如何使用Java中的序列化和反序列化实现对象的持久化？

import java.io.*;

public class ByteStreamSerializationDemo {
    public static void main(String[] args) {
        // 将对象序列化为字节流
        try {
            // 创建一个待序列化的对象
            Person person = new Person("Tom", 30);
            
            // 创建一个输出流
            FileOutputStream fileOutputStream = new FileOutputStream("person.obj");
            ObjectOutputStream objectOutputStream = new ObjectOutputStream(fileOutputStream);
            
            // 将对象写入输出流
            objectOutputStream.writeObject(person);
            
            // 关闭输出流
            objectOutputStream.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        
        // 将字节流反序列化为对象
        try {
            // 创建一个输入流
            FileInputStream fileInputStream = new FileInputStream("person.obj");
            ObjectInputStream objectInputStream = new ObjectInputStream(fileInputStream);
            
            // 读取对象数据
            Person person = (Person) objectInputStream.readObject();
            
            // 打印对象数据
            System.out.println(person.getName());   // 输出：Tom
            System.out.println(person.getAge());    // 输出：30
            
            // 关闭输入流
            objectInputStream.close();
        } catch (IOException | ClassNotFoundException e) {
            e.printStackTrace();
        }
    }
}

class Person implements Serializable {
    private String name;
    private int age;
    
    // 构造方法、getter和setter省略
    
    public Person(String name, int age) {
        this.name = name;
        this.age = age;
    }
}

import java.io.*;

public class CharacterStreamSerializationDemo {
    public static void main(String[] args) {
        // 将对象序列化为字符流
        try {
            // 创建一个待序列化的对象
            Person person = new Person("Tom", 30);
            
            // 创建一个Writer
            FileWriter fileWriter = new FileWriter("person.txt");
            BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);
            ObjectWriter objectWriter = new ObjectWriter(bufferedWriter);
            
            // 将对象写入字符流
            objectWriter.writeObject(person);
            
            // 关闭字符流
            objectWriter.close();
        } catch (IOException e) {
            e.printStackTrace();
        }
        
        // 将字符流反序列化为对象
        try {
            // 创建一个Reader
            FileReader fileReader = new FileReader("person.txt");
            BufferedReader bufferedReader = new BufferedReader(fileReader);
            ObjectReader objectReader = new ObjectReader(bufferedReader);
            
            // 读取对象数据
            Person person = (Person) objectReader.readObject();
            
            // 打印对象数据
            System.out.println(person.getName());   // 输出：Tom
            System.out.println(person.getAge());    // 输出：30
            
            // 关闭字符流
            objectReader.close();
        } catch (IOException | ClassNotFoundException e) {
            e.printStackTrace();
        }
    }
}

class Person implements Serializable {
    private String name;
    private int age;
    
    // 构造方法、getter和setter省略
    
    public Person(String name, int age) {
        this.name = name;
        this.age = age;
    }
}