如何使 Response print 的 js 代码不需要全部载入就能运行 - V2EX
tusik
V2EX    Java

如何使 Response print 的 js 代码不需要全部载入就能运行

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  •   tusik Dec 2, 2018 2217 views
    This topic created in 2719 days ago, the information mentioned may be changed or developed.

    现在是使用一个 form 的 target 指向一个 iframe,当表单提交的时候 iframe 会请求 controller 并拿到生成的 js

    for (String host :remoteHost){ writer.print("<script>"); writer.print("parent.add("+object+"); writer.print("</script>\r\n"); writer.flush(); } 

    这是目前自己写的东西在用的代码,在本地测试的时候是能实现 print 一条 js 就能马上执行

    然而放到服务器上之后却还是需要所有的 js 代码 print 完才能一次性全部执行。

    有木有更好的解决办法

    4 replies    2018-12-03 09:19:41 +08:00
    xiangyuecn
        1
    xiangyuecn  
       Dec 2, 2018   1
    也许哪里把数据给拦截了,导致 flush 并没有实际发送给客户端,比如 ngnix 层的 gzip 就会等我们的程序所有数据发送完成后才会发送给客户端
    tusik
        2
    tusik  
    OP
       Dec 2, 2018
    @xiangyuecn 非常感谢,找到问题就在 nginx,直接用端口访问的话就不会出现这个问题,但是就算 gzip 是 off 也还是不能成功 flush
    zjp
        3
    zjp  
       Dec 2, 2018 via Android   1
    应该是反向代理的 cache 或者 buffer 的原因,nginx 有个 proxy_buffers 参数
    tusik
        4
    tusik  
    OP
       Dec 3, 2018
    @zjp 问题解决了,专门在 api 的 niginx 里写一条 proxy_buffering off 就可以了
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