xStream完美转换XML、JSON

xStream框架

xStream可以轻易的将Java对象和xml文档相互转换，而且可以修改某个特定的属性和节点名称，而且也支持json的转换；

一、准备工作

1、 下载jar包、及官方资源

xStream的jar下载地址：

https://nexus.codehaus.org/content/repositories/releases/com/thoughtworks/xstream/xstream-distribution/1.3.1/xstream-distribution-1.3.1-bin.zip

官方的示例很全，官方参考示例：http://xstream.codehaus.org/tutorial.html

添加xstream-1.4.2.jar文件到工程中，就可以开始下面的工作；需要的jar如下：



2、 测试用例代码

POJO-1

package com.upop.pojo;

public class PhoneNumber {

private int code;

private String number;

public PhoneNumber(){

}

public PhoneNumber(int code, String number) {

super();

this.code = code;

this.number = number;

}

public int getCode() {

return code;

}

public void setCode(int code) {

this.code = code;

}

public String getNumber() {

return number;

}

public void setNumber(String number) {

this.number = number;

}

}

POJO-2

package com.upop.pojo;

public class Person {

private String firstname;

private String lastname;

private PhoneNumber phone;

private PhoneNumber fax;

public Person(){

}

public Person(String firstname,String lastname){

}

public Person(String firstname, String lastname, PhoneNumber phone,

PhoneNumber fax) {

super();

this.firstname = firstname;

this.lastname = lastname;

this.phone = phone;

this.fax = fax;

}

public String getFirstname() {

return firstname;

}

public void setFirstname(String firstname) {

this.firstname = firstname;

}

public String getLastname() {

return lastname;

}

public void setLastname(String lastname) {

this.lastname = lastname;

}

public PhoneNumber getPhone() {

return phone;

}

public void setPhone(PhoneNumber phone) {

this.phone = phone;

}

public PhoneNumber getFax() {

return fax;

}

public void setFax(PhoneNumber fax) {

this.fax = fax;

}

}

二、Java转换成XML或JSON

package com.upop.pojo;

import org.junit.Test;

import com.thoughtworks.xstream.XStream;

import com.thoughtworks.xstream.io.json.JettisonMappedXmlDriver;

public class XStreamTest {

private XStream xstream = null;

@Test

public void testXml() {

try {

xstream = new XStream();

xstream.alias("person", Person.class);

//xstream.alias("phonenumber", PhoneNumber.class);

Person joe = new Person("Joe", "Walnes");

joe.setPhone(new PhoneNumber(123, "1234-456"));

joe.setFax(new PhoneNumber(123, "9999-999"));

System.out.println(xstream.toXML(joe));

} catch (Exception e) {

e.printStackTrace();

}

}

@Test

public void testJson(){

XStream xstream = new XStream(new JettisonMappedXmlDriver());

xstream.setMode(XStream.NO_REFERENCES);

xstream.alias("person", Person.class);

Person joe = new Person("Joe", "Walnes");

joe.setPhone(new PhoneNumber(123, "1234-456"));

joe.setFax(new PhoneNumber(123, "9999-999"));

System.out.println(xstream.toXML(joe));

}

}