序列化和序列话反 入门案例

1、序列化和反序列化分别是什么？

2、序列化和反序列化分别有什么意义？

3、序列化和反序列化怎么用？

1、序列化是将java对象转换成字节文件的过程；

反序列化是将字节文件转换成java对象的过程。

2、序列化是为了将内存中的文件永久保存；

序列化是为了将文件进行网络交换。

3、下面是一个 序列化和反序列化的案例

package main;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.ObjectInputStream;

import java.io.ObjectOutputStream;

//对象的序列化和反序列化 入门

public class Test {

public static void main(String[] args) throws IOException,

ClassNotFoundException {

// SerializePerson();

Person pe = DeserializePerson();

System.out.println("age is : " + pe.getAge());

System.out.println("name is : " + pe.getName());

System.out.println("sex is : " + pe.getSex());

}

public static void SerializePerson() throws IOException {

Person pe = new Person();

pe.setAge("22");

pe.setName("Ban");

pe.setSex("man");

FileOutputStream fos = new FileOutputStream("E:/test.txt");

ObjectOutputStream oos = new ObjectOutputStream(fos);

oos.writeObject(pe);

oos.close();

System.out.println("serialize successfully!!");

}

public static Person DeserializePerson() throws IOException,

ClassNotFoundException {

FileInputStream fis = new FileInputStream("E:/test.txt");

ObjectInputStream ois = new ObjectInputStream(fis);

Person pe = (Person) ois.readObject();

return pe;

}

}

附：实体类

package main;

import java.io.Serializable;

public class Person implements Serializable{

private static final long serialVersionUID = 1L;

private String name;

private String age;

private String sex;

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public String getAge() {

return age;

}

public void setAge(String age) {

this.age = age;

}

public String getSex() {

return sex;

}

public void setSex(String sex) {

this.sex = sex;

}

}

tips：实体类必须实现serializable接口 并且 写上 private static final long serivalVersionUID = 1L;

不然会报错 NoSerival.....的错