HttpCookieCollection.Add VS HttpCookieCollection.Set - 是否Request.Cookies集合被复制到Response.Cookies集合？ [英] HttpCookieCollection.Add vs HttpCookieCollection.Set - Does the Request.Cookies collection get copied to the Response.Cookies collection?

问题描述

我只是想清楚这件事。

我知道，如果我设置一个previous要求一个cookie，它会在我的 Request.Cookies时收集露面。

I know that if I have set a cookie on a previous request, it will show up in my Request.Cookies collection.

我想更新现有的Cookie。

I want to update my existing Cookie.

从我 Request.Cookies时收集饼干已经复制到我的 Response.Cookies 收藏？我是否需要添加一个新的cookie使用 Response.Cookies.Add（）相同的密钥，或者我需要使用 Response.Cookies。设置（）？

Are the cookies from my Request.Cookies collection already copied to my Response.Cookies collection? Do I need to add a new cookie with the same key using Response.Cookies.Add(), or do I need to use Response.Cookies.Set()?

推荐答案

有是有区别的：

• Response.Cookies.Add（）将允许重复的cookie被设置<一个href=\"http://msdn.microsoft.com/en-us/library/system.web.httpcookiecollection.add.aspx\">http://msdn.microsoft.com/en-us/library/system.web.httpcookiecollection.add.aspx


• Response.Cookies.Set（）将确保cookie是独一无二的，首先检查，以确保该cookie不存在<一个href=\"http://msdn.microsoft.com/en-us/library/system.web.httpcookiecollection.set.aspx\">http://msdn.microsoft.com/en-us/library/system.web.httpcookiecollection.set.aspx

• Response.Cookies.Add() will allow duplicate cookies to be set http://msdn.microsoft.com/en-us/library/system.web.httpcookiecollection.add.aspx
• Response.Cookies.Set() will make sure the cookie is unique by first checking to ensure the cookie doesn't exist http://msdn.microsoft.com/en-us/library/system.web.httpcookiecollection.set.aspx

复制饼干通常需要额外的处理，以确定哪些是最新的。我不知道的情况下，当你想在同一地点重复的饼干，也许别人可以用一​​个例子附和

Duplicate cookies typically requires extra handling to determine which is the most recent. I'm not sure of a case when you would want duplicate cookies on the same site, maybe someone else can chime in with an example

编辑：的在您的情况，您要使用设置，因为你正在更新

In your case, you want to use set because you are updating.

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