c# - Azure 不支持外语文件格式名称下载

Question

当我试图从基于 azure 的托管网站下载文件时，该网站显示以下内容。
它的文件上有一个俄语名称，现在当我下载时，它会以某种机器语言显示，如上图所示，因为我正在使用 Chrome 下载该文件。

现在，当我从本地项目下载本地计算机上的图像时，它会为我提供该语言下载的文件，下面是一个示例。
正如您所看到的，文件名在该语言中是相同的。

客户端对 Azure 上的语言全局化的 Web 配置进行了一些更改，但没有成功。

如果有人有任何解决方案，请建议我。谢谢

Answer 1

更新

我之前的回答是正确的。我现在将向您展示我所有的测试代码。您可以编写一个演示测试来完全解决您的问题。

下面是我的代码:

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.Mvc;

namespace Downloadasp.Controllers
{
    public class HomeController : Controller
    {
        public ActionResult Index()
        {
            return View();
        }

        public ActionResult About()
        {
            ViewBag.Message = "Your application description page.";

            return View();
        }

        public ActionResult Contact()
        {
            ViewBag.Message = "Your contact page.";

            return View();
        }
        public void DownloadOperation()
        {
            // Original file name
            string fileName = "- room__комната.jpg";
            string strFilePath = "/upload/image/20180307/";
            // Server Path
            string filepath = Server.MapPath(strFilePath)+fileName;
            FileInfo fileInfo = new FileInfo(filepath);
            Response.Clear();
            Response.ClearContent();
            Response.ClearHeaders();
            // Solve garbled file names
            if (Request.UserAgent.Contains("MSIE") || Request.UserAgent.Contains("msie"))
            {
                // If the client uses Microsoft Internet Explorer, encoding is required
                fileName = ToHexString(fileName);
            }
            // The core part of the problem solving
            // Already tested
            Response.AddHeader("Content-Disposition", "attachment;filename=" + System.Web.HttpUtility.UrlEncode(fileName, System.Text.Encoding.UTF8));
            Response.AddHeader("Content-Length", fileInfo.Length.ToString());
            Response.AddHeader("Content-Transfer-Encoding", "binary");
            Response.ContentType = "application/octet-stream";
            Response.ContentEncoding = System.Text.Encoding.GetEncoding("utf-8");
            Response.WriteFile(fileInfo.FullName);
            Response.Flush();
            Response.End();
        }

        /// <summary>
        /// Encode non-English characters in the string
        /// </summary>
        /// <param name="s"></param>
        /// <returns></returns>
        public static string ToHexString(string s)
        {
            char[] chars = s.ToCharArray();
            StringBuilder builder = new StringBuilder();
            for (int index = 0; index < chars.Length; index++)
            {
                bool needToEncode = NeedToEncode(chars[index]);
                if (needToEncode)
                {
                    string encodedString = ToHexString(chars[index]);
                    builder.Append(encodedString);
                }
                else
                {
                    builder.Append(chars[index]);
                }
            }

            return builder.ToString();
        }

        /// <summary>
        ///Specifies whether a character should be encoded
        /// </summary>
        /// <param name="chr"></param>
        /// <returns></returns>
        private static bool NeedToEncode(char chr)
        {
            string reservedChars = "$-_.+!*'(),@=&";

            if (chr > 127)
                return true;
            if (char.IsLetterOrDigit(chr) || reservedChars.IndexOf(chr) >= 0)
                return false;

            return true;
        }

        /// <summary>
        /// Encode non-English strings
        /// </summary>
        /// <param name="chr"></param>
        /// <returns></returns>
        private static string ToHexString(char chr)
        {
            UTF8Encoding utf8 = new UTF8Encoding();
            byte[] encodedBytes = utf8.GetBytes(chr.ToString());
            StringBuilder builder = new StringBuilder();
            for (int index = 0; index < encodedBytes.Length; index++)
            {
                builder.AppendFormat("%{0}", Convert.ToString(encodedBytes[index], 16));
            }
            return builder.ToString();
        }


        public bool IsReusable
        {
            get
            {
                return false;
            }
        }
   }
}

隐私

解决文件名乱码的核心代码语句。

System.Web.HttpUtility.UrlEncode(filename, System.Text.Encoding.UTF8);

示例代码:

System.IO.FileInfo file = new System.IO.FileInfo("filename.xls");
Response.Clear();
// Solve garbled file names
Response.AddHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(file.Name));

Response.AddHeader("Content-Length", file.Length.ToString());
Response.ContentType = "application/application/octet-stream";
Response.WriteFile(file.FullName);
Response.End();
Response.Flush();
Response.Clear();