MIME

MIME - Multipurpose Internet Mail Extensions

MIME是用来定义document，file或binary的性质和格式

语法 type/subtype type/subtype;parameter=value

1. text

   • text/plain - text默认
     • text/plain;charset=UTF-8
   • text/html
   • text/css
   • text/javascript
   • text/markdown

2. image

   • image/gif
   • image/png
   • image/jpeg
   • image/bmp
   • image/webp
   • image/svg+xml
   • image/x-icon
   • image/vnd.microsoft.icon

3. audio

   • audio/midi
   • audio/mpeg
   • audio/webm
   • audio/ogg
   • audio/wav

4. video

   • video/webm
   • video/ogg

5. application

   • application/octet-stream - binary默认
     • Content-Disposition header 被设置成 attachment, 并且可能会弹出一个保存框。
   • application/pkcs12
   • application/json
   • application/vnd.mspowerpoint
   • application/xhtml+xml
   • application/xml
   • application/pd
6. multipart
   • multipart/form-data
   • multipart/byteranges
     • 用来发送部分回应给服务器。当206 Partial Content状态码被发送时， multipart/byteranges 表明这个文档有多个部分组成。每个部分都有它自己 Content-Range 和 Content-Type 这2个header。

          HTTP/1.1 206 Partial Content
       Accept-Ranges: bytes
        Content-Type: multipart/byteranges; boundary=3d6b6a416f9b5
        Content-Length: 385
        
        --3d6b6a416f9b5
        Content-Type: text/html
        Content-Range: bytes 100-200/1270
        
        eta http-equiv="Content-type" content="text/html; charset=utf-8" />
            <meta name="vieport" content
        --3d6b6a416f9b5
        Content-Type: text/html
        Content-Range: bytes 300-400/1270
        
        -color: #f0f0f2;
                margin: 0;
                padding: 0;
                font-family: "Open Sans", "Helvetica
        --3d6b6a416f9b5--

参考链接：

1. https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types
2. https://www.iana.org/assignments/media-types/media-types.xhtml