中文XML论坛 - 专业的XML技术讨论区--显示贴子

以文本方式查看主题

-  中文XML论坛 - 专业的XML技术讨论区  (http://bbs.xml.org.cn/index.asp)
--  『 XML源码及示例(仅原创和转载) 』  (http://bbs.xml.org.cn/list.asp?boardid=32)
----  求救“xml”出错拉  (http://bbs.xml.org.cn/dispbbs.asp?boardid=32&rootid=&id=22168)

--  作者：冷锋
--  发布时间：9/13/2005 9:23:00 AM

--  求救“xml”出错拉
private void readXMLFile(String inFile) throws Exception {
//为解析XML作准备，创建DocumentBuilderFactory实例，指定DocumentBuilderDocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();
DocumentBuilder db = null;
try {db = dbf.newDocumentBuilder();
}
catch (ParserConfigurationException pce) {
System.err.println(pce);
System.exit(1);
}
Document doc = null;try {
doc = db.parse(inFile);
}
catch (DOMException dom) {
System.err.println(dom.getMessage());System.exit(1);
}
catch (IOException ioe) {System.err.println(ioe);System.exit(1);
}
//下面是解析XML的全过程，比较简单，先取根元素”学生花名册“Element root = doc.getDocumentElement();
//取“学生“元素列表NodeList students = root.getElementsByTagName("学生");
for (int i = 0; i < students.getLength(); i++) {
//依次取每个“学生”元素Element student = (Element) students.item(i);
//创建一个学生的Bean实例StudentBean studentBean = new StudentBean();
//取学生的性别属性studentBean.setSex(student.getAttribute("性别"));
//取“姓名”元素，下同NodeList names = student.getElementsByTagName("姓名");
if (names.getLength() == 1) {
Element e = (Element) names.item(0);Text t = (Text) e.getFirstChild();
studentBean.setName(t.getNodeValue());
}
NodeList ages = student.getElementsByTagName("年龄");if (ages.getLength() == 1) {
Element e = (Element) ages.item(0);
Text t = (Text) e.getFirstChild();studentBean.setAge(Integer.parseInt(t.getNodeValue()));
}
NodeList phones = student.getElementsByTagName("电话");if (phones.getLength() == 1) {
Element e = (Element) phones.item(0);
Text t = (Text) e.getFirstChild();studentBean.setPhone(t.getNodeValue());
  }
student_Vector.add(studentBean);
  }
}
private void writeXMLFile(String outFile) throws Exception {
//为解析XML作准备，创建DocumentBuilderFactory实例，指定DocumentBuilderDocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();DocumentBuilder db = null;try {db = dbf.newDocumentBuilder();
}
catch (ParserConfigurationException pce) {
System.err.println(pce);System.exit(1);
}
Document doc = null;doc = db.newDocument();
//下面是建立XML文档内容的过程，先建立根元素“学生花名册”Element root = doc.createElement("学生花名册");
//根元素添加上文档doc.appendChild(root);
//取学生信息的Bean列表for (int i = 0; i < student_Vector.size(); i++) {
//依次取每个学生的信息StudentBean studentBean = (StudentBean) student_Vector.get(i);
//建立“学生”元素，添加到根元素Element student = doc.createElement("学生");
student.setAttribute("性别", studentBean.getSex());root.appendChild(student);
//建立“姓名”元素，添加到学生下面，下同Element name = doc.createElement("姓名");
student.appendChild(name);Text tName = doc.createTextNode(studentBean.getName());name.appendChild(tName);
Element age = doc.createElement("年龄");student.appendChild(age);Text tAge =doc.createTextNode(String.valueOf(studentBean.getAge()));
age.appendChild(tAge);Element phone = doc.createElement("电话");student.appendChild(phone);Text tPhone = doc.createTextNode(studentBean.getPhone());phone.appendChild(tPhone);
}
//把XML文档输出到指定的文件FileOutputStream outStream = new FileOutputStream(outFile);OutputStreamWriter outWriter = new OutputStreamWriter(outStream);((XmlDocument) doc).write(outWriter, "GB2312");outWriter.close();outStream.close();
}
最后加入测试主函数，如下：public static void main(String[] args) throws Exception {
//建立测试实例 XMLTest xmlTest = new XMLTest();
//初始化向量列表xmlTest.student_Vector = new Vector();System.out.println("开始读Input.xml文件");
xmlTest.readXMLFile("Input.xml");System.out.println("读入完毕,开始写Output.xml文件");
xmlTest.writeXMLFile("Output.xml");System.out.println("写入完成");
}

W 3 C h i n a ( since 2003 ) 旗下站点
苏ICP备05006046号《全国人大常委会关于维护互联网安全的决定》《计算机信息网络国际联网安全保护管理办法》

7,264.648ms