java序列化与反序列化操作实例分析

java序列化与反序列化操作实例分析

本文实例分析了java序列化与反序列化操作。分享给大家供大家参考，具体如下：

概述：

Java序列化是指把Java对象转换为字节序列的过程;而Java反序列化是指把字节序列恢复为Java对象的过程。

示例代码：

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.ObjectInputStream;

import java.io.ObjectOutputStream;

import java.io.Serializable;

import java.util.ArrayList;

import java.util.Date;

import java.util.HashMap;

import java.util.List;

public class Test {

/**

* @param args

*/

public static void main(String[] args) {

try {

ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream("D:/objectFile.obj"));

Customer customer = new Customer("中国人",23);

out.writeObject("你好!");

out.writeObject(new Date());

out.writeObject(customer);

out.writeInt(123);

List list = new ArrayList();

int i =0 ;

while(i<100) {

Customer customer2 = new Customer("中国人",i);

list.add(customer2);

i++;

}

HashMap hashMap = new HashMap();

hashMap.put("customer", list);

out.writeObject(hashMap);

out.close();

ObjectInputStream in = new ObjectInputStream(new FileInputStream("D:/objectFile.obj"));

System.out.println("obj1= " + (String) in.readObject());

System.out.println("obj2= " + (Date) in.readObject());

Customer obj3 = (Customer) in.readObject();

System.out.println("obj3= " + obj3);

int obj4 = in.readInt();

System.out.println("obj4= http://" + obj4);

Object obj5 = in.readObject();

System.out.println(obj5);

HashMap hash_map = (HashMap)obj5;

List l = (List) hash_map.get("customer");

System.out.println("size: " + l.size());

for(int ii=0; ii

Customer c = (Customer)l.get(ii);

System.out.println(c.getName());

System.out.println(c.getAge());

}

in.close();

} catch (FileNotFoundException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

http://} catch (ClassNotFoundException e) {

e.printStackTrace();

}

}

}

class Customer implements Serializable {

private static final long serialVersionUID = 1L;

private String name;

private int age;

public String getName() {

return name;

}

public int getAge() {

return age;

}

public Customer(String name, int age) {

this.name = name;

this.age = age;

}

public String toString() {

return "name=" + name + ", age=" + age;

}

}

希望本文所述对大家java程序设计有所帮助。

Customer c = (Customer)l.get(ii);

System.out.println(c.getName());

System.out.println(c.getAge());

}

in.close();

} catch (FileNotFoundException e) {

e.printStackTrace();

} catch (IOException e) {

e.printStackTrace();

http://} catch (ClassNotFoundException e) {

e.printStackTrace();

}

}

}

class Customer implements Serializable {

private static final long serialVersionUID = 1L;

private String name;

private int age;

public String getName() {

return name;

}

public int getAge() {

return age;

}

public Customer(String name, int age) {

this.name = name;

this.age = age;

}

public String toString() {

return "name=" + name + ", age=" + age;

}

}

希望本文所述对大家java程序设计有所帮助。

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