ASP MVC设置Cookie

主要用于.NET ASP MVC获取或者设置Cookie

1、保存Cookie

public void SaveCookie(string uid, string passwd)
{
    int time = Time.GetUnixTime();
    string md5Passwd = Encrypt.MD5(passwd);
    string key = Base64.Base64Encode(uid + ":" + md5Passwd + ":" + time);
    //添加此cookie
    HttpCookie cook = new HttpCookie("USER");
    cook.Expires = DateTime.Now.AddDays(15);
    cook.Values.Set("KEY", key);
    cook.HttpOnly = true;
    Response.Cookies.Add(cook);
}

2、获取Cookie

HttpCookie cook = Request.Cookies["USER"];

3、清除Cookie

/// <summary>
/// 清除Cookie
/// </summary>
/// <param name="cookie"></param>
public void CookieClear(HttpCookie cookie)
{
    if (cookie != null)
    {
        cookie.Expires = DateTime.Now.AddDays(-1);
        Response.Cookies.Add(cookie);
    }
    else
    {
        HttpCookie cook = new HttpCookie("USER");
        cook.Expires = DateTime.Now.AddDays(-1);
        cook.Values.Set("KEY", "");
        Response.Cookies.Add(cook);
    }
}

4、关于Cookie的生命周期

4.1 一定的时间失效

cook.Expires = DateTime.Now.AddDays(15);   //15天失效

4.2 当前浏览器窗口有效，关闭浏览器失效

cook.Expires = DateTime.MinValue;  //表示关闭浏览器过期  

4.3 立即失效

cook.Expires = DateTime.Now.AddDays(-1);