java序列化

Posted 2020-08-27 你还需要努力

/*
*java简单序列化
*/

public class Main{

public static void main(String[] args){

File file = new File("person.out");

try{
    ObjectOutputStream out = new ObjectOutputStream(new FileOutputStream(file));
    Person person = new Person("John",101,Gender.MALE);
    out.writeObject(person);
    out.close();
    System.out.println(Gender.MALE);
    ObjectInputStream oin = new ObjectInputStream(new FileInputStream(file));
    Object newPerson = oin.readObject();
    oin.close();
    System.out.println(newPerson);
}catch(Exception e){
    e.printStackTrace();
}


  }
}
enum  Gender{
    MALE,FEMALE
}
class Person implements Serializable{
    private String name=null;
    private Integer age=null;//transient默认序列化忽略该字段
    private Gender gender=null;
    public Person(){
        System.out.println("none-argconstructor");
    }

    public Person(String name,Integer age,Gender gender){
    System.out.println("argconstructor");
    this.name=name;
    this.age=age;
    this.gender=gender;
    
    }
    
@Override
public String toString(){
    return"["+name+","+age+","+gender+"]";
}

public String getName(){
    return name;
}

public void setName(String name){
    this.name=name;
}

public Integer getAge(){
    return age;
}

public void setAge(Integer age){
    this.age=age;
}

public Gender getGender(){
    return gender;
}

public void setGender(Gender gender){
    this.gender=gender;
}
}