//我将对象student序列化到hello.txt文件为什么 反序列化后student的name和age都成0了啊？？
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectOutputStream;
public class ObjectOutputStreamTest {
public static void main(String[] args) throws FileNotFoundException, IOException {
ObjectOutputStream oos=new ObjectOutputStream(new FileOutputStream("D:\\test\\hello.txt"));
Student s=new Student("安安",20);
oos.writeObject(s);
oos.close();
}
}
//反序列化
public static void main(String[] args) {
try {
//实例化对象输入流
ObjectInputStream ois=new ObjectInputStream(new FileInputStream("D:\\test\\hello.txt"));
try {
//反序列化对象
Student stu=(Student) ois.readObject();
System.out.println("学生姓名"+stu.getName());
System.out.println("学生年龄"+stu.getAge());
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
------解决方案--------------------
序列号类定义时：ObjectOutputStreamTest implements Serializable
------解决方案--------------------
- Java code
public class ObjectOutputStreamTest { public static void main(String[] args) throws FileNotFoundException, IOException { ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream( "hello.txt")); Student s = new Student("安安", 20); oos.writeObject(s); oos.flush(); oos.close(); // 反序列化 try { // 实例化对象输入流 ObjectInputStream ois = new ObjectInputStream(new FileInputStream( "hello.txt")); try { // 反序列化对象 Student stu = (Student) ois.readObject(); System.out.println("学生姓名:" + stu.getName()); System.out.println("学生年龄:" + stu.getAge()); } catch (ClassNotFoundException e) { e.printStackTrace(); } } catch (FileNotFoundException e){ e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } }}class Student implements Serializable{ private String name; private int age; public Student(String name,int age) { this.name = name; this.age = age; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } public String getName() { return name; } public void setName(String name) { this.name = name; } }