5-3作业

package com.imooc.serial;

import java.io.FileInputStream;

import java.io.FileNotFoundException;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.ObjectInputStream;

import java.io.ObjectOutputStream;

public class ProductTest {

public static void main(String[] args) {

// 创建对象

Product iphone = new Product(123, "iphone", "telephone", 4888);

Product ipad = new Product(234, "ipad", "computer", 5088);

Product macbook = new Product(345, "macbook", "computer", 10688);

Product iwach = new Product(256, "iwatch", "watch", 4799);

FileOutputStream fos ;

ObjectOutputStream oos;

FileInputStream fis;

ObjectInputStream ois;

// 进入输出操作

try {

fos = new FileOutputStream("test.txt");

oos = new ObjectOutputStream(fos);

// 输入流操作

fis = new FileInputStream("test.txt");

ois = new ObjectInputStream(fis);

// 将对象写入文件

oos.writeObject(iphone);

oos.writeObject(ipad);

oos.writeObject(macbook);

oos.writeObject(iwach);

oos.flush();

// 进行读取文件

System.out.println("apple系列产品信息:");

Product test = null;

try {

while ((test = (Product) ois.readObject()) != null) {

System.out.println(test+"\n");

}

} catch (ClassNotFoundException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}finally {

ois.close();

oos.close();

fis.close();

fos.close();

}

} catch (FileNotFoundException e) {

// TODO Auto-generated catch block

e.printStackTrace();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}

最后正常输出，但是有异常

apple系列产品信息:

产品ID:123

产品名称:iphone

产品属性:telephone

产品价格:4888.0元

产品ID:234

产品名称:ipad

产品属性:computer

产品价格:5088.0元

产品ID:345

产品名称:macbook

产品属性:computer

产品价格:10688.0元

产品ID:256

产品名称:iwatch

产品属性:watch

产品价格:4799.0元

java.io.EOFException

at java.io.ObjectInputStream$BlockDataInputStream.peekByte(ObjectInputStream.java:3014)

at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1575)

at java.io.ObjectInputStream.readObject(ObjectInputStream.java:464)

at java.io.ObjectInputStream.readObject(ObjectInputStream.java:422)

at com.imooc.serial.ProductTest.main(ProductTest.java:39)

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