先定義一需要建立的XMl的類，裡面放需要的屬性

public class Person {
    String person;
    String name;
    int age;
    String sex;
    int tel;

    public String getPerson() {
        return person;
    }

    public void setPerson(String person) {
        this.person = person;
    }

    public String getName() {
        return
 
 name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    public String getSex() {
        return sex;
    }

    public void setSex(String sex) {
        this
 
.sex = sex;
    }

    public int getTel() {
        return tel;
    }

    public void setTel(int tel) {
        this.tel = tel;
    }


    public Person() {
        super();
    }

    protected Person(String person, String name, int age, String sex, int tel) {
        super();
        this.person = person;
        this
 
.name = name;
        this.age = age;
        this.sex = sex;
        this.tel = tel;
    }

    @Override
    public String toString() {
        return "Person [person=" + person + ", name=" + name + ", age=" + age
                + ", sex=" + sex + ", tel=" + tel + "]";
    }



}

public class XmlEncodeDemo {

    public static void main(String[] args) {
        //注意Person裡面的屬性定義都是public
        Person p=new Person("1","小王",18,"nv",134);
        Person p2=new Person("2","小王",18,"nv",134);
        BufferedOutputStream out;
        try {
            out = new  BufferedOutputStream(new FileOutputStream("D:\\person.xml"));
            XMLEncoder encode=new XMLEncoder(out);
            encode.writeObject(p);
            encode.writeObject(p2);
            encode.close();
        } catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }
}