java object对象序列化,java对象序列化readObject / defaultReadObject

defaultReadObject()调用默认的反序列化机制,并在Serializable类上定义readObject()方法时使用.换句话说,当您具有自定义反序列化逻辑时,您仍然可以返回到默认序列化,这将反序列化非静态非瞬态字段.例如：

public class SomeClass implements Serializable {

private String fld1;

private int fld2;

private transient String fld3;

private void readObject(java.io.ObjectInputStream stream)

throws IOException, ClassNotFoundException {

stream.defaultReadObject(); //fills fld1 and fld2;

fld3 = Configuration.getFooConfigValue();

}

]

另一方面,当您从反序列化对象外部创建ObjectInputStream并且想要读取先前序列化的对象时,将使用readObject()：

ObojectInputStream stream = new ObjectInputStream(aStreamWithASerializedObject);

Object foo = (Foo) stream.readObject();