面试题--对象序列持久化

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今天闲下来，想到一道面试题，
对象A实现了序列化接口，
对象B为A的实例变量，未序列化，当把A对象持久化到文件中时，就会抛出NotSerializableException

也就是说，要持久化对象，或传输时，需要对其所引用的实例进行序列化，

public class NotSerializ {public String name = "aaaa";}

public class MySerializ implements Serializable{private static final long serialVersionUID = -7918349215312458095L;public NotSerializ  not;public long num = 9;public static void main(String[] args) {MySerializ mySerializ = new MySerializ();mySerializ.doSerializ();mySerializ.readSerializ();}private void readSerializ() {File file = new File("text.txt");try {FileInputStream out  = new FileInputStream(file);ObjectInputStream  oin = new ObjectInputStream (out);Object o = oin.readObject();System.out.println(((MySerializ)o).not.name);System.out.println(((MySerializ)o).num);oin.close();} catch (Exception e) {e.printStackTrace();}}private void doSerializ() {MySerializ o = new MySerializ();o.num = 3;o.not = new NotSerializ();File file = new File("text.txt"); try {FileOutputStream out  = new FileOutputStream(file);ObjectOutputStream  oput  = new ObjectOutputStream (out);oput.writeObject(o);oput.close();} catch (Exception e) {e.printStackTrace();}}}

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