java序列化反序列化面试题

通过实现Serializable接口，Java对象可以进行序列化和反序列化。序列化将对象转换为字节流，以便于存储或传输，而反序列化则将字节流重新转换为原始对象。需要注意的是，序列化和反序列化的类必须具有相同的.class文件，否则会抛出ClassNotFoundException异常。

在进行对象反序列化时，需要提供Java对象所属类的.class文件。下面是一个示例代码：

package test05;
import java.io.*;
public class Main01 {
    public static void main(String[] args) throws IOException {
        // 创建ObjectInputStream对象、两个Student对象s1 s2
        ObjectInputStream objectInputStream = null;
        Student student1 = null;
        Student student2 = null;
        
        try {
            objectInputStream = new ObjectInputStream(new FileInputStream("D:/新建文本文档.txt"));
            student1 = (Student) objectInputStream.readObject();
            student2 = (Student) objectInputStream.readObject();
            System.out.println(student1);
            System.out.println(student2);
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        } finally {
            if (objectInputStream != null) {
                objectInputStream.close();
            }
        }
    }
}