Response.Cookies.Clear（）不起作用？ [英] Response.Cookies.Clear() not working?

问题描述

我想删除所有Cookie。我认为有两种方式：



1.

I want to delete all the cookies. I think there're 2 way:

1.

Response.Cookies.Clear();

2.

2.

string[] myCookie = Request.Cookies.AllKeys;
foreach (string cookie in myCookie)
{
     Response.Cookies[cookie].Expires = DateTime.Now.AddDays(-1);
}

结果只有方法2工作，为什么方法1不起作用？



MSDN说约 HttpCookieCollection.Clear（）：清除cookie集合中的所有cookie。

HttpCookieCollection.Clear方法 [ ^ ]为什么它不起作用？我认为它应该可行。

The result is only method 2 work, why method 1 doesn't work?

MSDN says about HttpCookieCollection.Clear() : Clears all cookies from the cookie collection.
HttpCookieCollection.Clear Method[^] Why it doesn't work? I think it should work.

推荐答案

清除响应的cookie不会影响存储在客户端上的cookie - 它只是指示响应不发送这些cookie给客户。



如果你想从客户端删除cookie，你必须将它设置为过期。

想一想：如果你有两个不同系统的cookie在同一个域上运行，你就不想要另一个清除cookie了！实际的cookie删除必须是明确的。

Clearing the cookies of the response doesn't affect the cookies stored on the client - it just instructs the Response not to send those cookies to the client.

If you want to remove a cookie from the client, you have to set it to expired as you are doing.
Think about it: if you have cookies from two different systems running on the same domain, you don;t want one clearing cookies for the other! Actual cookie removal has to be explicit.

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