java泛型方法,序列化与反序列化

import java.io.*;

public class GenericMethodTest {

    public static void main(String[] args) {
        Student stu=new Student();
        stu.name="雷锋";
        stu.age=100;
        String fileName="e:/a.dat";
        try {
            toFile(stu,fileName);
        } catch (IOException e) {
            e.printStackTrace();
        }
        
        
        
        try {
            Student stu_1=fromFile(fileName);
            System.out.println(stu_1);
        } catch (IOException e) {
            e.printStackTrace();
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }
    }
    
    private static <T> void toFile(T t,String fileName) throws IOException{
        FileOutputStream fos=new FileOutputStream(fileName);
        ObjectOutputStream oos=new ObjectOutputStream(fos);
        oos.writeObject(t);
        oos.flush();
        oos.close();
    }
    
    private static <T> T fromFile(String fileName) throws IOException, ClassNotFoundException{
        FileInputStream fis=new FileInputStream(fileName);
        ObjectInputStream oid=new ObjectInputStream(fis);
        @SuppressWarnings("unchecked")
        T t=(T)oid.readObject();
        return t;
    }
}


import java.io.Serializable;

@SuppressWarnings("serial")
public class Student implements Serializable {
    public String name;
    public int age;
    @Override
    public String toString(){
        return name+" : "+age;
    }
}