如何在 VB.NET 的 HTTPCookie 中使用 & 符号？

发布于 2024-08-13 04:34:49 字数 486 浏览 5 评论 0原文

我向用户保存了一个 cookie，如下所示...

Dim searchCookie As HttpCookie = New HttpCookie("SearchCriteria")
searchCookie.Item("SearchText") = FullSearchCriteria.SearchText
searchCookie.Item("SearchType") = FullSearchCriteria.SearchType

SearchText 存储他们在上一页中输入的值。我们观察到，如果 cookie 中存在“&”符号（例如 Tyne & Wear），则 cookie 不会保存后续值（SearchType）。

所发生的情况是 cookie 的输出如下：

SearchText=Tyne &

显然 & 符号混淆了 cookie。有办法防止这种情况发生吗？

原文

I have a cookie saved to the user as follows...

Dim searchCookie As HttpCookie = New HttpCookie("SearchCriteria")
searchCookie.Item("SearchText") = FullSearchCriteria.SearchText
searchCookie.Item("SearchType") = FullSearchCriteria.SearchType

The SearchText stores a value they have input in a previous page. We have observed if there is an ampersand in the cookie (eg Tyne & Wear), then the cookie doesn't save subsequent values (SearchType).

What happens is the cookie is output like this:

SearchText=Tyne &

Obviously the ampersand is confusing the cookie. Is there a way to prevent this happening?

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哆啦不做梦 2024-08-20 04:34:49

您可以使用 URLEncode 方法。

类似于：

imports HttpContext.Current
...
Dim searchCookie As HttpCookie = New HttpCookie("SearchCriteria")
searchCookie.Item("SearchText") = Server.UrlEncode(FullSearchCriteria.SearchText)
searchCookie.Item("SearchType") = Server.UrlEncode(FullSearchCriteria.SearchType)

这是至关重要的，因为 cookie 中只允许使用某些字符，其中包含诸如 & 符号破坏它们。

You can use the URLEncode method.

Something like:

imports HttpContext.Current
...
Dim searchCookie As HttpCookie = New HttpCookie("SearchCriteria")
searchCookie.Item("SearchText") = Server.UrlEncode(FullSearchCriteria.SearchText)
searchCookie.Item("SearchType") = Server.UrlEncode(FullSearchCriteria.SearchType)

This is essential as only certain characters are allowed in cookies with characters such as ampersands breaking them.

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dawn曙光 2024-08-20 04:34:49

噢！我真是个笨蛋...

Dim searchCookie As HttpCookie = New HttpCookie("SearchCriteria")
searchCookie.Item("SearchText") = HttpContext.Current.Server.UrlEncode(FullSearchCriteria.SearchText)
searchCookie.Item("SearchType") = HttpContext.Current.Server.UrlEncode(FullSearchCriteria.SearchType)

D'oh! I'm such a dork...

Dim searchCookie As HttpCookie = New HttpCookie("SearchCriteria")
searchCookie.Item("SearchText") = HttpContext.Current.Server.UrlEncode(FullSearchCriteria.SearchText)
searchCookie.Item("SearchType") = HttpContext.Current.Server.UrlEncode(FullSearchCriteria.SearchType)

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