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asp.net中对象的序列化,方便网络传输
对象序列化 是将对象状态转换为可保持或传输的格式的过程。
反序列化 是将流转换为对象
序列化和反序列化相结合
可以使对象数据轻松的存储和传递
在 .NET 中,如果是对象可序列化,需要在 声明对象的开始部分加上 [Serializable]
这个属性,并且不能被继承
如一个类
[Serializable]
public class
A
{
public string title;
}
public class B :
A
{
public int total;
}
则 对象B 不可被序列化
在
.NET 提供了3种序列化的方式 BinaryFormatter, SoapFormatter和 XmlSerializer
,下面对这3种方式分别以代码形式做介绍
预备工作:
创建一个 实体对象
[Serializable]
public class
Entity
{
private int _total;
private string _title;
private double
_timeCount;
private int
_pageCount;
public Entity()
{
}
public int
Total
{
get
{ return _total; }
set { _total =
value; }
}
public string
Title
{
get
{ return _title; }
set { _title =
value; }
}
public double
TimeCount
{
get { return _timeCount; }
set {
_timeCount = value; }
}
public
int PageCount
{
get { return _pageCount;
}
set { _pageCount = value;
}
}
}
1. BinaryFormatter
说明: 需要引入命名空间
System.Runtime.Serialization 和
System.Runtime.Serialization.Formatters.Binary
//序列化对象
Entity entity = new
Entity();
entity.Total =
10;
entity.Title =
"测试";
entity.TimeCount =
0.18;
entity.PageCount =
5;
IFormatter formatter = new
BinaryFormatter();
Stream stream =
new FileStream(@"D:\程序\DotNet技术\PDSource框架\Web\Serializer\myFile.txt",
FileMode.Create, FileAccess.Write,
FileShare.None);
formatter.Serialize(stream,
entity);
stream.Close();
//反序列化对象
IFormatter formatter1 =
new BinaryFormatter();
Stream
stream1 = new FileStream(@"D:\程序\DotNet技术\PDSource框架\Web\Serializer\myFile.txt",
FileMode.Open, FileAccess.Read,
FileShare.Read);
Entity entity1 =
(Entity)formatter1.Deserialize(stream1);
stream1.Close();
Response.Write(entity1.Total + "
" + entity1.Title + "
" +
entity1.TimeCount + "
" + entity1.PageCount);
2. SoapFormatter
说明:
需要引入命名空间 System.Runtime.Serialization 和
System.Runtime.Serialization.Formatters.Soap
//序列化对象
Entity entity = new
Entity();
entity.Total =
10;
entity.Title =
"测试";
entity.TimeCount =
0.18;
entity.PageCount =
5;
IFormatter formatter = new
SoapFormatter();
Stream stream =
new FileStream(@"D:\程序\DotNet技术\PDSource框架\Web\Serializer\myFile2.txt",
FileMode.Create, FileAccess.Write,
FileShare.None);
formatter.Serialize(stream,
entity);
stream.Close();
//反序列化对象
IFormatter formatter1 =
new SoapFormatter();
Stream
stream1 = new
FileStream(@"D:\程序\DotNet技术\PDSource框架\Web\Serializer\myFile2.txt",
FileMode.Open, FileAccess.Read,
FileShare.Read);
Entity entity1 =
(Entity)formatter1.Deserialize(stream1);
stream1.Close();
Response.Write(entity1.Total + "
" + entity1.Title + "
" +
entity1.TimeCount + "
" + entity1.PageCount);
3. XmlSerializer
说明:
需要引入命名空间
System.Xml.Serialization
//序列化对象
Entity entity = new
Entity();
entity.Total =
10;
entity.Title =
"测试";
entity.TimeCount =
0.18;
entity.PageCount =
5;
XmlSerializer formatter =
new XmlSerializer(typeof(Entity));
Stream stream = new
FileStream(@"D:\程序\DotNet技术\PDSource框架\Web\Serializer\myFile3.xml",
FileMode.Create, FileAccess.Write,
FileShare.None);
formatter.Serialize(stream,
entity);
stream.Close();
//反序列化对象
XmlSerializer formatter1
= new
XmlSerializer(typeof(Entity));
Stream stream1 = new
FileStream(@"D:\程序\DotNet技术\PDSource框架\Web\Serializer\myFile3.xml",
FileMode.Open, FileAccess.Read,
FileShare.Read);
stream1.Seek(0,
SeekOrigin.Begin);
Entity
entity1 =
(Entity)formatter1.Deserialize(stream1);
stream1.Close();
Response.Write(entity1.Total + "
" + entity1.Title + "
" +
entity1.TimeCount + "
" + entity1.PageCount);
asp.net中对象的序列化,方便网络传输