blocks|key|719265|text|下面是Chrome和一个静态web服务器之间的对话，检索一个MP4视频。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|719266|初始请求-视频。注意Accept-Ranges响应报头，表示服务器支持range报头：|offset|length|style|CODE|719267|GET+/BigBuckBunny_320x180.mp4
++++++++Cache-Control:+max-age=0
++++++++Connection:+keep-alive
++++++++Accept-Language:+en-GB,en-US,en
++++++++Host:+localhost:8080
++++++++Range:
++++++++Accept:+text/html,application/xhtml%2Bxml,application/xml,*/*
++++++++User-Agent:+Mozilla/5.0+(Windows+NT+5.1)+AppleWebKit/535.7+...
++++++++Accept-Encoding:+gzip,deflate,sdch
++++++++Accept-Charset:+ISO-8859-1,utf-8,*
200+OK
++++++++Content-Type:+video/mp4
++++++++Connection:+keep-alive
++++++++Last-Modified:+Wed,14+Dec+2011+15:50:59+GMT
++++++++ETag:+A023EF02BD589BC472A2D6774EAE3C58
++++++++Transfer-Encoding:
++++++++Content-Length:+64657027
++++++++Accept-Ranges:+bytes
++++++++Server:+Brisket/1.0.1
++++++++Date:+Wed,14+Dec+2011+16:11:24+GMT|code-block|syntax|javascript|719268|检测到前一个响应中的Range标头-后续请求具有开放范围以确认支持。Response返回206状态和Content-Range标头，以指示响应体中存在的字节：|719269|GET+/BigBuckBunny_320x180.mp4
++++++++Connection:+keep-alive
++++++++Accept-Language:+en-GB,en-US,en
++++++++Host:+localhost:8080
++++++++Range:+bytes=0-
++++++++Accept:+*/*
++++++++User-Agent:+Mozilla/5.0+(Windows+NT+5.1)+AppleWebKit/535.7+...
++++++++Referer:+http://localhost:8080/BigBuckBunny_320x180.mp4
++++++++Accept-Encoding:+identity
++++++++Accept-Charset:+ISO-8859-1,utf-8,*
206+Partial+Content
++++++++Content-Type:+video/mp4
++++++++Connection:+keep-alive
++++++++Last-Modified:+Wed,14+Dec+2011+15:50:59+GMT
++++++++ETag:+A023EF02BD589BC472A2D6774EAE3C58
++++++++Transfer-Encoding:
++++++++Content-Length:+64657027
++++++++Accept-Ranges:+bytes
++++++++Server:+Brisket/1.0.1
++++++++Date:+Wed,14+Dec+2011+16:11:25+GMT
++++++++Content-Range:+bytes+0-64657026/64657027|719270|捕获文件末尾的后续范围请求(可能是捕获尾随元数据)：|719271|GET+/BigBuckBunny_320x180.mp4
++++++++Connection:+keep-alive
++++++++Accept-Language:+en-GB,en-US,en
++++++++Host:+localhost:8080
++++++++Range:+bytes=64312833-64657026
++++++++Accept:+*/*
++++++++If-Range:+A023EF02BD589BC472A2D6774EAE3C58
++++++++User-Agent:+Mozilla/5.0+(Windows+NT+5.1)+AppleWebKit/535.7+...
++++++++Referer:+http://localhost:8080/BigBuckBunny_320x180.mp4
++++++++Accept-Encoding:+identity
++++++++Accept-Charset:+ISO-8859-1,utf-8,*
206+Partial+Content
++++++++Content-Type:+video/mp4
++++++++Connection:+keep-alive
++++++++Last-Modified:+Wed,14+Dec+2011+15:50:59+GMT
++++++++ETag:+A023EF02BD589BC472A2D6774EAE3C58
++++++++Transfer-Encoding:
++++++++Content-Length:+344194
++++++++Accept-Ranges:+bytes
++++++++Server:+Brisket/1.0.1
++++++++Date:+Wed,14+Dec+2011+16:11:25+GMT
++++++++Content-Range:+bytes+64312833-64657026/64657027|719272|用户在视频进度条中点击超出下载范围-发出范围请求，从所选位置开始播放：|719273|GET+/BigBuckBunny_320x180.mp4
++++++++Connection:+keep-alive
++++++++Accept-Language:+en-GB,en-US,en
++++++++Host:+localhost:8080
++++++++Range:+bytes=1073152-64313343
++++++++Accept:+*/*
++++++++If-Range:+A023EF02BD589BC472A2D6774EAE3C58
++++++++User-Agent:+Mozilla/5.0+(Windows+NT+5.1)+AppleWebKit/535.7+...
++++++++Referer:+http://localhost:8080/BigBuckBunny_320x180.mp4
++++++++Accept-Encoding:+identity
++++++++Accept-Charset:+ISO-8859-1,utf-8,*
206+Partial+Content
++++++++Content-Type:+video/mp4
++++++++Connection:+keep-alive
++++++++Last-Modified:+Wed,14+Dec+2011+15:50:59+GMT
++++++++ETag:+A023EF02BD589BC472A2D6774EAE3C58
++++++++Transfer-Encoding:
++++++++Content-Length:+63240192
++++++++Accept-Ranges:+bytes
++++++++Server:+Brisket/1.0.1
++++++++Date:+Wed,14+Dec+2011+16:11:25+GMT
++++++++Content-Range:+bytes+1073152-64313343/64657027|719274|entityMap^0|0|A|D|0|0|1E|D|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|11|8|@$D|12|E|13|F|G]]|9|@]|A|$]]|$1|H|3|I|5|J|7|14|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|15|8|@$D|16|E|17|F|G]]|9|@]|A|$]]|$1|O|3|P|5|J|7|18|8|@]|9|@]|A|$K|L]]|$1|Q|3|R|5|6|7|19|8|@]|9|@]|A|$]]|$1|S|3|T|5|J|7|1A|8|@]|9|@]|A|$K|L]]|$1|U|3|V|5|6|7|1B|8|@]|9|@]|A|$]]|$1|W|3|X|5|J|7|1C|8|@]|9|@]|A|$K|L]]|$1|Y|3|-4|5|6|7|1D|8|@]|9|@]|A|$]]]|Z|$]]

The following exchange is between Chrome and a static web server, retrieving an MP4 video.

