Java リフレクション メカニズムはカスタム シリアル化をどのように実装しますか?

import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; import java.lang.reflect.Field; import java.lang.reflect.Modifier; public class CustomSerializer { private static byte[] serialize(Object obj) throws IOException { ByteArrayOutputStream byteStream = new ByteArrayOutputStream(); ObjectOutputStream out = new ObjectOutputStream(byteStream); // 获取类元数据 Class clazz = obj.getClass(); // 遍历私有字段 Field[] fields = clazz.getDeclaredFields(); for (Field field : fields) { if (Modifier.isTransient(field.getModifiers()) || Modifier.isStatic(field.getModifiers())) { continue; } // 设置字段的可访问性 field.setAccessible(true); // 写入字段值 out.writeUTF(field.getName()); out.writeObject(field.get(obj)); } out.flush(); return byteStream.toByteArray(); } private static Object deserialize(byte[] data) throws IOException, ClassNotFoundException { ByteArrayInputStream byteStream = new ByteArrayInputStream(data); ObjectInputStream in = new ObjectInputStream(byteStream); // 反射获取类元数据 String className = in.readUTF(); Class clazz = Class.forName(className); Object obj = clazz.newInstance(); // 遍历字段并设置值 while (true) { String fieldName = in.readUTF(); if (fieldName.equals("")) { break; } Field field = clazz.getDeclaredField(fieldName); field.setAccessible(true); field.set(obj, in.readObject()); } return obj; } public static void main(String[] args) { Person person = new Person("John", 30); try { byte[] serializedData = serialize(person); Person deserializedPerson = deserialize(serializedData); System.out.println("反序列化后的对象： " + deserializedPerson); } catch (Exception e) { e.printStackTrace(); } } }