c#将对象序列化为字符串和将字符串反序列化为对象

asp.net开发中，页面间传值最长用到的是url显式传参，session，application和cookie传值等。对于复杂对象页面传值，如果不考虑性能影响的话，通常可以使用session或者application。那么页面间如何通过url传递复杂对象呢？正像标题说的那样，对象 -->字符串，然后在目标页面再将从url参数得到的(字符串-->对象)。这个过程可以用下面的代码来实现：

using System;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
using System.IO;

/// <summary>
///SerializeUtilities 的摘要说明
/// </summary>
public class SerializeUtilities
{
public SerializeUtilities()
{
//
//TODO: 在此处添加构造函数逻辑
//
}

/// <summary>
/// 序列化 对象到字符串
/// </summary>
/// <param name="obj">泛型对象</param>
/// <returns>序列化后的字符串</returns>
public static string Serialize<T>(T obj)
{
try
{
IFormatter formatter = new BinaryFormatter();
MemoryStream stream = new MemoryStream();
formatter.Serialize(stream, obj);
stream.Position = 0;
byte[] buffer = new byte[stream.Length];
stream.Read(buffer, 0, buffer.Length);
stream.Flush();
stream.Close();
return Convert.ToBase64String(buffer);
}
catch (Exception ex)
{
throw new Exception("序列化失败,原因:" + ex.Message);
}
}

/// <summary>
/// 反序列化 字符串到对象
/// </summary>
/// <param name="obj">泛型对象</param>
/// <param name="str">要转换为对象的字符串</param>
/// <returns>反序列化出来的对象</returns>
public static T Desrialize<T>(T obj, string str)
{
try
{
obj = default(T);
IFormatter formatter = new BinaryFormatter();
byte[] buffer = Convert.FromBase64String(str);
MemoryStream stream = new MemoryStream(buffer);
obj = (T)formatter.Deserialize(stream);
stream.Flush();
stream.Close();
}
catch (Exception ex)
{
throw new Exception("反序列化失败,原因:" + ex.Message);
}
return obj;
}

}

demo页面的cs文件代码：

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;

public partial class _fan_xuliehua : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
//序列化
DataTable dt = new DataTable();
dt.Columns.Add("ID");
dt.Columns.Add("Name");
dt.Rows.Add(new object[] { 1, "first" });
dt.Rows.Add(new object[] { 2, "second" });
string result = SerializeUtilities.Serialize(dt);
Response.Write(result);

//反序列化
string mystr = result;
DataTable _resDT = new DataTable();

_resDT = (DataTable)SerializeUtilities.Desrialize(_resDT, mystr);

Response.Write("<br>反序列化结果<br>" + _resDT.Rows[0][0].ToString() + ":" +_resDT.Rows[0][1].ToString() + "<br>");
Response.Write(_resDT.Rows[1][0].ToString() + ":" + _resDT.Rows[1][1].ToString() + "<br>");

}
}

 

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转自wjbaiverson的专栏