java生成xml格式文件的方法

import java.io.FileOutputStream;
import java.io.IOException;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.JDOMException;
import org.jdom.output.Format;
import org.jdom.output.XMLOutputter;
public class Java2XML {
  Book[] books = new Book[]
  {
      new Book("1","唐诗三百首"),
      new Book("2","Think in Java"),
      new Book("3","神雕侠侣"),
      new Book("4","葵花宝典")
  };
  public void BuildXMLDoc() throws IOException, JDOMException {
    // 创建根节点 并设置它的属性 ;
    Element root = new Element("books").setAttribute("count", "4");
    // 将根节点添加到文档中；
    Document Doc = new Document(root);
    for (int i = 0; i < books.length; i++) {
      // 创建节点 book;
      Element elements = new Element("book");
      // 给 book 节点添加子节点并赋值；
      elements.addContent(new Element("id").setText(books[i].getBook_id()));
      elements.addContent(new Element("name").setText(books[i].getBook_name()));
      //
      root.addContent(elements);
    }
    // 输出 books.xml 文件；
    // 使xml文件 缩进效果
    Format format = Format.getPrettyFormat();
    XMLOutputter XMLOut = new XMLOutputter(format);
    XMLOut.output(Doc, new FileOutputStream("c:/books.xml"));
  }
  public static void main(String[] args) {
    try {
      Java2XML j2x = new Java2XML();
      System.out.println("正在生成 books.xml 文件...");
      j2x.BuildXMLDoc();
    } catch (Exception e) {
      e.printStackTrace();
    }
    System.out.println("c:/books.xml 文件已生成");
  }
}