// 4.通过document对象获取xml文件的根节点
Element rootelement = document.getRootElement();
// 5.获取根节点下的子节点的List集合
List<Element> bookList = rootelement.getChildren();
// 继续进行解析
for (Element book : bookList) {
Book bookEntity= new Book();
System.out.println("=========开始解析第"
+ (bookList.indexOf(book) + 1) + "书==========");
// 解析book的属性
List<Attribute> attrList = book.getAttributes();
// 知道节点下属性名称时,获取节点值
// book.getAttributeValue("id");
// 遍历attrList(针对不清楚book节点下属性的名字及数量)
for (Attribute attr : attrList) {
// 获取属性名
String attrName = attr.getName();
// 获取属性值
String attrValue = attr.getValue();
System.out.println("属性名:" + attrName + "------属性值:"
+ attrValue);
if (attrName.equals("id")) {
bookEntity.setId(attrValue);
}
}
// 对book节点的子节点的节点名以及节点值
List<Element> bookChilds = book.getChildren();
for (Element child : bookChilds) {
System.out.println("节点名:" + child.getName() + "----节点值:"
+ child.getValue());
if (child.getName().equals("name")) {
bookEntity.setName(child.getValue());
}else if (child.getName().equals("author")) {
bookEntity.setAuthor(child.getValue());
}else if (child.getName().equals("year")) {
bookEntity.setYear(child.getValue());
}else if (child.getName().equals("price")) {
bookEntity.setPrice(child.getValue());
}else if (child.getName().equals("language")) {
bookEntity.setLanguage(child.getValue());
}
}
System.out.println("=========结束解析第"
+ (bookList.indexOf(book) + 1) + "书==========");
/*booksList.add(bookEntity);
bookEntity=null;*/
}
} catch (FileNotFoundException e) {
e.printStackTrace();
} catch (JDOMException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
}这里 //private static ArrayList<Book> booksList =new ArrayList<Book>();
ArrayList<Book> booksList=new ArrayList<Book>();为什么一加上private就报错
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