Java 序列化与反序列化 —— 序列化为XML

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需要加载三个jar包。xstream-1.4.3.jar，xmlpull-1.1.3.1.jar，kxml2-2.3.0.jar。

Step1：创建一个实现了Serializable接口的类

import java.io.Serializable;public class Person implements Serializable {private static final long serialVersionUID = 172447632608611914L;private String name;private int age;public Person() {}public Person(String name, int age) {System.out.println("Inside Person's Constructor");this.name = name;this.age = age;}String getName() {return name;}int getAge() {return age;}@Overridepublic String toString() {return "Person [name=" + name + ", age=" + age + "]";}}

Step2：通过xstream.toXML方法写入xml文件

import java.io.FileOutputStream;import java.io.IOException;import java.util.ArrayList;import java.util.List;import com.thoughtworks.xstream.XStream;public class WritePersonToXML {private static List<Person> persons = new ArrayList<Person>();public static void main(String[] args) throws IOException {initData();String path = "xml/myPerson.xml";FileOutputStream fileOut = null;XStream out = null;try {fileOut = new FileOutputStream(path);out = new XStream();out.toXML(persons, fileOut);System.out.println("序列化XML文件成功");} catch (Exception e) {e.printStackTrace();} finally {if (fileOut != null)fileOut.close();}}public static void initData() {for (int i = 1; i <= 3; i++) {Person person = new Person("学生" + i, 18 + i);persons.add(person);}}}

Step3：通过xstream.fromXML读入xml文件并反序列化为对象

import java.io.FileInputStream;import java.io.IOException;import java.util.ArrayList;import com.thoughtworks.xstream.XStream;public class ReadPersonFromXml {@SuppressWarnings("unchecked")public static void main(String[] args) {String path = "xml/myPerson.xml";FileInputStream fileIn = null;try {fileIn = new FileInputStream(path);XStream in = new XStream();ArrayList<Person> persons = (ArrayList<Person>) in.fromXML(fileIn);// ArrayList<Person> persons = (ArrayList<Person>) new// XStream().fromXML("xml/myPerson.xml");if (persons != null) {for (Person p : persons) {System.out.println(p);}} else {System.out.println("反序列化XML文件失败");}} catch (Exception e) {e.printStackTrace();} finally {try {if (fileIn != null)fileIn.close();} catch (IOException e) {e.printStackTrace();}}}}

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