文件流形式的下载,有办法触发浏览器的自带下载进度功能吗 - V2EX
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1sm23

文件流形式的下载,有办法触发浏览器的自带下载进度功能吗

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  •   1sm23 Dec 24, 2021 1221 views
    This topic created in 1585 days ago, the information mentioned may be changed or developed.

    response header

    HTTP/1.1 200 OK Server: nginx/1.21.3 Date: Fri, 24 Dec 2021 06:19:29 GMT Content-Type: application/zip Transfer-Encoding: chunked Connection: keep-alive X-RateLimit-Remaining: 0 X-RateLimit-Requested-Tokens: 1 X-RateLimit-Burst-Capacity: 1 X-RateLimit-Replenish-Rate: 1 Content-Disposition: attachment; filename=%E6%8A%BD%E6%A0%B7%E7%BB%93%E6%9E%9C.zip X-Content-Type-Options: nosniff X-XSS-Protection: 1; mode=block Cache-Control: no-cache, no-store, max-age=0, must-revalidate Pragma: no-cache Expires: 0 X-Frame-Options: DENY Referrer-Policy: no-referrer Access-Control-Allow-Origin: * Access-Control-Allow-Methods: * Access-Control-Allow-Headers: DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization 

    现在是等文件传完了,chrome 底部才出文件下载完成

    如果实在做不到就只能自己监听进度写进度条了

    6 replies    2021-12-24 15:58:30 +08:00
    luman
        1
    luman  
       Dec 24, 2021
    response header 加下 Content-Length 试试
    coderluan
        2
    coderluan  
       Dec 24, 2021
    你得加个 Content-Length 或者 Content-Disposition 加个 size 吧,要不肯定不知道进度啊,哪怕你自己监听也得加吧。
    1sm23
        3
    1sm23  
    OP
       Dec 24, 2021
    @sunjiayao #1 感谢回复!加 Content-Length 试过了
    1sm23
        4
    1sm23  
    OP
       Dec 24, 2021
    @coderluan #2 同事说他试的时候是随便加的 Content-Length ,是一定要是文件的准确大小?
    luman
        5
    luman  
       Dec 24, 2021
    可以随便写 写大点 单位是字节
    coderluan
        6
    coderluan  
       Dec 24, 2021
    @1sm23 你要准确进度自然得准确大小啊,因为进度就是已接受长度除文件总长度,流文件本身又没总长度信息的
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