如何在Java中序列化不可序列化? [英] How to serialize a non-serializable in Java?

问题描述

如何序列化未实现Serializable的对象?我无法将其标记为可序列化，因为该类来自第三方库.

How can I serialize an object that does not implement Serializable? I cannot mark it Serializable because the class is from a 3rd party library.

推荐答案

您不能序列化未实现Serializable的类，但可以将其包装在可以实现此功能的类中.为此，您应该在包装器类上实现readObject和writeObject，以便可以以自定义方式序列化其对象.

You can't serialise a class that doesn't implement Serializable, but you can wrap it in a class that does. To do this, you should implement readObject and writeObject on your wrapper class so you can serialise its objects in a custom way.

• 首先，将您的不可序列化字段设置为transient.
• 在writeObject中，首先在流上调用defaultWriteObject来存储所有非瞬态字段，然后调用其他方法来序列化不可序列化对象的各个属性.
• 在readObject中，首先在流上调用defaultReadObject以读取所有非瞬态字段，然后调用其他方法(与您添加到writeObject的方法相对应)来反序列化不可序列化的对象.

• First, make your non-serialisable field transient.
• In writeObject, first call defaultWriteObject on the stream to store all the non-transient fields, then call other methods to serialise the individual properties of your non-serialisable object.
• In readObject, first call defaultReadObject on the stream to read back all the non-transient fields, then call other methods (corresponding to the ones you added to writeObject) to deserialise your non-serialisable object.

我希望这是有道理的. :-)

I hope this makes sense. :-)

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