/*** XML读写示例* @author hx**/
public class XmlReaderWriter{/*** 读取一个XML文件，返回一个雇员链表* @param fileName* @return*/public List<Employee> readXml(String fileName){List<Employee> employees=new ArrayList<Employee>();SAXReader reader = new SAXReader();try {Document  document = reader.read(new File(fileName));Element root = document.getRootElement();List nodes = root.elements("employee");for (Iterator it = nodes.iterator(); it.hasNext();) {Employee employee=new Employee();// 根节点下的雇员子节点Element employeeElm = (Element) it.next();// 获取雇员子节点的id属性Attribute attribute=employeeElm.attribute("id");employee.setId(Long.parseLong(attribute.getText()));// 将文本形式的long字符串还原成基本类型// 获得雇员子节点的名称子节点Element nameElm=employeeElm.element("name");employee.setName(nameElm.getText());// 获取名称子节点的文字// 获取雇员子节点的性别子节点的文字employee.setMale(Boolean.parseBoolean(employeeElm.element("ismale").getText()));// 将雇员信息放入链表
                employees.add(employee);}} catch (DocumentException e) {// TODO Auto-generated catch block
            e.printStackTrace();}return employees;}/*** 将一个雇员链表写入XML文档* @param employees* @param fileName*/public void writerToFile(List<Employee> employees,String fileName){// 创建文档对象Document document = DocumentHelper.createDocument();// 创建根节点Element root = document.addElement("employees");for(Employee emp:employees){// 创建employee节点Element empElm = root.addElement("employee");// 创建employee节点的id属性empElm.addAttribute("id", String.valueOf(emp.getId()));// 创建employee节点的子节点nameElement nameElm = empElm.addElement("name");nameElm.setText(emp.getName());// 设置子节点的文字// 创建employee节点的子节点ismale            Element ismaleElm = empElm.addElement("ismale");ismaleElm.setText(String.valueOf(emp.isMale()));// 设置子节点的文字
        }// 将document文档对象写入文件
        XMLWriter writer;try {writer = new XMLWriter(new FileWriter(fileName));writer.write(document);writer.close();} catch (IOException e) {// TODO Auto-generated catch block
            e.printStackTrace();}       }public static void main(String[] args){List<Employee> employees=new ArrayList<Employee>();/*employees.add(new Employee(1,"Andy",true));employees.add(new Employee(2,"Bill",false));employees.add(new Employee(3,"Cindy",true));employees.add(new Employee(4,"Doutglas",false));XmlReaderWriter xmlReaderWriter=new XmlReaderWriter();xmlReaderWriter.writerToFile(employees, "Employees20140724.xml");*/XmlReaderWriter xmlReaderWriter=new XmlReaderWriter();List<Employee> employee=xmlReaderWriter.readXml("Employees20140724.xml");employee=null;}
}

public class Employee{private long id;private String name;private boolean isMale;public Employee(){}public Employee(long id,String name,boolean isMale){this.id=id;this.name=name;this.isMale=isMale;}public long getId() {return id;}public void setId(long id) {this.id = id;}public boolean isMale() {return isMale;}public void setMale(boolean isMale) {this.isMale = isMale;}public String getName() {return name;}public void setName(String name) {this.name = name;}
}