ObjectInputStream에서 모든 객체를 순환해서 읽는 방법

6964 단어 java-개체 흐름
package test816;

import java.io.EOFException;
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;


public class OutputStreamTest {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        String path = "d.txt";

        ObjectInputStream ois = null;
        ObjectOutputStream oos = null;

        try {
            oos = new ObjectOutputStream(new FileOutputStream(path));

            Person p1 = new Person(" ", 12, true);
            Person p2 = new Person(" ", 33, false);
            oos.writeObject(p1);
            oos.writeObject(p2);

            ***oos.writeObject(null);***
            // null  , EOFException , try catch     ( )
            oos.flush();
            System.out.println(" ");


            ois = new ObjectInputStream(new FileInputStream(path));
            Object object = ois.readObject();
            while( object !=null){
                System.out.println(object.toString());
                object = ois.readObject();
            }

        }
//      catch(EOFException e){
//          System.out.println("end");
//      }
        catch (FileNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (ClassNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }finally{
            if(oos!= null){
            try {
                oos.close();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            }
            if(ois!= null){
                try {
                    ois.close();
                } catch (IOException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                }
            }
        }


    }

}

class Person implements Serializable{
    private String name ;
    private int age;
    private boolean sex;

    private void Perosn() {
        // TODO Auto-generated method stub

    }

    public Person(String name, int age, boolean sex) {
        super();
        this.name = name;
        this.age = age;
        this.sex = sex;
    }

    public String getName() {
        return name;
    }

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

    public int getAge() {
        return age;
    }

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

    public boolean isSex() {
        return sex;
    }

    public void setSex(boolean sex) {
        this.sex = sex;
    }

    @Override
    public String toString() {
        return "Person [name=" + name + ", age=" + age + ", sex=" + (sex?" ":" ") + "]";
    }

}

사용하는 클래스를 서열화하는 것을 기억하십시오. 즉, Serializable 인터페이스를 실현하는 것입니다. 이 인터페이스는java에 속합니다.io 패키지

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