向文件中存取对象,对象要实现序列化接口

packagecom.java.test;

importjava.io.BufferedInputStream;

importjava.io.BufferedOutputStream;

importjava.io.FileInputStream;

importjava.io.FileOutputStream;

importjava.io.IOException;

importjava.io.ObjectInputStream;

importjava.io.ObjectOutputStream;

publicclassTestObjectOutPutStream {

      /**

       * 向文件中写入一个对象,该对象在文件里是以二进制存放的.

       *@paramstudent

       */

      publicstaticvoidtestWriter(Studentstudent){

            try{

                  ObjectOutputStreamoos= new ObjectOutputStream( new BufferedOutputStream(newFileOutputStream("F://file.txt")));

                  oos.writeObject(student);

                  oos.flush();

                  oos.close();

                  

            }catch(IOExceptione) {

                  e.printStackTrace();

            }finally{

                  System.out.println("写入成功!");

            }

      }

      /**

       * 从文件中读取对象,并强制转换对象

       */

      publicstaticvoidtestReader(){

            

            try{

                  ObjectInputStreamois= new ObjectInputStream( new BufferedInputStream(newFileInputStream("F://file.txt")));

                  Studentstu= (Student)ois.readObject();

                  System.out.println(stu);

                  ois.close();

                  

            }catch(IOExceptione) {

                  //TODOAuto-generated catch block

                  e.printStackTrace();

            }catch(ClassNotFoundExceptione) {

                  //TODOAuto-generated catch block

                  e.printStackTrace();

            }finally{

                  System.out.println("读取成功!");

            }

      }

      

      

      publicstaticvoidmain(String[]args) {

            Studentstudent= new Student();

            student.setId(99);

            student.setName("maliao");

            student.setScore(899);

            

            testReader();

      }

      

}