XStream实现xml和java对象之间的互相转换，同理JSON也可以

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首先去官网下载响应JAR包

http://xstream.codehaus.org/index.html

最少需要两个jar包，一个xstream.jar，一个是xmlpull.jar

首先来看下java对象到xml的转换

package xml;

class PhoneNumber {
	
	private int code;
	
	private int number;

	public int getCode() {
		return code;
	}

	public void setCode(int code) {
		this.code = code;
	}

	public int getNumber() {
		return number;
	}

	public void setNumber(int number) {
		this.number = number;
	}
	
}

public class Person {

	private String username;
	
	private int age;
	
	private PhoneNumber pn;

	public String getUsername() {
		return username;
	}

	public void setUsername(String username) {
		this.username = username;
	}

	public int getAge() {
		return age;
	}

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

	public PhoneNumber getPn() {
		return pn;
	}

	public void setPn(PhoneNumber pn) {
		this.pn = pn;
	}
	
}

package xml;

import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.io.xml.StaxDriver;

public class XmlUtils {

	private static XStream xs = new XStream(new StaxDriver());
	
	public static String objToXml(Object obj) {
		//xs.aliasPackage(name, pkgName);
		return xs.toXML(obj);
	}
	
	public static void main(String[] args) {
		Person p = new Person();
		p.setAge(26);
		p.setUsername("chiwei");
		PhoneNumber pn = new PhoneNumber();
		pn.setCode(188);
		pn.setNumber(67101080);
		p.setPn(pn);
		xs.alias("person", Person.class);
		String xml = objToXml(p);
		Person per = (Person)xs.fromXML(xml);
		System.out.println(xml);
		System.out.println(per.getUsername());
	}
}

<?xml version="1.0" ?><person><username>chiwei</username><age>26</age><pn><code>188</code><number>67101080</number></pn></person>

这里xstream实例化时候传入了StaxDriver表示A driver using the StAX API to create XML reader and writer.

如果你使用xpp3driver，你需要引入该jar包

后面则根据上面转换后的xml继续转换成相应的对象Person

<?xml version="1.0" ?><person><username>chiwei</username><age>26</age><pn><code>188</code><number>67101080</number></pn></person>
chiwei

很简单

XStream实现xml和java对象之间的互相转换，同理JSON也可以

标签：http   使用   java   io   ar   代码   html   sp   on   

原文地址：http://blog.csdn.net/simonchi/article/details/38926817