Java对象序列化(Serialization)是指将Java中的对象转为字节流,从而可以方便的存储或在网络中传输,反序列化(Deserialization)是指将字节流转位Java对象 一般情况下,Java Object Serialization指的是利用JDK自带的功能对对象进行序列化/反序列化,而不是使用其他的序列化库进行(反)序列化 JDK 序列化中,要求对象必须实现...
步骤三:序列化操作 importjava.io.FileOutputStream;importjava.io.ObjectOutputStream;publicclassSerializationDemo{publicstaticvoidmain(String[]args){Childchild=newChild();try{FileOutputStreamfileOut=newFileOutputStream("child.ser");ObjectOutputStreamout=newObjectOutputStream(fileOut);out.writeObject(child);...
serialVersionUID, then the serialization runtime will calculate a default serialVersionUID value for that class based on various aspects of the class, as described in the Java(TM) Object Serialization Specification. However, it isstrongly recommendedthat all serializable classes explicitly declare serial...
* If a serializable class does not explicitly declare a serialVersionUID, then * the serialization runtime will calculate a default serialVersionUID value * for that class based on various aspects of the class, as described in the * Java(TM) Object Serialization Specification. However, it is ...
importjava.io.*;publicclassSerializationDemo{publicstaticvoidserializePerson(Person person,String filename)throws IOException{try(ObjectOutputStream out=newObjectOutputStream(newFileOutputStream(filename))){out.writeObject(person);}}publicstaticPersondeserializePerson(String filename)throws IOException,ClassNotFo...
http://java.sun.com/javase/6/docs/platform/serialization/spec/class.html#4100 其他相关问题: hibernate的持久化,这个一般指的是将数据持久化到数据库,和序列化并没有直接关系。 Hibernate的POJO也并不要求必须实现Serializable接口,但是,作为系统扩展考虑,应该把PO都实现Serializable接口,因为如果这些对象需要缓存到...
then the serialization runtime will calculate a default serialVersionUID value for that class based on various aspects of the class, as described in the Java(TM) Object Serialization Specification. 如果用户没有自己声明一个serialVersionUID,接口会默认生成一个serialVersionUID ...
If a serializable class does not explicitly declare a serialVersionUID, then the serialization runtime will calculate a default serialVersionUID value for that class based on various aspects of the class, as described in the Java(TM) Object Serialization Specification. ...
当实现java.io.Serializable接口的实体(类)没有显式地定义一个名为serialVersionUID,类型为long的变 量时,Java序列化机制会根据编译的class自动生成一个serialVersionUID作序列化版本比较用,这种情况下,只有同一次编译生成的 class才会生成相同的serialVersionUID 。 如果我们不希望通过编译来强制划分软件版本,即实现序列...
公司有个子服务较多,交互频繁的系统,有一些需要共享传输的对象,它们通过 JDK 序列化(Java Object Serialization)后进行交互;但是由于一些不可描述的历史原因,这些对象存在多个版本,每个版本中的属性不一致,且未设置serialVersionUID。 这阵子在做梳理/统一代码的工作,打算统一这些对象的版本和固定serialVersionUID,但是由于...