查询字符串转换％E1到％ufffd [英] QueryString converting %E1 to %ufffd

问题描述

我有这样一个URL以下

I have a URL like the following

http://mysite.com/default.aspx?q=%E1

其中，％E1 应该是 A 。当我打电话的Request.QueryString 从我的C＃网页我收到

Where %E1 is supposed to be á. When I call Request.QueryString from my C# page I receive

http://mysite.com/default.aspx?q=%ufffd

它这样做是任何重音字符。 ％E1，E3％，％E9，％ED 等方面都获得通过的％ufffd 。普通EN codeD值（％2D ，％2E ，％27 ）都得到正确地传递。

It does this for any accented character. %E1, %E3, %E9, %ED etc. all get passed as %ufffd. Normal encoded values (%2D, %2E, %27) all get passed correctly.

该配置文件已经有的ResponseEncoding / requestEncoding 在设置为UTF-8的全球化部分。

The config file already has the responseEncoding/requestEncoding in the globalization section set to UTF-8.

我怎么能读取正确的价值观？

How could I read the correct values?

请注意，我不是一个生成的查询字符串，我有没有对其进行控制。

Please note that I'm not the one generating the query string and I have no control over it.

推荐答案

虽然这是事实， A 为en codeD作为的 U + 00E1 ，使用UTF-8编码（也就是相关的URL参数）是 0xC3 0xA1 。

While it's true that á is encoded as U+00E1, the UTF-8 encoding (which is relevant for URL parameters) is 0xC3 0xA1.

您可以通过称为维基百科条目上的重音字母，如 HTTP验证：// en.wikipedia.org/wiki/%C3%81

You can verify by called a Wikipedia entry on an accented letter, such as http://en.wikipedia.org/wiki/%C3%81

U + FFFD 是统一code替换字符这表明一个给定的字符值不能被正确连接codeD中的Uni code。

U+FFFD is the Unicode Replacement Character which indicates the a given character value cannot be correctly encoded in Unicode.

更新：

您的问题有两点。

首先：我如何连接codeA统一code字符串作为参数。使用

First: How do I encode a Unicode string as parameter. Use

"?q=" + HttpUtility.UrlEncode(value)

二：我如何检索统一code值？用途：

Second: How do I retrieve a Unicode value? Use:

Request["q"]

如果您收到％E1 从其他来源你不用管，也许RawUrl可以帮助你。 （我没试过）

If you receive the %E1 from some other source you do not control, maybe the RawUrl can help you. (I have not tried)

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