C#对象序列化与反序列化-优快云博客

对象序列化与反序列化优点：数据安全，保存读取简单快捷，应用很广。

小示例：序列化保存对象与反序列化读取对象

1.先定义一个学生对象，代码如下：

    [Serializable]//可序列化标识
    class Student
    {
        public string Name { get; set; }
        public int Age { get; set; }
        public string BirthDay { get; set; }
        public string Sex { get; set; }
    }

2.新建窗体，后台代码中定义两个方法分别用来保存、读取

        /// <summary>
        /// 保存学生信息
        /// </summary>
        /// <param name="objStudent"></param>
        private void SaveStudent(Student objStudent)
        {
            FileStream fs = new FileStream("Student.obj", FileMode.Create);
            BinaryFormatter bf = new BinaryFormatter();
            bf.Serialize(fs, objStudent);
            fs.Close();
        }
        /// <summary>
        /// 读取学生信息
        /// </summary>
        /// <returns></returns>
        private Student ReadStudent()
        {
            FileStream fs = new FileStream("Student.obj",FileMode.Open);
            BinaryFormatter bs = new BinaryFormatter();
            Student objStudent = (Student)bs.Deserialize(fs);
            fs.Close();
            return objStudent;
        }

3.在按钮的事件中，分别调用上一步定义的方法：

        private void btnSave_Click(object sender, EventArgs e)
        {
            Student s = new Student {
            Name = "李超",
            Age = 18,
            BirthDay = "1998-02-02",
            Sex = "男"
            };

            SaveStudent(s);

            MessageBox.Show("保存成功");
        }

        private void btnRead_Click(object sender, EventArgs e)
        {
            Student objStudent = ReadStudent();
            string strStudent = "姓名:"+ objStudent.Name + Environment.NewLine;
            strStudent += "性别:" + objStudent.Sex + Environment.NewLine;
            strStudent += "年龄:" + objStudent.Age + Environment.NewLine;
            strStudent += "生日:" + objStudent.BirthDay + Environment.NewLine;

            MessageBox.Show(strStudent);
        }