解决cookie 不能存中文的方案

cookie 不支持中文 

解决方案非常容易    只需将其UrlEncode 一下即可，读取的时候要UrlDecode   方便起见，来个CookieHelper 类来操作

 

using System;


[code]using System.Collections.Generic;

using System.Web;

using System.Web.UI;

namespace Sheb.Common

{

public class CookieHelper

{

/// <summary>

/// 增加一个cookie 记录

/// </summary>

/// <param name="cookie"></param>

public static void AddCookie(HttpCookie cookie)

    {

DateTime dtNow = System.DateTime.Now;

DateTime CookieExpries = cookie.Expires;

TimeSpan span=  CookieExpries - dtNow;

cookie.Value = HttpUtility.UrlEncode(cookie.Value);

if (span.TotalDays < 0)

{

cookie.Expires = dtNow.AddDays(1);

}

HttpContext.Current.Response.Cookies.Add(cookie);

}

/// <summary>

/// 判断是否有cookie

/// </summary>

/// <param name="cookieName"></param>

/// <returns></returns>

public static bool HasCookie(string cookieName)

    {

HttpCookie cookie = HttpContext.Current.Request.Cookies[cookieName];

if (cookie == null ||

(cookie.Expires < System.DateTime.Now) && cookie.Expires != System.DateTime.MinValue)

{

return false;

}

else

{

return true;

}

}

/// <summary>

/// 删除一个cookie

/// </summary>

/// <param name="cookieName"></param>

public static void DelCookie(string cookieName)

    {

if (HttpContext.Current.Request.Cookies[cookieName] != null)

{

    HttpCookie cookie = HttpContext.Current.Request.Cookies[cookieName];

cookie.Expires = System.DateTime.Now.AddDays(1);

    HttpContext.Current.Response.Cookies.Add(cookie);

}

}

/// <summary>

/// 获得cookie 的值

/// </summary>

/// <param name="cookieName"></param>

/// <returns></returns>

public static string GetCookieValue(string cookieName)

    {

if (HasCookie(cookieName))

{

return HttpUtility.UrlDecode(HttpContext.Current.Request.Cookies[cookieName].Value);

}

else

{

return "";

}

}

}

}

[/code]

.csharpcode, .csharpcode pre
{
font-size: small;
color: black;
font-family: consolas, "Courier New", courier, monospace;
background-color: #ffffff;
/*white-space: pre;*/
}
.csharpcode pre { margin: 0em; }
.csharpcode .rem { color: #008000; }
.csharpcode .kwrd { color: #0000ff; }
.csharpcode .str { color: #006080; }
.csharpcode .op { color: #0000c0; }
.csharpcode .preproc { color: #cc6633; }
.csharpcode .asp { background-color: #ffff00; }
.csharpcode .html { color: #800000; }
.csharpcode .attr { color: #ff0000; }
.csharpcode .alt
{
background-color: #f4f4f4;
width: 100%;
margin: 0em;
}
.csharpcode .lnum { color: #606060; }