java序列化与反序列化

 开始学习java序列化与反序列化，写出了个初步代码。

这是一个用户类：

import java.io.Serializable;

public class User implements Serializable {
    /**
     *
     */
    private static final long serialVersionUID = 1L;
    public String name;
    public String sex;
    public int age;

    public User() {
    }

    public User(String name, String sex, int age) {
        this.name = name;
        this.sex = sex;
        this.age = age;
    }

    public String toString(){
        return "用户名："+name+"性别："+sex+"年龄："+age;
    }

}

下面将对其进行序列化与反序列化操作：

import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.util.Date;

public class Test {
    public static void serialize(String filePath) {
        try {
            ObjectOutputStream out = new ObjectOutputStream(
                    new FileOutputStream(filePath));
            out.writeObject("序列化时间为：");
            out.writeObject(new Date());
            User user = new User("admin", "male", 10);
            out.writeObject(user);
            out.close();
        } catch (Exception e) {
            System.out.println(e.toString());
        }
    }
    public static void deserialize(String filePath){
        try {
            ObjectInputStream in=new ObjectInputStream(new FileInputStream(filePath));
            String time=(String)(in.readObject());
            Date date=(Date)(in.readObject());
            User user=(User)(in.readObject());
            System.out.println(time);
            System.out.println(date);
            System.out.println(user);
        } catch (Exception e) {
            System.out.println(e.toString());
        }
    }
    public static  void main(String[]args){
        serialize("E:\\testserialize.txt");
        System.out.println("serialize completed!");
        deserialize("E:\\testserialize.txt");
        System.out.println("deserialize completed!");
    }

}

运行之后，在控制台输出：

 

serialize completed!
序列化时间为：
Wed Jun 13 23:31:54 CST 2012
用户名：admin性别：male年龄：10
deserialize completed!