XStream 是一个轻量级的、简单易用的开放源代码Java™库，用于将 Java 对象序列化为 XML 或者再转换回来
XStream 对象相当Java对象和XML之间的转换器，转换过程是双向的。创建XSteam对象的方式很简单，只需要new XStream()即可。Java 到xml，用toXML()方法。Xml到Java，用fromXML()方法。在没有任何设置默认情况下，java到xml的映射，是java成员名对应xml的元素名，java类的全名对应xml根元素的名字。而实际中，往往是xml和java类都有了，要完成相互转换，必须进行别名映射。 XStream 的编码:本身并没有实现编码，必须依靠java.io.Writer来实现输出编码的转换。XStream 的常用方法xstream.omitField(mytest.class,"name");定义某一个属性的值不进行xml序列化。xstream.alias("cat", Cat.class); 对某一个类进行别名定义xstream.aliasField("age",Cat.class, "mAge");对某一个类的属性进行别名定义。xstream.useAttributeFor(String.class);对所有String类型的字段定义为属性tag显示xstream.useAttributeFor("name".String.class);对所有String类型的字段名成为name 定义为属性tag显示package com.ljh.bean;public class Address { private int id; private String addressName; public Address(){} public Address(int id, String addressName) { this.id= id; this.addressName= addressName; } public int getId() { return id; } public void setId(int id) { this.id= id; } public String getAddressName() { return addressName; } public void setAddressName(String addressName) { this.addressName= addressName; }}package com.ljh.bean;import java.util.ArrayList;import java.util.Date;import java.util.List;public class Person { private int id; private String name; private int age; private String birthday; private List<Address> addresses = new ArrayList<Address>(); private Date date = new Date(); public Person(int id, String name, int age,String birthday) { this.id= id; this.name= name; this.age= age; this.birthday= birthday; } public List<Address> getAddresses() { return addresses; } public void setAddresses(List<Address> addresses) { this.addresses= addresses; } public Date getDate() { return date; } public void setDate(Date date) { this.date= date; } public String getBirthday() { return birthday; } public void setBirthday(String birthday) { this.birthday= birthday; } public int getId() { return id; } public void setId(int id) { this.id= id; } 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 void add(Address address){ addresses.add(address); }}package com.ljh.xstream;import java.io.PrintWriter;import com.ljh.bean.Address;import com.ljh.bean.Person;import com.thoughtworks.xstream.XStream;public class XStreamTest { public static void main(String[] args) throws Exception { Address address1 = new Address(1,"北京"); Address address2 = new Address(2,"天津"); Address address3 = new Address(3,"上海"); Person p = new Person(1,"ljh",38,"2111-11-11 11:11"); p.add(address1); p.add(address2); p.add(address3); XStream xstream = new XStream(); //对某一个类进行别名定义 xstream.alias("地址",Address.class); xstream.alias("联系人",Person.class); //对某一个类的属性进行别名定义 xstream.aliasField("编号",Person.class, "id"); xstream.aliasField("姓名",Person.class, "name"); xstream.aliasField("年龄",Person.class, "age"); xstream.aliasField("联系方式",Person.class, "addresses"); xstream.aliasField("编号",Address.class, "id"); xstream.aliasField("名称",Address.class, "addressName"); xstream.aliasField("生日",Person.class, "birthday"); //定义某一个属性的值不进行xml序列化。 xstream.omitField(Person.class,"date"); //对id字段定义为属性显示 xstream.useAttributeFor(Person.class,"id"); xstream.useAttributeFor(Address.class,"id"); //对所有String类型的字段名成为name 定义为属性tag显示 //xstream.useAttributeFor("name".String.class); xstream.toXML(p,new PrintWriter("c:\\person.xml","utf-8")); }}
posted on 2012-03-31 11:01
gzakoa 阅读(1772)
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