利用Java语言创建一个xml格式的文件

利用Java语言创建一个xml格式的文件

package com;

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.util.Random;

import org.dom4j.Document;
import org.dom4j.DocumentHelper;
import org.dom4j.Element;
import org.dom4j.io.OutputFormat;
import org.dom4j.io.SAXReader;
import org.dom4j.io.XMLWriter;
import org.dom4j.tree.DefaultDocument;

public class BuildXml {

 public static void main(String[] args) {

  BuildXml xml = new BuildXml();

  String fileName = "src/student.xml";
  String[] studentName = { "张三丰", "花木兰", "郭靖", "任我行" };
  String[] courseName = { "射箭", "骑马", "烹饪" };
  xml.buildXml(fileName, studentName, courseName);
 }

 public void buildXml(String fileName, String[] studentName,
   String[] courseName) {

  // 建立doc对象
  Document doc = DocumentHelper.createDocument();
  // 建立xml文档的Record根对象
  Element recordElement = doc.addElement("Record");
  // 为Record根建立一个Head节点
  Element headElement = recordElement.addElement("Head");
  // 为Record根建立一个body节点
  Element bodyElement = recordElement.addElement("Body");
  // 为Head节点添加一些子节点
  Element codeEl = headElement.addElement("Code");
  codeEl.setText("SD1101");
  Element examEl = headElement.addElement("Exam");
  examEl.setText("是");

  // 调用本类的方法，增加子节点
  addParamList(bodyElement, courseName, studentName);

  // 格式化输出xml文档，并解决中文问题
  try {
   FileWriter fileWriter = new FileWriter(fileName);

   // 设置了创建xml文件的格式为缩进的
   OutputFormat xmlFormat = OutputFormat.createPrettyPrint();
   // 设置文件编码格式
   xmlFormat.setEncoding("gbk");
   // 创建写文件方法
   XMLWriter xmlWriter = new XMLWriter(fileWriter, xmlFormat);
   // 写入文件
   xmlWriter.write(doc);
   // 关闭
   xmlWriter.close();
  } catch (IOException e) {
   e.printStackTrace();
  }

 }

 private void addParamList(Element bodyEl, String[] courseName,
   String[] studentName) {
  /** 有多少种课程就产生多少个对象 */
  for (int i = 0; i < courseName.length; i++) {
   Element courseList = bodyEl.addElement("CourseList");
   Element sheehEl = courseList.addElement("CourseCode");
   sheehEl.setText(courseName[i]);
   /** 假设每个学生选修全部课程 */
   addItem(studentName, courseList);
  }
 }

 private void addItem(String[] studentName, Element courseList) {
  Element paramEl = courseList.addElement("Student");
  for (int i = 0; i < studentName.length; i++) {
   Element studentNameEl = paramEl.addElement("StudentName");
   studentNameEl.setText(studentName[i]);

   studentNameEl.addAttribute("score", new Random().nextInt(100) + "");
  }
 }
}