【java】对象序列化Serializable、transient

package 对象序列化;

import java.io.Serializable;

@SuppressWarnings("serial")
class A implements Serializable{
    
}
public class TestSerializable {
    public static void main(String[] args) {
        
    }
}

 对象序列化：java.io.ObjectOutputStream

对象反序列化：java.io.ObjectInputStream

package 对象序列化;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;

@SuppressWarnings("serial")
class A implements Serializable{
    private String name;
    private transient int age;//transient修饰的成员不能被序列化
    public A(String name,int age){
        this.name=name;
        this.age=age;
    }
    @Override
    public String toString() {
        return "name="+name+",age="+age;
    }
}
public class TestSerializable {
    public static void main(String[] args) throws FileNotFoundException, IOException, ClassNotFoundException {
        ObjectOutputStream oos=new ObjectOutputStream(new FileOutputStream(new File("D:"+File.separator+"A.ser")));
        oos.writeObject(new A("张三",23));
        oos.close();
        
        ObjectInputStream ois=new ObjectInputStream(new FileInputStream(new File("D:"+File.separator+"A.ser")));
        A a=(A)ois.readObject();
        ois.close();
        System.out.println(a);
    }
}