XStream xml json 转换

1、首先下载 xstream.jar和jettison.jar（转换为json时用到），并引入该包。
2、看如下代码吧：
import java.io.File;
import java.io.IOException;
import org.apache.commons.io.FileUtils;
import com.thoughtworks.xstream.XStream;
import com.thoughtworks.xstream.io.json.JettisonMappedXmlDriver;
import com.thoughtworks.xstream.io.xml.DomDriver;
public class Student {
private String name;
private String sex;
/*
* 构造函数
*/
public Student(String name, String sex) {
this.name = name;
this.sex = sex;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
/*
* 对象转换为 xml
* @return String
*/
public String toXml() {
XStream xStream = new XStream(new DomDriver());
return xStream.toXML(this);
}
/*
* 对象转换为json
* @return String
*/
public String toJson() {
XStream xStream = new XStream(new JettisonMappedXmlDriver());
return xStream.toXML(this);
}
/*
* xml类转换为对象
* @param String
* @return Student
*/
public Student toXmlObject(String xml) {
XStream xStream = new XStream(new DomDriver());
return (Student) xStream.fromXML(xml);
}
/*
* json转换为对象
* @param String
* @return Student
*/
public Student toJsonObject(String xml) {
XStream xStream = new XStream(new JettisonMappedXmlDriver());
return (Student) xStream.fromXML(xml);
}
public static void main(String[] arge) throws IOException {
Student student = new Student("张三", "男");
File file = new File("d:/student.xml");
// xml: 输出 转换为 xml
FileUtils.writeStringToFile(file, student.toXml());
// xml: 输入转换为对象
String in = FileUtils.readFileToString(file);
Student st = student.toXmlObject(in);
// json: 输出 转换为json
FileUtils.writeStringToFile(file, student.toJson());
// json: 输入转换为对象
in = FileUtils.re