java 反序列化深度克隆Object

最新推荐文章于 2025-09-12 14:34:11 发布

原创最新推荐文章于 2025-09-12 14:34:11 发布 · 717 阅读

2 ·

CC 4.0 BY-SA版权

文章标签：

#java #object #null #exception

java拾贝专栏收录该内容

23 篇文章

订阅专栏

本文介绍了一种通过序列化方式实现Java对象深克隆的方法。该方法利用了ByteArrayOutputStream、ObjectOutputStream、ByteArrayInputStream和ObjectInputStream等类来完成对象的复制过程。首先将对象写入字节数组中，然后从字节数组中读取对象，从而得到一个与原对象内容完全相同的副本。

public static Object deepClone(Object object) {
        ByteArrayOutputStream byteArrayOutputStream = null;
        ObjectOutputStream objectOutputStream = null;
        ByteArrayInputStream byteArrayInputStream = null;
        ObjectInputStream objectInputStream = null;

        try {
            byteArrayOutputStream = new ByteArrayOutputStream();
            objectOutputStream = new ObjectOutputStream(byteArrayOutputStream);

            objectOutputStream.writeObject(object);

            byteArrayInputStream = new ByteArrayInputStream(byteArrayOutputStream.toByteArray());
            objectInputStream = new ObjectInputStream(byteArrayInputStream);

            return objectInputStream.readObject();
        } catch (Exception e) {
            log.error("clone object error:" + e.getMessage());
            throw new IllegalStateException(e);
        } finally {
            try {
                if (byteArrayInputStream != null) {
                    byteArrayInputStream.close();
                }
                if (byteArrayOutputStream != null) {
                    byteArrayOutputStream.close();
                }
                if (objectOutputStream != null) {
                    objectOutputStream.close();
                }
                if (objectOutputStream != null) {
                    objectOutputStream.close();
                }
                if (objectInputStream != null) {
                    objectInputStream.close();
                }
            } catch (IOException e) {
                throw new IllegalStateException(e);
            }
        }
    }