ArrayList的二进制序列化及反序列化实现

using System; 
using System.Collections.Generic; 
using System.Collections; 
using System.Text; 
using System.Data; 
using System.Data.SqlClient; 
using System.IO; 
using System.Runtime.Serialization.Formatters.Binary; 

namespace ConsoleApplication5 
{ 
class Program 
{ 
private static BinaryFormatter Transfer = new BinaryFormatter(); 

static void Main(string[] args) 
{ 
Test test = new Test(10); 
ArrayList array = new ArrayList(); 
array.Add(test); 
byte[] buffer = ChangeObjectToByte(array); //序列化 
ArrayList array2 = new ArrayList(); 
array2 = (ArrayList)ChangeByteToObject(buffer); //反序列化为对象 
Test test2 = (Test)array2[0]; 
test2.PrintKey(); //应该会打印出"10",证明自己其实是第一个test那个对象 

Console.ReadLine(); 
} 

/// <summary> 
/// 反序列化 
/// </summary> 
/// <param name="buffer">二进制流</param> 
private static object ChangeByteToObject(byte[] buffer) 
{ 
try 
{ 
MemoryStream ms = new MemoryStream(buffer, 0, buffer.Length, true, true); 
//将流反序列化为对象 
object obj = Transfer.Deserialize(ms); 

return obj; 
} 
catch (Exception err) 
{ 
return null; 
} 
} 

/// <summary> 
/// 序列化 
/// </summary> 
/// <param name="msg">要序列化的对象</param> 
/// <returns>转化成的byte</returns> 
private static byte[] ChangeObjectToByte(object obj) 
{ 
MemoryStream ms = new MemoryStream(); 
//将对象序列化 
Transfer.Serialize(ms, obj); 
byte[] buffer = ms.GetBuffer(); 

return buffer; 
} 
} 

[Serializable] 
public class Test 
{ 
private int _key; 

public Test(int Key) 
{ 
this._key = Key; 
} 

public void PrintKey() 
{ 
Console.WriteLine(_key.ToString()); 
} 
} 
}