编码麻烦HttpWebResponse

问题描述

下面是code的一个片段：

 的HttpWebRequest的WebRequest =（HttpWebRequest的）WebRequest.Create（request.RawUrl）;
WebRequest.DefaultWebProxy = NULL; //确保我们不会在代理又往前走循环
HttpWebResponse响应=（HttpWebResponse）webRequest.GetResponse（）;
字符串charset = response.CharacterSet;
编码方式进行编码;
如果（String.IsNullOrEmpty（字符集））
编码= Encoding.Default;
其他
编码= Encoding.GetEncoding（字符集）;StreamReader的resStream =新的StreamReader（response.GetResponseStream（），编码）;
返回resStream.ReadToEnd（）;
 

问题是如果我测试：

所有é不显示良好。我试图改变ASCII为UTF8，它仍然显示错误。我已经测试的HTML文件在浏览器和浏览器中显示HTML文本很好，所以我pretty确定问题是我用下载HTML文件的方法。

我应该怎么改？

的删除死ImageShack链接的

更新1：code和测试文件修改

解决方案

首先，写一个code的更简单的方法是使用一个StreamReader和ReadToEnd的：

 的HttpWebRequest的WebRequest =（HttpWebRequest的）WebRequest.Create（myURL）;
使用（HttpWebResponse响应=（HttpWebResponse）webRequest.GetResponse（））
{
    使用（流resStream = response.GetResponseStream（））
    {
        StreamReader的读者=新的StreamReader（resStream，编码???。）;
        返回reader.ReadToEnd（）;
    }
}
 

然后，它只是一个找到正确的编码问题。你是如何创建的文件？如果是用记事本，那么你可能想 Encoding.Default - 但是这显然不是便携式的，因为它是默认编码的您的PC。

在一个运行良好的Web服务器，响应将显示在其标题中的编码。话虽如此，响应头有时声称一件事和HTML声称另一个，在某些情况下。

Here is a snippet of the code :

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();

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

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.

What should I change?

removed dead ImageShack link

Update 1: Code and test file changed

解决方案

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();
    }
}

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.

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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