Serialization in java permits some changes in the java class if they can be ignored. Some of the changes in class that will not affect the deserialization process are: Adding new variables to the class Changing the variables from transient to non-transient, for serialization it’s like having ...
例如一个Thread对象或一个FileInputStream对象,对于这些字段,我们必须用transient关键字标明,否则编译器将报措。 另外,串行化可能涉及将对象存放到磁盘上或在网络上发达数据,这时候就会产生安全问题。因为数据位于Java运行环境之外,不在Java安全机制的控制之中。对于这些需要保密的字段,不应保存在永久介质中,或者不应简单...
5) 对象串行化应允许对象定义自身 的格式 Java中对象的串行化 (Serialization )和transient关键字-金 色阳光 1.Java中对象的串行化 (Serialization )和transient关键字: 1. 对象的串行化( Serialization ) 一、串行化的概念和目的 什么是串行化对象的寿命通常随着生成该对象的程序的终 止而终止。有时候,可能需要...
public class A { private int aa; private int bb; // set/get、构造方法略 } public class B implements Serializable { private static final long serialVersionUID = 1L; private int account; private transient A a; // set/get、构造方法略 private void writeObject(java.io.ObjectOutputStream out) ...
javadoc中对这两个类的描述中对java的序列化机制进行了详细的描述: 引用 The default serialization mechanism for an object wrhttp://ites the class of the object, the class signature, and the valuhttp://es of all non-transient and non-static fields. References to other objects (except in transie...
对象序列化机制(object serialization)是java语言内建的一种对象持久化方式,通过对象序列化,可以将对象的状态信息保存未字节数组,并且可以在有需要的时候将这个字节数组通过反序列化的方式转换成对象,对象的序列化可以很容易的在JVM中的活动对象和字节数组(流)之间进行转换。
javadoc中对这两个类的描述中对java的序列化机制进行了详细的描述: 引用 The default serialization mechanism for an object writes the class of the object, the class signature, and the values of all non-transient and non-static fields. References to other objects (except in transient or static fiel...
The Java transient keyword is used on class attributes/variables to indicate that serialization process of such class should ignore such variables while creating a persistent byte stream for any instance of that class. A transient variable is a variable that can not be serialized. According to Java...
对象序列化机制(object serialization)是java语言内建的一种对象持久化方式,通过对象序列化,可以将对象的状态信息保存未字节数组,并且可以在有需要的时候将这个字节数组通过反序列化的方式转换成对象,对象的序列化可以很容易的在JVM中的活动对象和字节数组(流)之间进行转换。
Before we talk about Java transient variables, you need to know the concept of “serialization”. Serialization makes an object’s state persistent. Basically, it means that the state of the object is converted into a stream of bytes and stored in a file. A programmer can also use deserializ...