java xml 转换
java --> xml
原理是用反射机制将对象中的属性映射出来，通过xml来排版
xml --> java
用sax解析每一行数据，调用反射将值放到对象中用XStream来进行转换

XStream xstream = new XStream();xstream.alias("person", Person.class);Person person = new Person("XP", "male", 29);// 自己定义的构造函数person.setPhoneNumber(new PhoneNumber("027", "88386666"));String xml = xstream.toXML(person);System.out.println(xml);System.out.println("-------------");Person p2 = (Person) xstream.fromXML(xml);System.out.println(p2.getName());System.out.println(p2.getSex());System.out.println(p2.getPhoneNumber().getNumber());System.out.println("-------------");

public class Person {private String name;private String sex;private int age;private PhoneNumber phoneNumber;}

public class PhoneNumber {private String code;private String number;}