50 Nginx的Gzip模块配置指令(一)

50 Nginx的Gzip模块配置指令(一)

50.1 未压缩文件

下面指令来自 ngx_http_gzip_module 模块，该模块在 nginx 安装时内置到 nginx 安装环境中，可以直接使用

官网模块文档介绍：https://nginx.org/en/docs/http/ngx_http_gzip_module.html

[root@nginx-100 /usr/local/nginx/conf]# ls -ltr ../html/
total 256
-rw-r--r-- 1 root root    643 Mar 15 21:05 index.html
-rw-r--r-- 1 root root    532 Mar 25 18:55 50x.html
-rw-r--r-- 1 root root     30 Mar 25 18:58 welcome.html
drwxr-xr-x 2 root root     20 May 13 11:01 images
-rw-r--r-- 1 root root 248940 May 14 16:55 jquery.js
[root@nginx-100 /usr/local/nginx/conf]# cat nginx.conf
user www;
worker_processes 2;
error_log logs/error.log;
pid logs/nginx.pid;
#daemon on; # 默认on
events {
    accept_mutex on;
    multi_accept on;
    worker_connections  1024;
    use epoll;
}

http {
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout  65;
    #gzip  on;

    server {
        listen       80;
        server_name  localhost;
        
        location / {
          root html;
          index index.html index.htm;
        }

        error_page   500 502 503 504 404 /50x.html;
        location = /50x.html {
            root   html;
        }
    }  
}
[root@nginx-100 /usr/local/nginx/conf]# nginx -t && nginx -s reload
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful

浏览器访问：http://10.0.0.100/jquery.js ，查看原文件大小 249KB

50.2 gzip

gzip：用于开启或关闭gzip功能

语法	gzip on | off;
默认值	gzip off;
位置	http 、server 、 location

 

 

 

注意：只有该指令为打开状态，下面的指令才有效果

http{
   gzip on;
}

50.3 gzip_types

gzip_types：根据响应页的MIME类型选择性地开启 gzip 压缩功能

语法	gzip_types mime-type ...;
默认值	gzip_types text/html;
位置	http 、server 、 location

 

 

 

 

根据查看的类型压缩：application/javascript

[root@nginx-100 /usr/local/nginx/conf]# cat nginx.conf
user www;
worker_processes 2;
error_log logs/error.log;
pid logs/nginx.pid;
#daemon on; # 默认on
events {
    accept_mutex on;
    multi_accept on;
    worker_connections  1024;
    use epoll;
}

http {
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
    tcp_nopush on;
    tcp_nodelay on;
    keepalive_timeout  65;
    gzip  on;
    gzip_types application/javascript;
    server {
        listen       80;
        server_name  localhost;
        
        location / {
          root html;
          index index.html index.htm;
        }

        error_page   500 502 503 504 404 /50x.html;
        location = /50x.html {
            root   html;
        }
    }  
}
[root@nginx-100 /usr/local/nginx/conf]# nginx -t && nginx -s reload
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful

浏览器访问：http://10.0.0.100/jquery.js ，查看压缩后文件大小 31.4KB

 

注意：1.gzip_types 后面压缩的类型，可以通过 mime.types 文件查看

　　    2.gzip_types *; 为压缩所有类型文件，生产不建议，有些资源已经高度压缩，再开启会浪费cpu资源

 

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