java实现序列化的方法

public class User implements Serializable {
    //序列化ID
    private static final long serialVersionUID = 1L;
    private int age;
    private String name;
    //getter和setter方法、
    //toString方法}

public class Test {
    public static void main(String[] args) throws Exception, IOException {
        //SerializeUser();
        DeSerializeUser();
    }
    //序列化方法
    private static void SerializeUser() throws FileNotFoundException, IOException {
        User user = new User();
        user.setName("Java的架构师技术栈");
        user.setAge(24);
        //序列化对象到文件中
        ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("G://Test/template"));
        oos.writeObject(user);
        oos.close();
        System.out.println("序列化对象成功");
    }
    //反序列化方法
    private static void DeSerializeUser() throws FileNotFoundException, IOException{
        File file = new File("G://Test/template");
        ObjectInputStream ois = new ObjectInputStream(new FileInputStream(file));
        User newUser = (User)ois.readObject();
        System.out.println("反序列化对象成功"+newUser.toString());
    }}

public class User1 implements Externalizable{
    private int age;
    private String name;
    //getter、setter
    //toString方法
    
    public User1() {}
    
    @Override
    public void writeExternal(ObjectOutput out) throws IOException {
    }
    @Override
    public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
    }}