Asp.net IE中的有效文件名（用于下载）？

我在aspnet mvc中有一个返回FileContentResult的操作。我注意到，当fileDownloadName包含umlauts（ieåäöü）时，Internet Explorer根本无法读取文件名

我尝试过以下方法：

return this.File(document.Content, contentType, Server.UrlEncode(document.Name));

但是所有空格都被加号（+）替换

有没有办法让unicode文件名与IE一起工作（保持原始文件名不变）？

这就是我目前正在使用的黑客：

return this.File(
    document.Content, 
    contentType, 
    Server.UrlEncode(document.Name).Replace('+',' '));

---

（这在IE中将空格显示为下划线）

只需按照您的方式对文件名进行编码，然后将所有

+

替换为

%20

。未经测试，但应能正常工作。

对于我使用的解决方案。也许你可以试着像这样使用它

return this.File(
  document.Content,
  contentType,
  "\"" + Server.UrlEncode(document.Name) + "\"");

或

UrlEncode

的名称有误导性，它仅用于表单数据。您可能希望改为使用

urlpathcode

，这将解决

+

问题。有关背景信息，请参阅

然而，无论如何，URL编码在这里都是错误的，因为您没有构建URL。它在IE中工作的事实是一个bug，这就是为什么在其他浏览器中会出现

%

-序列

不幸的是，没有可靠的跨浏览器方法将非ASCII字符放入

内容配置

文件名参数。从理论上讲，使用RFC2331规则可能是可行的，但即便如此，规范还是有争议的，事实上没有任何东西支持它。有关背景信息，请参阅

有没有办法让unicode文件名与IE一起工作（保持原始文件名不变）

从

内容处置

标题中删除

文件名

参数，而是将文件名作为脚本地址的尾随路径部分，在该地址中使用URL编码（UTF-8和

UrlPathEncode

）非常有效。例如，对于

someaction

控制器：

http://www.example.com/someaction/åäöü.txt
http://www.example.com/someaction/%C3%A5%C3%A4%C3%B6%C3%BC.txt

---

所有浏览器都会将生成的文件保存为

åäöü.txt

我已经尝试过编码的方法，在Chrome和FF中工作得很好，但在IE中遇到了问题。 所以我就想出了自己的清洁程序。基本上，它只是一个映射表，因为我们不想删除所有特殊字符

//http://www.pjb.com.au/comp/diacritics.html
private static string[,] CharacterReplacements = { 
    { " ", "-"},
    { "&", "-"},
    { "?", "-"},
    { "!", "-"},
    { "%", "-"},
    { "+", "-"},
    { "#", "-"},
    { ":", "-"},
    { ";", "-"},
    { ".", "-"},

    { "¢", "c" },   //cent
    { "£", "P" },   //Pound
    { "€", "E" },   //Euro
    { "¥", "Y" },   //Yen
    { "°", "d" },   //degree
    { "¼", "1-4" }, //fraction one-quarter
    { "½", "1-2" }, //fraction half    
    { "¾", "1-3" }, //fraction three-quarters}
    { "@", "AT)"}, //at                                                  
    { "Œ", "OE" },  //OE ligature, French (in ISO-8859-15)        
    { "œ", "oe" },  //OE ligature, French (in ISO-8859-15)        

    {"Å","A" },  //ring
    {"Æ","AE"},  //diphthong
    {"Ç","C" },  //cedilla
    {"È","E" },  //grave accent
    {"É","E" },  //acute accent
    {"Ê","E" },  //circumflex accent
    {"Ë","E" },  //umlaut mark
    {"Ì","I" },  //grave accent
    {"Í","I" },  //acute accent
    {"Î","I" },  //circumflex accent
    {"Ï","I" },  //umlaut mark
    {"Ð","Eth"}, //Icelandic
    {"Ñ","N" },  //tilde
    {"Ò","O" },  //grave accent
    {"Ó","O" },  //acute accent
    {"Ô","O" },  //circumflex accent
    {"Õ","O" },  //tilde
    {"Ö","O" },  //umlaut mark
    {"Ø","O" },  //slash
    {"Ù","U" },  //grave accent
    {"Ú","U" },  //acute accent
    {"Û","U" },  //circumflex accent
    {"Ü","U" },  //umlaut mark
    {"Ý","Y" },  //acute accent
    {"Þ","eth"}, //Icelandic - http://en.wikipedia.org/wiki/Thorn_(letter)
    {"ß","ss"},  //German

