Java之序列化和反序列化

序列化的对象：

 package test_demo.SerializableOper;

 import java.io.Serializable;
 /*
 * 序列化对象需要实现序列号接口
 * */
 public class Book implements Serializable {
 //    指定序列化的jdk版本
 //    private static final long serialVersionUID =1L;
     String name;
     int price;

     public Book(String name, int price) {
         this.name = name;
         this.price = price;
     }

     public String toString() {
         return "name: " + name + ", price: " + price;
     }
 }

序列化和反序列化操作代码：

 package test_demo.SerializableOper;

 import java.io.*;

 /*
 * 序列化和反序列化举例
 * 序列化：把对象保存在硬盘的过程
 * 序列化的对象需要实现序列化接口
 * */
 public class SerializableOper {
     public static void main(String args[]) throws IOException, ClassNotFoundException {
         Book book = new Book("阿甘正传", 55);
         System.out.println(book);
         String filePath = "C:\\testdata\\s\\book.txt";

         // 序列化
         FileOutputStream fos = new FileOutputStream(filePath);
         ObjectOutputStream oos = new ObjectOutputStream(fos);
         oos.writeObject(book);
         oos.close();
         fos.close();

         // 反序列化
         FileInputStream fis = new FileInputStream(filePath);
         ObjectInputStream ois = new ObjectInputStream(fis);
         Book b = (Book) ois.readObject();
         System.out.println(b);

     }
 }

book对象序列化后保存在C:\testdata\s\book.txt中。