对象操作流ObjectInputStream

最新推荐文章于 2025-10-29 08:28:17 发布

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本文演示了如何使用Java的ObjectInputStream进行对象的反序列化，从文件中读取并还原Person对象，展示了基本的读取流程及异常处理。

对象操作流ObjectInputStream

读取：new ObjectInputStream(InputStream)，readObject()

  public static void main(String[] args) throws IOException, ClassNotFoundException {
  	ObjectInputStream ois = new ObjectInputStream(new FileInputStream("e.txt"));
  	Person p1 = (Person) ois.readObject();
  	Person p2 = (Person) ois.readObject();
  	System.out.println(p1);
  	System.out.println(p2);
  	ois.close();
  }

package com.heima.otherio;

import java.io.FileInputStream;
import java.io.IOException;
import java.io.ObjectInputStream;

import com.heima.bean.Person;

public class Demo05_ObjectInputStream {

	/**
	 * @param args
	 * @throws IOException
	 * @throws ClassNotFoundException
	 * ObjectInputStream
	 * 对象输入流是反序列化
	 * 反序列化:将对象读出到内存中
	 */
	public static void main(String[] args) throws IOException,
			ClassNotFoundException {
		ObjectInputStream ois = new ObjectInputStream(new FileInputStream("e.txt"));
		Person p1 = (Person) ois.readObject();
		Person p2 = (Person) ois.readObject();
		//当文件读取到了末尾时出现EOFException(end of file)
		//Person p3 = (Person) ois.readObject(); 
		System.out.println(p1);
		System.out.println(p2);
		ois.close();
	}
}