zoukankan      html  css  js  c++  java
  • nginx媒体压缩

    1 gzip模块

    参考:http://nginx.org/en/docs/http/ngx_http_gzip_module.html

    浏览器的请求头里会表明Accept-Encoding 方式。服务器收到请求,就把内存按格式压缩,发给浏览器,响应头里会说明Content-Encoding和Content-Length。

    The ngx_http_gzip_module module is a filter that compresses responses using the “gzip” method. This often helps to reduce the size of transmitted data by half or even more.

    2 参数

    Syntax: 
    gzip on | off;
    Default: 
    gzip off;
    Context: 
    http, server, location, if in location
    #打开gzip
    

      

    Syntax: 
    gzip_buffers number size;
    Default: 
    gzip_buffers 32 4k|16 8k;
    Context: 
    http, server, location
    #在缓冲区的压缩块的数量和大小。内存页一般是4k,所以设定上一般是32 4k
    

      

    Syntax: 
    gzip_comp_level level;
    Default: 
    gzip_comp_level 1;
    Context: 
    http, server, location
    #设定压缩等级,1-9。推荐6,取压缩率和cpu消耗的最优值
    

      

    Syntax: 
    gzip_disable regex ...;
    Default: 
    — 
    Context: 
    http, server, location
    #不使用gzip的UA设定,一般针对MSIE
    

      

    Syntax: 
    gzip_http_version 1.0 | 1.1;
    Default: 
    gzip_http_version 1.1;
    Context: 
    http, server, location
    #使用gzip的http version。
    #现在都是1.1,这条无需要了。
    

      

    Syntax: 
    gzip_min_length length;
    Default: 
    gzip_min_length 20;
    Context: 
    http, server, location
    #启用gzip的最小传输大小。
    

      

    Syntax: 
    gzip_types mime-type ...;
    Default: 
    gzip_types text/html;
    Context: 
    http, server, location
    #启用gzip的媒体类型,text/html默认压缩,不写也行
    

      

    Syntax: 
    gzip_vary on | off;
    Default: 
    gzip_vary off;
    Context: 
    http, server, location
    #是否在相应头中显示gzip encoding
    

      

    3 一个配置

    gzip on;
    gzip_min_length  1k;
    gzip_buffers     8 32k;
    gzip_comp_level 6;
    gzip_types       text/plain application/x-javascript text/css  application/xml;
    gzip_disable     "MSIE [1-6].";
    gzip_vary on;
    #在nginx.conf的http标签下。所以对所有server和vhost生效。
    

      

  • 相关阅读:
    LC.225. Implement Stack using Queues(using two queues)
    LC.232. Implement Queue using Stacks(use two stacks)
    sort numbers with two stacks(many duplicates)
    LC.154. Find Minimum in Rotated Sorted Array II
    LC.81. Search in Rotated Sorted Array II
    LC.35.Search Insert Position
    前后端分离:(一)
    Redis基本使用(一)
    GIT篇章(二)
    GIT篇章(一)
  • 原文地址:https://www.cnblogs.com/jabbok/p/9248298.html
Copyright © 2011-2022 走看看