IO序列号AC

Person

 1 package MyTest;
 2
 3 import java.io.Serializable;
 4
 5 public class Person implements Serializable {
 6     /**
 7      *
 8      */
 9     private static final long serialVersionUID = 1L;
10     private String name;
11     private int age;
12
13     public Person(String name, int age) {
14         super();
15         this.name = name;
16         this.age = age;
17     }
18
19     @Override
20     public String toString() {
21         return name + "\t" + age;
22     }
23 }

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FileOutputStream

 1 package MyTest;
 2
 3 import java.io.File;
 4 import java.io.FileOutputStream;
 5 import java.io.ObjectOutputStream;
 6
 7
 8 public class Out {
 9     public static void main(String[] args) throws Exception{
10         File file = new File("1.txt");
11         FileOutputStream fos = new FileOutputStream(file,true);
12         ObjectOutputStream oos = new ObjectOutputStream(fos);
13         oos.writeObject(new Person("qwe",18));
14         oos.writeObject(new Person("abc",20));
15         oos.close();
16     }
17 }

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ObjectInputStream

 1 package MyTest;
 2
 3 import java.io.File;
 4 import java.io.FileInputStream;
 5 import java.io.ObjectInputStream;
 6
 7 public class In {
 8     public static void main(String[] args) throws Exception {
 9         File file = new File("1.txt");
10         FileInputStream fis = new FileInputStream(file);
11         ObjectInputStream ois = new ObjectInputStream(fis);
12         while(fis.available()>0) {
13             System.out.println(ois.readObject());
14         }
15         ois.close();
16     }
17 }

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没有true追加进txt信息之前