Question

我正在创建一个cookie并在其中获取文本框值。我需要使其过期，然后通过检查它是否已过期来打印消息。我正在执行以下操作

 HttpCookie usercookie = new HttpCookie("userinfo");
        Response.Cookies["gettingusername"].Value = textbox_username.Text;
        Response.Cookies["gettingusername"].Expires = DateTime.Now;
        Response.Cookies.Add(usercookie);
        if (Request.Cookies["gettingusername"]!=null)
        {
            Response.Write("Cookie is Not Expired");
        }
        else
        {
           Response.Write("Cookie Expired");
        }

但它总是说： -

Cookie is Not Expired

我是新手。请帮助。提前谢谢。

Answer 1

你可以这样做：

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

if(myCookie.Expires > DateTime.Now)
  Response.Write("Cookie not Expired");
else
  Response.Write("Cookie Expired");

Answer 2

浏览器负责删除过期的Cookie。您只需要在将来设定它将过期的时间。例如：

if (Request.Cookies["gettingusername"] != null)
{
    Response.Write("Cookie is not expired")
    Response.Write("Value exists : " + Request.Cookies["gettingusername"]);
}
else
{
   Response.Write("Cookie is expired, creating a new cookie.");
   Response.Cookies.Add(new HttpCookie("gettingusername")
   {
       Value = textbox_username.Text,
       Expires = DateTime.Now.AddDays(1)
   });
}

Answer 3

尝试以下方法......

if (Request.Cookies["gettingusername"] != null)
{
    HttpCookie myCookie = new HttpCookie("userinfo");
    myCookie.Expires = DateTime.Now.AddDays(-1);//add -1 days
    Response.Cookies.Add(myCookie);
}

Answer 4

无法准确理解你想要实现的目标。您应该设置它们并检查它们是否以不同的方法过期。

例如，您可以在按“设置Cookie”按钮时设置Cookie并在操作中使其过期'Expire Cookie'

Answer 5

这是您现在可以删除 cookie 的方法..！

<ul class="navbar-nav">
    <li class="nav-item">
        <router-link class="nav-link" :to="{
                      path: '/',
                      hash: 'home',
                    }" :active='$route.name =="home"'>Home</router-link>
    </li>
    <li class="nav-item">
        <router-link to="/About" :active='$route.name =="about"' class="nav-link">About</router-link>
    </li>
    <li class="nav-item">
        <a class="nav-link" v-b-modal.modal-contact>Contact</a>
    </li>
</ul>

asp.net中的Cookie过期问题

5 个答案: