知识点小记

1.反射获取对象

 

2.对象序列化与反序列化

package com.cj.test1;

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 TestSerializable {
    
    public static void main(String[] args) throws FileNotFoundException, IOException, ClassNotFoundException {
        User user = new User();
        user.setName("崔佳");
        user.setGender("男");
        user.setAge(27);
        
        ObjectOutputStream os = new ObjectOutputStream(new FileOutputStream("Temp"));
        os.writeObject(user);
        os.close();
        System.out.println("输出完成");
        
        ObjectInputStream is = new ObjectInputStream(new FileInputStream("Temp"));
        User user1 = (User) is.readObject();
        System.out.println(user1.getName()+"==="+user1.getGender()+"==="+user1.getAge());
    }
}