为了降低tomcat服务的压力,把页面上的图片采用windows版的nginx进行加载,由于有些图片比较大,加载特别的慢,所以在nginx中打开了gzip的压缩功能。加载图片的速度快了很多。
通过站长工具中的"网页GZIP压缩检测"工具检测图片的压缩率达到了69.53%,如下图:
下面介绍nginx.conf文件是怎么配置的:
1、打开nginx.conf配置文件;
2、找到#gzip on这句,如下图:
3.在把#gzip on 改成下面代码:
#开启Gzip gzip on; #不压缩临界值,大于1K的才压缩,一般不用改 gzip_min_length 100k; #设置gzip申请内存的大小,其作用是按块大小的倍数申请内存空间 gzip_buffers 4 48k; #用了反向代理的话,末端通信是HTTP/1.0,有需求的应该也不用看我这科普文了;有这句的话注释了就行了,默认是HTTP/1.1 gzip_http_version 1.0; #压缩级别,1-9,数字越大压缩的越好,时间也越长,看心情随便改吧 gzip_comp_level 6; #设置需要压缩的MIME类型,非设置值不进行压缩 gzip_types text/plain application/x-javascript text/css application/xml text/javascript application/x-httpd-php image/jpeg image/gif image/png; #跟Squid等缓存服务有关,on的话会在Header里增加"Vary: Accept-Encoding" gzip_vary off; #IE6对Gzip不怎么友好,不给它Gzip了 gzip_disable "MSIE [1-6]\.";
改成后代码如下图:
4.重新加载Nginx;
<span style="white-space:pre"> </span>在linux中重启:/usr/local/nginx/sbin/nginx -s reload 在windows中重启:C:\server\nginx-1.0.2>nginx.exe -s reload
5.测试nginx压缩是否启用:
(1).页面成功压缩
<span style="white-space:pre"> </span>curl -I -H "Accept-Encoding: gzip, deflate" "http://wwww.xxxx.com/mr_smile2014" HTTP/1.1 200 OK Server: nginx/1.9.1 Date: Sun, 26 Aug 2012 18:13:09 GMT Content-Type: text/html; charset=UTF-8 Connection: keep-alive X-Powered-By: PHP/5.2.17p1 X-Pingback: http://www.slyar.com/blog/xmlrpc.php Content-Encoding: gzip
(2).css文件成功压缩
curl -I -H "Accept-Encoding: gzip, deflate" "http://wwww.xxxx.com/mr_smile2014/index.css" HTTP/1.1 200 OK Server: nginx/1.9.1 Date: Sun, 26 Aug 2012 18:21:25 GMT Content-Type: text/css Last-Modified: Sun, 26 Aug 2012 15:17:07 GMT Connection: keep-alive Expires: Mon, 27 Aug 2012 06:21:25 GMT Cache-Control: max-age=43200 Content-Encoding: gzip
(3).图片成功压缩
curl -I -H "Accept-Encoding: gzip, deflate" "http://wwww.xxxx.com/1_mr_smile2014.jpg" HTTP/1.1 200 OK Server: nginx/1.9.1 Date: Sun, 26 Aug 2012 18:22:45 GMT Content-Type: image/png Last-Modified: Thu, 23 Aug 2012 13:50:53 GMT Connection: keep-alive Expires: Tue, 25 Sep 2012 18:22:45 GMT Cache-Control: max-age=2592000 Content-Encoding: gzip
(4)js文件成功压缩
curl -I -H "Accept-Encoding: gzip, deflate" "http://wwww.xxxx.com/mr_smile2014/js/jquery/jquery.js" HTTP/1.1 200 OK Server: nginx/1.9.1 Date: Sun, 26 Aug 2012 18:21:38 GMT Content-Type: application/x-javascript Last-Modified: Thu, 12 Jul 2012 17:42:45 GMT Connection: keep-alive Expires: Mon, 27 Aug 2012 06:21:38 GMT Cache-Control: max-age=43200 Content-Encoding: gzip
时间: 2024-11-05 18:48:50