将html响应内容的字符集设置为1252 [英] Setting the charset of html response content to 1252

问题描述

我试图在HTTP响应中发送一些在Windows 1252中编码的数据（它是一个CSV文件），但在某种程度上它被重新编码为UTF-8（没有BOM）。如何确保数据保持正确的编码？

  var sb = new StringBuilder 
 //从sb中的windows-1252字符串构建文件... 
 HttpContext.Current.Response.Clear（）; 
 HttpContextCurrent.Response.ClearHeaders（）; 
 HttpContext.Current.Response.ClearContent（）; 
 HttpContext.Current.Response.AddHeader（content-disposition，string.Format（filename = \{0} \.csv，fileName））; 
 HttpContext.Current.Response.ContentType =text / csv; charset = windows-1252; 
 HttpContext.Current.Response.Charset =windows-1252; 
 HttpContext.Current.Response.Write（sb.ToString（））; 
 HttpContext.Current.Response.Flush（）; 
 HttpContext.Current.Response.End（）; 
  

解决方案

调用

  HttpContext.Current.Response.Write（someString）
  

输入 someString 将在.NET的内部字符串表示（实际上是UTF-16）。要实际发送输出，必须进行转换。默认情况下，这种转换将是UTF-8（因为它有效地支持整个Unicode）。

Charset 属性只是设置HTTP响应头。但不包括 ContentEncoding
$ b

  HttpContext.Current.Response.ContentEncoding = Encoding.GetEncoding（Windows-1252）
  

请参阅 System.Text.Encoding的说明 支持的编码列表。

I'm trying to send some data encoded in Windows 1252 (it's a CSV file) in an HTTP response, but somewhere along the way it's getting re-encoded to UTF-8 (no BOM). How can I make sure that the data stays in the correct encoding?

var sb = new StringBuilder();
// Build the file from windows-1252 strings in the sb...
HttpContext.Current.Response.Clear();
HttpContext.Current.Response.ClearHeaders();
HttpContext.Current.Response.ClearContent();
HttpContext.Current.Response.AddHeader("content-disposition", string.Format("filename=\"{0}\".csv", fileName));
HttpContext.Current.Response.ContentType = "text/csv;charset=windows-1252";
HttpContext.Current.Response.Charset = "windows-1252";
HttpContext.Current.Response.Write(sb.ToString());
HttpContext.Current.Response.Flush();
HttpContext.Current.Response.End();

解决方案

When you call

HttpContext.Current.Response.Write(someString)

the input someString will be in .NET's internal string representation (actually UTF-16). To actually send the output this has to be converted. By default this conversion will be to UTF-8 (because it efficiently supports the whole of Unicode).

The Charset property simply sets the HTTP response headers. But not there is also a ContentEncoding property to actually control how strings are sent.

So you are missing

HttpContext.Current.Response.ContentEncoding = Encoding.GetEncoding("Windows-1252")

See the description of System.Text.Encoding for a list of supported encodings.

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