如何序列化在java中实现的链表？ [英] How to serialize a linked list implemented in java?

问题描述

我在网上读到，通过将派生对象声明为瞬态，可以省略序列化。但是，在链表的情况下，链接是对象之间的内存引用。那么，我应该将它转换为数组并存储数组表示吗？

I read online that serialization can be omitted for derived objects by declaring them as transient. But, in case of linked list the links are memory references between objects. So, should I convert it to array and store the array representation?

推荐答案

以下是Java序列化的方法 LinkedList ：它获取所有元素并将它们与大小一起写入 ObjectOutputStream 。当然，声明标题条目瞬态

Here's how Java serializes LinkedList: it fetches all elements and writes them to the ObjectOutputStream, together with the size. And of course declares the header entry transient

参见 writeObject 和 readObject 的方法LinkedList ：

// Write out any hidden serialization magic
s.defaultWriteObject();

// Write out size
s.writeInt(size);

// Write out all elements in the proper order.
for (Entry e = header.next; e != header; e = e.next)
    s.writeObject(e.element);

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