Java序列化

序列化就是将对象的状态转化为保持或可传输的过程。与序列化相反的就是反序列化了，它将流转换为对象，在这两个过程结合起来，可以轻松的存储和传输数据。

序列化成一般的文件，将被序列化的对象Person：

package com.nuftont.testserializable;

import java.io.Serializable;

public class Person implements Serializable {

	private String name;
	private int age;

	public Person() {

	}

	public Person(String str, int i) {
		System.out.println("Inside Persion's Constructor!");
		name = str;
		age = i;
	}

	String getName() {
		return name;
	}

	int getAge() {
		return age;
	}

}

反序列化Person对象，将流转化为对象的过程：

package com.nuftont.testserializable;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

/**
 * Java的序列化以及反序列化
 * @author Yao
 *
 */
public class SerializToFlatFile {

	public static void main(String[] arg) {
		SerializToFlatFile stf = new SerializToFlatFile();

		stf.saveData();
		stf.restoreData();
	}

	public void saveData() {
		Person myPersion = new Person("Jag", 31);
		try {
			FileOutputStream fileOutputStream = new FileOutputStream(
					"H:\\Test\\myPerson.txt");
			ObjectOutputStream oos = new ObjectOutputStream(fileOutputStream);
			System.out.println("Person Name:" + myPersion.getName());
			System.out.println("Person Age:" + myPersion.getAge());

			oos.writeObject(myPersion);
			oos.flush();
			oos.close();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	public void restoreData() {
		try {
			FileInputStream fileInputStream = new FileInputStream(
					"H:\\Test\\myPerson.txt");

			ObjectInputStream ois = new ObjectInputStream(fileInputStream);

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

			System.out.println("\n-----------------------\n");
			System.out.println("Person Jag, Age: 31");
			System.out.println("Name:" + mRestorePerson.getName());
			System.out.println("Age:" + mRestorePerson.getAge());
		} catch (Exception e) {
			// TODO: handle exception
			e.printStackTrace();
		}
	}

}

在H:\Test文件夹下产生myPerson.txt的同时，也在控制台上输出如下信息：

输出结果

Inside Persion's Constructor!
Person Name:Jag
Person Age:31

-----------------------

Person Jag, Age: 31
Name:Jag
Age:31