我要评论本文实例讲述了c#自定义简化cookie类。分享给大家供大家参考。具体分析如下：
这个c#类封装了常用的cookie操作，包括读取cookie、写入cookie、设置cookie过期时间等等。
using system;
using system.web;
namespace dotnet.utilities
{
public class cookiehelper
{
/// <summary>
/// 清除指定cookie
/// </summary>
/// <param name="cookiename">cookiename</param>
public static void clearcookie(string cookiename)
{
httpcookie cookie = httpcontext.current.request.cookies[cookiename];
if (cookie != null)
{
cookie.expires = datetime.now.addyears(-3);
httpcontext.current.response.cookies.add(cookie);
}
}
/// <summary>
/// 获取指定cookie值
/// </summary>
/// <param name="cookiename">cookiename</param>
/// <returns></returns>
public static string getcookievalue(string cookiename)
{
httpcookie cookie = httpcontext.current.request.cookies[cookiename];
string str = string.empty;
if (cookie != null)
{
str = cookie.value;
}
return str;
}
/// <summary>
/// 添加一个cookie（24小时过期）
/// </summary>
/// <param name="cookiename"></param>
/// <param name="cookievalue"></param>
public static void setcookie(string cookiename, string cookievalue)
{
setcookie(cookiename, cookievalue, datetime.now.adddays(1.0));
}
/// <summary>
/// 添加一个cookie
/// </summary>
/// <param name="cookiename">cookie名</param>
/// <param name="cookievalue">cookie值</param>
/// <param name="expires">过期时间 datetime</param>
public static void setcookie(string cookiename, string cookievalue,datetime expires)
{
httpcookie cookie = new httpcookie(cookiename)
{
value = cookievalue,
expires = expires
};
httpcontext.current.response.cookies.add(cookie);
}
}
}
希望本文所述对大家的c#程序设计有所帮助。
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