java - 实现 Serialized 的类无法读取Object

Question

我正在尝试将 Pair 序列化为以下内容:

private void writeObject(java.io.ObjectOutputStream out) throws IOException {
    if (mPair != null) {
        String first = mPair.first;
        String second = mPair.second;

        mPair = null;

        try {
            out.writeChars(first);
            out.writeChars("\n");
            out.writeChars(second);
        } catch (Exception e) {
        }
    }
}

private void readObject(java.io.ObjectInputStream in) throws IOException,
        ClassNotFoundException {
    try {
        String first = in.readLine();
        String second = in.readLine();

        mPair = new Pair<String, String>(first, second);
    } catch (EOFException e) {
        mPair = new Pair<String, String>("", "");
    }
}

当我的应用程序离开屏幕时，我调试了 writeObject 被正确调用，我有 3 个自定义类对象，但是当我返回应用程序时 readObject 从未被调用.

Answer 1

事实证明，这个简单的解决方案似乎有效:

public class SerializableStringPair extends Pair<String, String> implements
    Serializable {

    private static final long serialVersionUID = 1L;

    public SerializableStringPair(String first, String second) {
        super(first, second);
    }
}