玩轉C#之【序列化、反序列化】

介紹

使用方式

測試資料

SerializableAttribute 微軟說明文件

[Serializable]//必須加上的序列化特性

public class Person

{

	[NonSerialized]

	public int Id = 1;



	public string Name { get; set; }



	public string Sex { get; set; }

}



[Serializable]//必須加上的序列化特性

public class Programmer : Person

{

	private string Language { get; set; }

	public string Description { get; set; }

}



public class DataFactory 

{

	public static List<Programmer> BuildProgrammerList()

	{

		List<Programmer> list = new List<Programmer>();

		list.Add(new Programmer() 

		{ Id = 1, Description = "一年級學生", Name = "大俠愛吃漢堡寶", Sex = "男" 

		});

		return list;

	}	

}

二進位序列化

雖然這裡介紹BinaryFormatter但在 .NET 7中已經屬於過時的方法了

BinaryFormatter 序列化方法在 ASP.NET 應用程式中已過時且禁止

void Main()

{

	BinarySerialize();

}

public static void BinarySerialize()

{

	//使用二進位序列化

	string fileName = Path.Combine("C:\\Users\\TX\\", @"BinarySerialize.txt");//文件

	//需要一个stream，直接寫入檔案

	using (Stream fStream = new FileStream(fileName, FileMode.Create, FileAccess.ReadWrite))

	{

		List<Programmer> pList = DataFactory.BuildProgrammerList();//測試資料

		BinaryFormatter binFormat = new BinaryFormatter();//二進位序列化器

		binFormat.Serialize(fStream, pList);//序列化

	}

	//使用二進位反序列化

	using (Stream fStream = new FileStream(fileName, FileMode.Open, FileAccess.ReadWrite))

	{

		BinaryFormatter binFormat = new BinaryFormatter();//二進位序列化器											  /

		fStream.Position = 0;//重置流位置

		List<Programmer> pList = (List<Programmer>)binFormat.Deserialize(fStream);//反序列化

		pList.Dump();

	}

}

SOAP 序列化

雖然這裡介紹SoapFormatter但在 .NET Framework 2.0 開始，這個類別已過時。

public static void SoapSerialize()

{

    

	string fileName = Path.Combine("C:\\Users\\TX\\", @"SoapSerialize.txt");

    //序列化

	using (Stream fStream = new FileStream(fileName, FileMode.Create, FileAccess.ReadWrite))

	{

		List<Programmer> pList = DataFactory.BuildProgrammerList();

		SoapFormatter soapFormat = new SoapFormatter();

													   

		soapFormat.Serialize(fStream, pList.ToArray());//序列化

	}

    //反序列化

	using (Stream fStream = new FileStream(fileName, FileMode.Open, FileAccess.ReadWrite))

	{

		SoapFormatter soapFormat = new SoapFormatter();

													   

		fStream.Position = 0;//重置流位置

		List<Programmer> pList = ((Programmer[])soapFormat.Deserialize(fStream)).ToList();//反序列化

	}

}

XML

XmlSerializer 類別

/// <summary>

/// XML序列化器

/// </summary>

public static void XmlSerialize()

{

	//使用XML序列化

	string fileName = Path.Combine("C:\\Users\\TX\\", @"XmlSerialize.txt");//文件

	using (Stream fStream = new FileStream(fileName, FileMode.Create, FileAccess.ReadWrite))

	{

		List<Programmer> pList = DataFactory.BuildProgrammerList();

		XmlSerializer xmlFormat = new XmlSerializer(typeof(List<Programmer>));//

		xmlFormat.Serialize(fStream, pList);

	}

	using (Stream fStream = new FileStream(fileName, FileMode.Open, FileAccess.ReadWrite))

	{

		XmlSerializer xmlFormat = new XmlSerializer(typeof(List<Programmer>));

																			  

		fStream.Position = 0;//重置流位置

		List<Programmer> pList = pList = (List<Programmer>)xmlFormat.Deserialize(fStream);

	}

}

JSON

C#3.0開始導入的JsonSerializer JsonSerializer

var data = DataFactory.BuildProgrammerList();

	//序列化

	var json  = JsonSerializer.Serialize<List<Programmer>>(data);

	//反序列化

	var desData = JsonSerializer.Deserialize<List<Programmer>>(json);

參考資料