ASP.NET cookie类
要求写一个cookie类实现以下功能
1.保存用户名（有个checkbook是“记住用户名”）
2.用户的自动登录（有个checkbook是“自动登录”）
3.密码进行加密
很急，谢谢大家。 --------------------编程问答-------------------- 不客气。 --------------------编程问答-------------------- 我需要详细的代码哦，最好有点注释。 --------------------编程问答--------------------
using System;--------------------编程问答-------------------- 楼上不错。 --------------------编程问答-------------------- 不错。。。。。
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.IO;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Data;
using System.Configuration;
namespace Bll
{
/// <summary>
/// Cookie操作类
/// </summary>
public class CookieHelper
{
#region 保存Cookie
/// <summary>
/// 保存Cookie
/// </summary>
/// <param name="CookieName">Cookie名称</param>
/// <param name="CookieValue">Cookie值</param>
/// <param name="CookieTime">Cookie过期时间(小时),0为关闭页面失效</param>
public static void SaveCookie(string CookieName, object CookieValue, double CookieTime)
{
HttpCookie myCookie = new HttpCookie(CookieName);
DateTime now = DateTime.Now;
myCookie.Value = ConvertObjectToString(CookieValue);
if (CookieTime != 0)
myCookie.Expires = now.AddHours(CookieTime);
if (HttpContext.Current.Response.Cookies[CookieName] != null)
HttpContext.Current.Response.Cookies.Remove(CookieName);
HttpContext.Current.Response.Cookies.Add(myCookie);
}
private static string ConvertObjectToString(object CookieValue)
{
BinaryFormatter bf = new BinaryFormatter();
MemoryStream ms = new MemoryStream();
bf.Serialize(ms, CookieValue);
byte[] result = new byte[ms.Length];
result = ms.ToArray();
string temp = System.Convert.ToBase64String(result);
ms.Flush();
ms.Close();
return temp;
}
#endregion
#region 取得Cookie
/// <summary>
/// 取得Cookie
/// </summary>
/// <param name="CookieName">Cookie名称</param>
/// <returns>Cookie的值</returns>
public static object GetCookie(string CookieName)
{
HttpCookie myCookie = new HttpCookie(CookieName);
myCookie = HttpContext.Current.Request.Cookies[CookieName];
if (myCookie != null)
return ConvertStringToObject(myCookie.Value);
else
return null;
}
private static object ConvertStringToObject(string value)
{
byte[] b = System.Convert.FromBase64String(value);
MemoryStream ms = new MemoryStream(b, 0, b.Length);
BinaryFormatter bf = new BinaryFormatter();
return bf.Deserialize(ms);
}
#endregion
#region 清除Cookie
/// <summary>
/// 清除Cookie
/// </summary>
/// <param name="CookieName">Cookie名称</param>
public static void ClearCookie(string CookieName)
{
HttpCookie myCookie = new HttpCookie(CookieName);
DateTime now = DateTime.Now;
myCookie.Expires = now.AddYears(-2);
HttpContext.Current.Response.Cookies.Add(myCookie);
}
#endregion
}
}
补充：.NET技术 , C#
