C#序列化

1.序列化一般有2种（XML和2进制）,简单对象序列化

using System;

using System.IO;

using System.Runtime.Serialization.Formatters.Binary;

using System.Windows.Forms;

using System.Xml.Serialization;

namespace Test

{

    //对于XmlSerializer序列化，默认即使不使用特性Serializable，也是可以对对象进行序列化的，则BinaryFormatter不然一定要使用Serializable标记。

    public partial class Form1 : Form

    {

        //XmlSerializer是XML序列化

        XmlSerializer xs = new XmlSerializer(typeof(Student));

        //二进制序列化

        BinaryFormatter b = new BinaryFormatter();

        Student student = new Student() { Name = "小明", Age =  };

        public Form1()

        {

            InitializeComponent();

            //xml序列化

            using (Stream stream = new FileStream("d:\\Student.xml", FileMode.Create, FileAccess.Write, FileShare.Read))

            {

                xs.Serialize(stream, student);

            }

            //xml反序列化

            using (FileStream fs = new FileStream("d:\\Student.xml", FileMode.Open, FileAccess.Read))

            {

                Student student = (Student)xs.Deserialize(fs);

            }

            //二进制序序列化

            using (FileStream fileStream = new FileStream("d:\\Student.dat", FileMode.Create))

            {

                BinaryFormatter b = new BinaryFormatter();

                //序列化类要加[Serializable]特性

                b.Serialize(fileStream, student);

            }

            //二进制序反序列化

            using (FileStream fileStream = new FileStream("d:\\Student.dat", FileMode.Open, FileAccess.Read))

            {

                BinaryFormatter bf = new BinaryFormatter();

                student = (Student)bf.Deserialize(fileStream);

            }

        }

    }

}

[Serializable]

public class Student

{

    public string Name { get; set; }

    public int Age { get; set; }

}

2.复杂对象序列化

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.IO;

using System.Linq;

using System.Runtime.Serialization.Formatters.Binary;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

using System.Xml.Serialization;

namespace Test

{

    public partial class Form1 : Form

    {

        //XmlSerializer是XML序列化

        XmlSerializer xs = new XmlSerializer(typeof(TeacherStudent));

        //二进制序列化

        BinaryFormatter b = new BinaryFormatter();

        TeacherStudent teacherStudent = new TeacherStudent();

        Teacher teacher = new Teacher() { Name = "王老师", Age =  };

        Student student = new Student() { Name = "小明", Age =  };

        public Form1()

        {

            InitializeComponent();

            //xml序列化

            using (Stream stream = new FileStream("d:\\Student.xml", FileMode.Create, FileAccess.Write, FileShare.Read))

            {

                teacherStudent.Teacher = teacher;

                teacherStudent.Student = student;

                xs.Serialize(stream, teacherStudent);

            }

            //xml反序列化

            using (FileStream fs = new FileStream("d:\\Student.xml", FileMode.Open, FileAccess.Read))

            {

                teacherStudent = null;

                teacherStudent = (TeacherStudent)xs.Deserialize(fs);

            }

            //二进制序序列化

            using (FileStream fileStream = new FileStream("d:\\Student.dat", FileMode.Create))

            {

                BinaryFormatter b = new BinaryFormatter();

                b.Serialize(fileStream, teacher);

                b.Serialize(fileStream, student);

            }

            //二进制序反序列化

            using (FileStream fileStream = new FileStream("d:\\Student.dat", FileMode.Open, FileAccess.Read))

            {

                teacher = null;

                student = null;

                BinaryFormatter bf = new BinaryFormatter();

                teacher = (Teacher)bf.Deserialize(fileStream);

                student = (Student)bf.Deserialize(fileStream);

            }

        }

    }

}

[Serializable]

public class Student

{

    public string Name { get; set; }

    public int Age { get; set; }

}

[Serializable]

public class Teacher

{

    public string Name { get; set; }

    public int Age { get; set; }

}

[Serializable]

public class TeacherStudent

{

    public Teacher Teacher { get; set; }

    public Student Student { get; set; }

}

3. 控制序列化/反序列化前后的数据

using System;

using System.IO;

using System.Runtime.Serialization;

using System.Runtime.Serialization.Formatters.Binary;

using System.Windows.Forms;

namespace Test

{

    public partial class Form1 : Form

    {

        //XmlSerializer是XML序列化

        BinaryFormatter b = new BinaryFormatter();

        Student student = new Student() { Name = "小明", Age =  };

        public Form1()

        {

            InitializeComponent();

            //二进制序序列化

            using (FileStream fileStream = new FileStream("d:\\Student.dat", FileMode.Create))

            {

                BinaryFormatter b = new BinaryFormatter();

                b.Serialize(fileStream, student);

            }

            //二进制序反序列化

            using (FileStream fileStream = new FileStream("d:\\Student.dat", FileMode.Open, FileAccess.Read))

            {

                BinaryFormatter bf = new BinaryFormatter();

                student = (Student)bf.Deserialize(fileStream);

            }

        }

    }

}

[Serializable]

public class Student

{

    public string Name { get; set; }

    public int Age { get; set; }

    [OnSerializing()]

    internal void OnSerializingMethod(StreamingContext context)

    {

        //格式化器在序列化开始之前调用此方法。

        Console.WriteLine("OnSerializing格式化器在序列化开始之前调用此方法");

    }

    [OnSerialized()]

    internal void OnSerializedMethod(StreamingContext context)

    {

        //格式化器在序列化后调用此方法。

        Console.WriteLine("OnSerialized格式化器在序列化后调用此方法");

    }

    [OnDeserializing()]

    internal void OnDeserializingMethod(StreamingContext context)

    {

        //格式化器在反序列化开始之前调用此方法。

        Console.WriteLine("OnDeserializing格式化器在反序列化开始之前调用此方法");

    }

    [OnDeserialized()]

    internal void OnDeserializedMethod(StreamingContext context)

    {

        //格式化器在序列化开始之前调用此方法。

        Console.WriteLine("OnDeserialized格式化器在序列化开始之前调用此方法");

    }

}