序列化、压缩、解压缩、反序列化对象
using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.IO.Compression;
using System.Xml.Serialization;
using System.Xml;
using System.Data;
using System.Runtime.Serialization.Formatters.Binary;
using System.Runtime.Serialization;
namespace JTK.IOHelper
{
public class SerializerDeserialize
{
public static byte [] Serializer(object obj)
{
IFormatter formatter = new BinaryFormatter();//定义BinaryFormatter以序列化object对象
MemoryStream ms = new MemoryStream();//创建内存流对象
formatter.Serialize(ms, obj);//把object对象序列化到内存流
byte[] buffer = ms.ToArray();//把内存流对象写入字节数组
ms.Close();//关闭内存流对象
ms.Dispose();//释放资源
MemoryStream msNew = new MemoryStream();
GZipStream gzipStream = new GZipStream(msNew, CompressionMode.Compress, true);//创建压缩对象
gzipStream.Write(buffer, 0, buffer.Length);//把压缩后的数据写入文件
gzipStream.Close();//关闭压缩流,这里要注意：一定要关闭，要不然解压缩的时候会出现小于4K的文件读取不到数据，大于4K的文件读取不完整
gzipStream.Dispose();//释放对象
msNew.Close();
msNew.Dispose();
return msNew.ToArray();
}
/// <summary>
/// 反序列化压缩的object
/// </summary>
/// <param name="_filePath"></param>
/// <returns></returns>
public static object Deserialize(byte[] bytes)
{
MemoryStream msNew = new MemoryStream(bytes);
msNew.Position = 0;
GZipStream gzipStream = new GZipStream(msNew, CompressionMode.Decompress);//创建解压对象
byte[] buffer = new byte[4096];//定义数据缓冲
int offset = 0;//定义读取位置
MemoryStream ms = new MemoryStream();//定义内存流
while ((offset = gzipStream.Read(buffer, 0, buffer.Length)) != 0)
{
ms.Write(buffer, 0, offset);//解压后的数据写入内存流
}
BinaryFormatter sfFormatter = new BinaryFormatter();//定义BinaryFormatter以反序列化object对象
ms.Position = 0;//设置内存流的位置
object obj;
try
{
obj = (object)sfFormatter.Deserialize(ms);//反序列化
}
catch
{
throw;
}
finally
{
ms.Close();//关闭内存流
ms.Dispose();//释放资源
}
gzipStream.Close();//关闭解压缩流
gzipStream.Dispose();//释放资源
msNew.Close();
msNew.Dispose();
return obj;
}
}
}