Java 序列化

import java.io.*;

/**
 * Java 序列化
 * Java 提供了一种对象序列化的机制，该机制中，一个对象可以被表示为一个字节序列，该字节序列包括该对象的数据、有关对象的类型的信息和存储在对象中数据的类型。
 *
 * 将序列化对象写入文件之后，可以从文件中读取出来，并且对它进行反序列化，也就是说，对象的类型信息、对象的数据，还有对象中的数据类型可以用来在内存中新建对象。
 */
public class Obj6 {
    public static void main(String[] args) {
        Employe e = new Employe();
        e.name = "Reyan Ali";
        e.address = "Phokka Kuan, Ambehta Peer";
        e.SSN = 11122333;
        e.number = 101;
        try{
            FileOutputStream fileOut = new FileOutputStream("/tmp/employee.ser");
            ObjectOutputStream out = new ObjectOutputStream(fileOut);
            out.writeObject(e);
            out.close();
            fileOut.close();
            System.out.println("Serialized data is saved in /tmp/employee.ser");
        }catch (IOException i)
        {
            i.printStackTrace();
        }

        Employe e_ = null;
        try
        {
            FileInputStream fileIn = new FileInputStream("/tmp/employee.ser");
            ObjectInput in = new ObjectInputStream(fileIn);
            e_ = (Employe) in.readObject();
            in.close();
            fileIn.close();
        }catch(IOException i)
        {
            i.printStackTrace();
            return;
        }catch(ClassNotFoundException c)
        {
            System.out.println("Employee class not found");
            c.printStackTrace();
            return;
        }
        System.out.println("Deserialized Employee...");
        System.out.println("Name: " + e_.name);
        System.out.println("Address: " + e_.address);
        System.out.println("SSN: " + e_.SSN);
        System.out.println("Number: " + e_.number);

    }
}