如何使Stream.Write（）以UTF-8格式输出 [英] How to make Stream.Write() output in UTF-8 format

问题描述

我的问题是这样的：
我生成并上传使用ASP .NET中的sql文件，但该文件保存到FTP服务器后，像ü字符更改为＆多山，O＆来oslash;等等...我怎么能prevent这种情况发生？我不希望文件与ASCII code被格式化，而是用UTF-8。

my issue is this: I am generating and uploading an sql-file using ASP .Net, but after the file is saved to the ftp-server, characters like ü are changed to &uul;, ø to ø and so on... How can I prevent this from happening? I don't want the file to be formatted with ASCII code, but with UTF-8.

在code产生和上传文件看起来像这样：

The code that generates and uploads the file looks like this:

//request = the object to be made an request out of.
Stream requestStream = request.GetReguestStream();
var encoding = new UTF8Encoding();
//fileContent is the string to be saved in the file
byte[] buffer = encoding.GetBytes(fileContent); 
requestStream.Write(buffer, 0, buffer.Length);
requestStream.Close();

正如你可以看到我已经尝试使用 System.Text.UTF8Encoding ，但它不工作。

谢谢！

推荐答案

记住，用流可以在必要时几乎总是换流。如果你想编写UTF-8 EN codeD的内容你包在请求流的StreamWriter 通过正确的编码：

Remember, with streams you can almost always wrap the streams as necessary. If you want to write UTF-8 encoded content you wrap the request stream in a StreamWriter with the correct encoding:

using (Stream requestStream = request.GetRequestStream())
using (StreamWriter writer = new StreamWriter(requestStream, Encoding.UTF8)) {
  writer.Write(fileContent);
}

既然你说你要上传到Web服务一定要设置您的内容编码为好。既然你没有张贴在该要求对象来自，我会认为这是一个正常的<一个href=\"http://msdn.microsoft.com/en-us/library/system.net.httpwebrequest.aspx\">HttpWebRequest.

Since you say you're uploading to a web service be sure to set your content encoding as well. Since you haven't posted where the request object comes from, I'll assume it's a normal HttpWebRequest.

通过一个HttpWebRequest的，你会告诉服务器的​​内容编码是通过使用的ContentType 属性的东西。

With a HttpWebRequest you would tell the server what the content encoding is by using the ContentType property.

request.ContentType = "text/plain;charset=utf-8";

正如其他人所说，虽然，FTP传输本身可能破坏它。如果可以，确保它的二进制模式转移，而不是ASCII模式。

As others have mentioned, though, the FTP transfer itself may be breaking it too. If you can, make sure it's transferred in binary mode, not ASCII mode.

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