使用groovy将类序列化到xml并输出

import com.thoughtworks.xstream.*

class Staff {
    String firstname, lastname, position
}

def xstream = new XStream()
def john = new Staff(firstname:'John',
                     lastname:'Connor',
                     position:'Resistance Leader')

println xstream.toXML(john)  //console输出转换的结果

new File("c:/john.xml").withOutputStream { out ->    //打印到一个文件里
    xstream.toXML(john, out)
}