Java对象序列化输入输出

在网上看到一篇有关于对象序列化的代码，自己仿着写了把

在Java中，entity通过implements Serializable，然后使用ObjectInputStream和ObjectOutputStream把象序列化输入输出

package com.formain.lyy.service.util.serializable;

import java.io.Serializable;
import java.util.Date;

@SuppressWarnings("serial")
public class PeoperEntity implements Serializable{

    private String name;    //姓名
    private Integer age;    //年龄
    private String gender;    //性别
    private Date birthday;    //出生年月日

    @Override
    public String toString() {
        return "PeoperEntity [name=" + name + ", age=" + age + ", gender="
                + gender + ", birthday=" + birthday + "]";
    }

    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public Integer getAge() {
        return age;
    }
    public void setAge(Integer age) {
        this.age = age;
    }
    public String getGender() {
        return gender;
    }
    public void setGender(String gender) {
        this.gender = gender;
    }
    public Date getBirthday() {
        return birthday;
    }
    public void setBirthday(Date birthday) {
        this.birthday = birthday;
    }
}

public static void main(String[] args) {
        String filename = "peoperEntity.ser";

        PeoperEntity peoperEntity = new PeoperEntity();
        peoperEntity.setAge(50);
        peoperEntity.setGender("男");
        peoperEntity.setName("张三");

        ArrayList<PeoperEntity> arrayList = new ArrayList<PeoperEntity>();
        arrayList.add(peoperEntity);
        try {
            SerializableUtils.serializable(arrayList, filename);
        } catch (Exception e) {
            e.printStackTrace();
        }
        System.out.println("peoperEntity :\t"+peoperEntity.toString());

        ArrayList<PeoperEntity> peNew = null;
        try {
            peNew = (ArrayList<PeoperEntity>)SerializableUtils.getSerialzable(filename);
        } catch (Exception e) {
            e.printStackTrace();
        }

        System.out.println(peNew);
    }

package com.formain.lyy.service.util.serializable;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

public class SerializableUtils {

    /**
     * 根据文件名序列化对象并返回
     * @param filename
     * @return Object | null
     * @throws Exception
     */
    public static Object getSerialzable(String filename)throws Exception{
        //创建文件输入流
        FileInputStream fileInputStream = new FileInputStream(new File(filename));

        //根据文件输入流获取一个对象输入流
        ObjectInputStream objInputStream = new ObjectInputStream(fileInputStream);
        //获得对象并返回
        Object obj = objInputStream.readObject();
        return obj;
    }

    /**
     * 序列化对象
     * @param seriObj
     * @param filename
     * @return
     * @throws Exception
     */
    public static void serializable(Object seriObj, String filename)throws Exception{

        //创建文件输出流
        FileOutputStream fileOutputStream = new FileOutputStream(new File(filename));

        //对象输出流对象
        ObjectOutputStream objOutputStream = new ObjectOutputStream(fileOutputStream);
        //输出
        objOutputStream.writeObject(seriObj);
        objOutputStream.close();

        fileOutputStream.close();
    }
}