HttpWebResponse 的编码问题 [英] Encoding trouble with HttpWebResponse

问题描述

下面是代码片段:

HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(request.RawUrl);
WebRequest.DefaultWebProxy = null;//Ensure that we will not loop by going again in the proxy
HttpWebResponse response = (HttpWebResponse)webRequest.GetResponse();
string charSet = response.CharacterSet;
Encoding encoding;
if (String.IsNullOrEmpty(charSet))
encoding = Encoding.Default;
else
encoding = Encoding.GetEncoding(charSet);

StreamReader resStream = new StreamReader(response.GetResponseStream(), encoding);
return resStream.ReadToEnd();

问题是如果我用以下方式测试:http://www.google.fr

The problem is if I test with : http://www.google.fr

所有é"显示效果不佳.我尝试将 ASCII 更改为 UTF8，但它仍然显示错误.我已经在浏览器中测试了 html 文件，并且浏览器可以很好地显示 html 文本，所以我很确定问题出在我用来下载 html 文件的方法中.

All "é" are not displaying well. I have try to change ASCII to UTF8 and it still display wrong. I have tested the html file in a browser and the browser display the html text well so I am pretty sure the problem is in the method I use to download the html file.

我应该改变什么?

删除了无效的 ImageShack 链接

推荐答案

首先，编写该代码的更简单方法是使用 StreamReader 和 ReadToEnd:

Firstly, the easier way of writing that code is to use a StreamReader and ReadToEnd:

HttpWebRequest webRequest = (HttpWebRequest)WebRequest.Create(myURL);
using (HttpWebResponse response = (HttpWebResponse)webRequest.GetResponse())
{
    using (Stream resStream = response.GetResponseStream())
    {
        StreamReader reader = new StreamReader(resStream, Encoding.???);
        return reader.ReadToEnd();
    }
}

然后只是"找到正确的编码的问题.你是如何创建文件的?如果它与记事本一起使用，那么您可能需要 Encoding.Default - 但这显然不可移植，因为它是 您的 PC 的默认编码.

Then it's "just" a matter of finding the right encoding. How did you create the file? If it's with Notepad then you probably want Encoding.Default - but that's obviously not portable, as it's the default encoding for your PC.

在运行良好的 Web 服务器中，响应将在其标头中指明编码.话虽如此，在某些情况下，响应标头有时会声明一件事，而 HTML 声明另一件事.

In a well-run web server, the response will indicate the encoding in its headers. Having said that, response headers sometimes claim one thing and the HTML claims another, in some cases.

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