序列化是將一個對象轉換成字節流以達到將其長期保存在內存、數據庫或文件中的處理過程。它的主要目的是保存對象的狀態以便以後需要的時候使用。與其相反的過程叫做反序列化。
序列化一個對象
爲了序列化一個對象,我們需要一個被序列化的對象,一個容納被序列化了的對象的(字節)流和一個格式化器。進行序列化之前我們先看看System.Runtime.Serialization名字空間。ISerializable接口允許我們使任何類成爲可序列化的類。
如果我們給自己寫的類標識[Serializable]特性,我們就能將這些類序列化。除非類的成員標記了[NonSerializable],序列化會將類中的所有成員都序列化。
序列化的類型
二進制(流)序列化
SOAP序列化(使用IXmlSerializable)
XML序列化
通常大部分都是使用的XML序列化,所以介紹一下使用XML序列化.
Student類
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace XmlSerializers
{
[Serializable]
public class Student
{
private string name;
public string Name
{
get { return name; }
set { name = value; }
}
private int age;
public int Age
{
get { return age; }
set { age = value; }
}
private string hoddy;
public string Hoddy
{
get { return hoddy; }
set { hoddy = value; }
}
public Student()
{
}
public Student(string name,int age,string hoddy)
{
this.Name = name;
this.Age = age;
this.Hoddy = hoddy;
}
public void SayHi()
{
string mess = string.Format("我是{0},年齡有{1},愛好是{2}", Name, Age, Hoddy);
Console.WriteLine(mess);
}
}
}
Program
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Xml.Serialization;
using System.Xml;
namespace XmlSerializers
{
[Serializable]
class Program
{
static List<Student> students = new List<Student>();
static void Main(string[] args)
{
//添加學生
InitStudent();
//序列化
Serialize();
//反序列化
Deserialize();
Console.ReadLine();
}
public static void InitStudent()
{
Student scoficedld = new Student("scofield", 28, "哈哈");
Student su = new Student("程沐喆", 34, "寫博客");
Student zhang = new Student("張婧", 21, "唱歌");
Student huang = new Student("黃飛鴻", 25, "打架");
Student ding = new Student("丁俊暉", 30, "打斯諾克");
Student sullivan = new Student("OSullivan", 33, "打147");
Student Jay = new Student("周杰", 21, "耍雙節棍");
students.Add(scoficedld);
students.Add(su);
students.Add(zhang);
students.Add(huang);
students.Add(ding);
students.Add(sullivan);
students.Add(Jay);
}
public static void Serialize()
{
FileStream fs = new FileStream("Serialize.xml", FileMode.Create);
XmlSerializer xs = new XmlSerializer(typeof(List<Student>));
xs.Serialize(fs, students);
fs.Close();
}
public static void Deserialize()
{
FileStream fs = new FileStream("Serialize.xml", FileMode.Open);
XmlSerializer xs = new XmlSerializer(typeof(List<Student>));
List<Student> lists = xs.Deserialize(fs) as List<Student>;
if (lists != null)
{
for (int i = 0; i < lists.Count; i++)
{
lists[i].SayHi();
}
}
fs.Close();
}
}
}