序列化活頁夾
繫結器使你有機會檢查應用程式域中正在載入的型別
建立一個繼承自 SerializationBinder 的類
class MyBinder : SerializationBinder
{
public override Type BindToType(string assemblyName, string typeName)
{
if (typeName.Equals("BinarySerializationExample.Item"))
return typeof(Item);
return null;
}
}
現在我們可以檢查載入的型別,並在此基礎上確定我們真正想要接收的內容
要使用活頁夾,必須將其新增到 BinaryFormatter。
object DeserializeData(byte[] bytes)
{
var binaryFormatter = new BinaryFormatter();
binaryFormatter.Binder = new MyBinder();
using (var memoryStream = new MemoryStream(bytes))
return binaryFormatter.Deserialize(memoryStream);
}
完整的解決方案
using System;
using System.IO;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
namespace BinarySerializationExample
{
class MyBinder : SerializationBinder
{
public override Type BindToType(string assemblyName, string typeName)
{
if (typeName.Equals("BinarySerializationExample.Item"))
return typeof(Item);
return null;
}
}
[Serializable]
public class Item
{
private string _name;
public string Name
{
get { return _name; }
set { _name = value; }
}
}
class Program
{
static void Main(string[] args)
{
var item = new Item
{
Name = "Orange"
};
var bytes = SerializeData(item);
var deserializedData = (Item)DeserializeData(bytes);
}
private static byte[] SerializeData(object obj)
{
var binaryFormatter = new BinaryFormatter();
using (var memoryStream = new MemoryStream())
{
binaryFormatter.Serialize(memoryStream, obj);
return memoryStream.ToArray();
}
}
private static object DeserializeData(byte[] bytes)
{
var binaryFormatter = new BinaryFormatter
{
Binder = new MyBinder()
};
using (var memoryStream = new MemoryStream(bytes))
return binaryFormatter.Deserialize(memoryStream);
}
}
}