    {"à","a" },  //grave accent
    {"á","a" },  //acute accent
    {"â","a" },  //circumflex accent
    {"ã","a" },  //tilde
    {"ä","ae"},  //umlaut mark
    {"å","a" },  //ring
    {"æ","ae"},  //diphthong
    {"ç","c" },  //cedilla
    {"è","e" },  //grave accent
    {"é","e" },  //acute accent
    {"ê","e" },  //circumflex accent
    {"ë","e" },  //umlaut mark
    {"ì","i" },  //grave accent
    {"í","i" },  //acute accent
    {"î","i" },  //circumflex accent
    {"ï","i" },  //umlaut mark
    {"ð","eth"}, //Icelandic
    {"ñ","n" },  //tilde
    {"ò","o" },  //grave accent
    {"ó","o" },  //acute accent
    {"ô","o" },  //circumflex accent
    {"õ","o" },  //tilde
    {"ö","oe"},  //umlaut mark
    {"ø","o" },  //slash
    {"ù","u" },  //grave accent
    {"ú","u" },  //acute accent
    {"û","u" },  //circumflex accent
    {"ü","ue"},  //umlaut mark
    {"ý","y" },  //acute accent
    {"þ","eth"}, //Icelandic - http://en.wikipedia.org/wiki/Thorn_(letter)
    {"ÿ","y" },  //umlaut mark
    };

我已经将其包装成一个函数，您可以在这里找到代码：

---

在IE中运行良好，但现在在chrome中，文件名包含%2b，而之前的空格是。再次将

+

替换为空格如何？这应该是允许的，因为它是ANSI字符。您还可以尝试下面的答案之一中提供的代码：如果浏览器有内置插件打开该文件类型（例如-PDFs），则会导致问题。在这种情况下，文件将不会保存，而是在浏览器中自动打开，这可能不是所需的行为。@Tom:您仍然可以传递

内容处置：附件

标题，而不需要

文件名

参数。

//http://www.pjb.com.au/comp/diacritics.html
private static string[,] CharacterReplacements = { 
    { " ", "-"},
    { "&", "-"},
    { "?", "-"},
    { "!", "-"},
    { "%", "-"},
    { "+", "-"},
    { "#", "-"},
    { ":", "-"},
    { ";", "-"},
    { ".", "-"},

    { "¢", "c" },   //cent
    { "£", "P" },   //Pound
    { "€", "E" },   //Euro
    { "¥", "Y" },   //Yen
    { "°", "d" },   //degree
    { "¼", "1-4" }, //fraction one-quarter
    { "½", "1-2" }, //fraction half    
    { "¾", "1-3" }, //fraction three-quarters}
    { "@", "AT)"}, //at                                                  
    { "Œ", "OE" },  //OE ligature, French (in ISO-8859-15)        
    { "œ", "oe" },  //OE ligature, French (in ISO-8859-15)        

    {"Å","A" },  //ring
    {"Æ","AE"},  //diphthong
    {"Ç","C" },  //cedilla
    {"È","E" },  //grave accent
    {"É","E" },  //acute accent
    {"Ê","E" },  //circumflex accent
    {"Ë","E" },  //umlaut mark
    {"Ì","I" },  //grave accent
    {"Í","I" },  //acute accent
    {"Î","I" },  //circumflex accent
    {"Ï","I" },  //umlaut mark
    {"Ð","Eth"}, //Icelandic
    {"Ñ","N" },  //tilde
    {"Ò","O" },  //grave accent
    {"Ó","O" },  //acute accent
    {"Ô","O" },  //circumflex accent
    {"Õ","O" },  //tilde
    {"Ö","O" },  //umlaut mark
    {"Ø","O" },  //slash
    {"Ù","U" },  //grave accent
    {"Ú","U" },  //acute accent
    {"Û","U" },  //circumflex accent
    {"Ü","U" },  //umlaut mark
    {"Ý","Y" },  //acute accent
    {"Þ","eth"}, //Icelandic - http://en.wikipedia.org/wiki/Thorn_(letter)
    {"ß","ss"},  //German

    {"à","a" },  //grave accent
    {"á","a" },  //acute accent
    {"â","a" },  //circumflex accent
    {"ã","a" },  //tilde
    {"ä","ae"},  //umlaut mark
    {"å","a" },  //ring
    {"æ","ae"},  //diphthong
    {"ç","c" },  //cedilla
    {"è","e" },  //grave accent
    {"é","e" },  //acute accent
    {"ê","e" },  //circumflex accent
    {"ë","e" },  //umlaut mark
    {"ì","i" },  //grave accent
    {"í","i" },  //acute accent
    {"î","i" },  //circumflex accent
    {"ï","i" },  //umlaut mark
    {"ð","eth"}, //Icelandic
    {"ñ","n" },  //tilde
    {"ò","o" },  //grave accent
    {"ó","o" },  //acute accent
    {"ô","o" },  //circumflex accent
    {"õ","o" },  //tilde
    {"ö","oe"},  //umlaut mark
    {"ø","o" },  //slash
    {"ù","u" },  //grave accent
    {"ú","u" },  //acute accent
    {"û","u" },  //circumflex accent
    {"ü","ue"},  //umlaut mark
    {"ý","y" },  //acute accent
    {"þ","eth"}, //Icelandic - http://en.wikipedia.org/wiki/Thorn_(letter)
    {"ÿ","y" },  //umlaut mark
    };