Java 직렬화를 사용자 정의하는 방법은 무엇입니까?

import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;

public class CustomSerializedClass implements Serializable {

    private String name;
    private transient int age; // 注解`transient`表示在序列化时忽略该字段

    @Override
    public void writeObject(ObjectOutputStream out) throws IOException {
        out.defaultWriteObject(); // 序列化非瞬时字段
        out.writeInt(age); // 手动序列化瞬时字段
    }

    @Override
    public void readObject(ObjectInputStream in) throws IOException {
        in.defaultReadObject(); // 反序列化非瞬时字段
        age = in.readInt(); // 手动反序列化瞬时字段
    }
}

import java.io.IOException;

public class CustomObjectOutputStream extends ObjectOutputStream {

    public CustomObjectOutputStream() throws IOException {
        super();
    }

    @Override
    public void writeBytes(Object obj) throws IOException {
        // 自定义序列化算法
        // ...
    }
}

public class EncryptedObjectOutputStream extends ObjectOutputStream {

    private Cipher cipher;

    public EncryptedObjectOutputStream(OutputStream out) throws IOException {
        super(out);
        cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
    }

    @Override
    public void writeBytes(Object obj) throws IOException {
        byte[] bytes = // 序列化对象
        cipher.doFinal(bytes);
        out.write(bytes);
    }
}