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;
}
}
以上是一个普通的java对象
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());
}
}
以上代码，先是生成一个对象，给各个属性赋值，然后调用toXML将对象转换为xml格式的普通文本，注意在转换前调用了alias目的是为了将xml.Person重命名为person
<?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