.NET序列化

.net提供了三种序列化方式:

1.XML Serialize

2.Soap Serialize

3.Binary Serialize

第一种序列化方式对有些类型不能够序列化,如hashtable;我主要介绍后两种类型得序列化

一.Soap Serialize

使用SoapFormatter.Serialize()实现序列化.SoapFamatter在System.Runtime.Serialization.Formatters.Soap命名空间下,使用时需要引用System.Runtime.Serialization.Formatters.Soap.dll.它可将对象序列化成xml.

比如要序列化MyClass类

[Serializable]

class MyClass:ISerializable

{

protected string _name;
protected string _id;

protected Hashtable fieldtype=new Hashtable();

public MyClass():base(){}
public MyClass(SerializationInfo si, StreamingContext context):base(si,context){}

public string Name
{
get
{
return _name;
}
}

public string ID
{
get
{
return _id;
}
}

public Hashtable FieldTypeHash{
get{return this.fieldtype;}
}

public void Start()

{

.........

}

}

在这个类中,红色部分为必须有的.否则在序列化此类的时候会产生异常“必须被标注为可序列化“,“没有构造函数“等...

下面是序列化函数,将对象序列化后转化成string字符串输出

public string SoapSerializer(object o)
{
//FileStream fs = new FileStream("DataFile.xml", FileMode.Create);
Stream ms=new MemoryStream();
// Construct a SoapFormatter and use it to serialize the data to the stream.
SoapFormatter formatter = new SoapFormatter();
try
{
formatter.Serialize(ms, o);

byte[] b=new byte[ms.Length];
ms.Position=0;
ms.Read(b,0,b.Length);

string s=Convert.ToBase64String(b);
return s;
}
catch (SerializationException e)
{
Console.WriteLine("Failed to serialize. Reason: " + e.Message);
throw;
}
finally
{
ms.Close();
}

}

下面是反序列化函数,

public MyClass Deserialize(string returnString)
{

SoapFormatter formatter;
MemoryStream ms=null;
try
{
formatter = new SoapFormatter();

byte[] b=Convert.FromBase64String(returnString);

ms=new MemoryStream(b);

MyClass response = (MyClass ) formatter.Deserialize(ms);
return response;
}
catch (SerializationException e)
{
Console.WriteLine("Failed to deserialize. Reason: " + e.Message);
throw;
}
finally
{
ms.Close();

}

}

二.Binary Serialize和SoapSerialize类似,将SoapFormatter改成BinaryFormatter即可,但要使用System.Runtime.Serialization.Formatters.Binary命名空间.