Initial request - for the video. Note the <code>Accept-Ranges</code> response header to indicate the server has range header support:

<pre><code>GET /BigBuckBunny_320x180.mp4
 Cache-Control: max-age=0
 Connection: keep-alive
 Accept-Language: en-GB,en-US,en
 Host: localhost:8080
 Range:
 Accept: text/html,application/xhtml+xml,application/xml,*/*
 User-Agent: Mozilla/5.0 (Windows NT 5.1) AppleWebKit/535.7 ...
 Accept-Encoding: gzip,deflate,sdch
 Accept-Charset: ISO-8859-1,utf-8,*
200 OK
 Content-Type: video/mp4
 Connection: keep-alive
 Last-Modified: Wed,14 Dec 2011 15:50:59 GMT
 ETag: A023EF02BD589BC472A2D6774EAE3C58
 Transfer-Encoding:
 Content-Length: 64657027
 Accept-Ranges: bytes
 Server: Brisket/1.0.1
 Date: Wed,14 Dec 2011 16:11:24 GMT
</code></pre>

Range header in previous response detected - subsequent request with open-ended range to confirm support. Response returns a 206 status and <code>Content-Range</code> header to indicate the bytes present in the response body:

<pre><code>GET /BigBuckBunny_320x180.mp4
 Connection: keep-alive
 Accept-Language: en-GB,en-US,en
 Host: localhost:8080
 Range: bytes=0-
 Accept: */*
 User-Agent: Mozilla/5.0 (Windows NT 5.1) AppleWebKit/535.7 ...
 Referer: http://localhost:8080/BigBuckBunny_320x180.mp4
 Accept-Encoding: identity
 Accept-Charset: ISO-8859-1,utf-8,*
206 Partial Content
 Content-Type: video/mp4
 Connection: keep-alive
 Last-Modified: Wed,14 Dec 2011 15:50:59 GMT
 ETag: A023EF02BD589BC472A2D6774EAE3C58
 Transfer-Encoding:
 Content-Length: 64657027
 Accept-Ranges: bytes
 Server: Brisket/1.0.1
 Date: Wed,14 Dec 2011 16:11:25 GMT
 Content-Range: bytes 0-64657026/64657027
</code></pre>

Subsequent range request to capture the end of the file (probably to capture trailing metadata):

<pre><code>GET /BigBuckBunny_320x180.mp4
 Connection: keep-alive
 Accept-Language: en-GB,en-US,en
 Host: localhost:8080
 Range: bytes=64312833-64657026
 Accept: */*
 If-Range: A023EF02BD589BC472A2D6774EAE3C58
 User-Agent: Mozilla/5.0 (Windows NT 5.1) AppleWebKit/535.7 ...
 Referer: http://localhost:8080/BigBuckBunny_320x180.mp4
 Accept-Encoding: identity
 Accept-Charset: ISO-8859-1,utf-8,*
206 Partial Content
 Content-Type: video/mp4
 Connection: keep-alive
 Last-Modified: Wed,14 Dec 2011 15:50:59 GMT
 ETag: A023EF02BD589BC472A2D6774EAE3C58
 Transfer-Encoding:
 Content-Length: 344194
 Accept-Ranges: bytes
 Server: Brisket/1.0.1
 Date: Wed,14 Dec 2011 16:11:25 GMT
 Content-Range: bytes 64312833-64657026/64657027
</code></pre>

User clicks in the video progress bar beyond the downloaded range - a range request is issued to begin playing from the selected position:

<pre><code>GET /BigBuckBunny_320x180.mp4
 Connection: keep-alive
 Accept-Language: en-GB,en-US,en
 Host: localhost:8080
 Range: bytes=1073152-64313343
 Accept: */*
 If-Range: A023EF02BD589BC472A2D6774EAE3C58
 User-Agent: Mozilla/5.0 (Windows NT 5.1) AppleWebKit/535.7 ...
 Referer: http://localhost:8080/BigBuckBunny_320x180.mp4
 Accept-Encoding: identity
 Accept-Charset: ISO-8859-1,utf-8,*
206 Partial Content
 Content-Type: video/mp4
 Connection: keep-alive
 Last-Modified: Wed,14 Dec 2011 15:50:59 GMT
 ETag: A023EF02BD589BC472A2D6774EAE3C58
 Transfer-Encoding:
 Content-Length: 63240192
 Accept-Ranges: bytes
 Server: Brisket/1.0.1
 Date: Wed,14 Dec 2011 16:11:25 GMT
 Content-Range: bytes 1073152-64313343/64657027
</code></pre>

Is it possible to show me a sample http session with range requests.
I mean what would be the request and response headers?

Sample http range request session

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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可以给我看一个范围请求的http会话示例吗？我的意思是请求和响应头是什么？

示例http范围请求会话-腾讯云开发者社区-腾讯云

问示例http范围请求会话
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