Apache开启GZIP 压缩网页

二、Web服务器处理

通过查看HTTP头，我们可以快速判断使用的客户端浏览器是否支持接受gzip压缩。

若发送的HTTP头中出现以下信息，则表明你的浏览器支持接受相应的gzip压缩：

# mod_gzip

<span <</span><span ifModule </span><span mod_gzip.c</span><span ></span><span 

mod_gzip_on Yes

mod_gzip_dechunk Yes

mod_gzip_item_include file \.(html?|txt|css|js|php|pl)$

mod_gzip_item_include handler ^cgi-script$

mod_gzip_item_include mime ^text/.*

mod_gzip_item_include mime ^application/x-javascript.*

mod_gzip_item_exclude rspheader ^Content-Encoding:.*gzip.*

</span><span <</span><span ifModule</span><span ></span>

(1)严格匹配文件类型

# mod_deflate：

<span <</span><span ifmodule </span><span mod_deflate.c</span><span ></span><span 

DeflateCompressionLevel 6 #压缩率, 6是建议值.

AddOutputFilterByType DEFLATE text/plain

AddOutputFilterByType DEFLATE text/html

AddOutputFilterByType DEFLATE text/php

AddOutputFilterByType DEFLATE text/xml

AddOutputFilterByType DEFLATE text/css

AddOutputFilterByType DEFLATE text/javascript

AddOutputFilterByType DEFLATE application/xhtml+xml

AddOutputFilterByType DEFLATE application/xml

AddOutputFilterByType DEFLATE application/rss+xml

AddOutputFilterByType DEFLATE application/atom_xml

AddOutputFilterByType DEFLATE application/x-javascript

AddOutputFilterByType DEFLATE application/x-httpd-php

AddOutputFilterByType DEFLATE image/svg+xml

AddOutputFilterByType DEFLATE image/gif image/png  image/jpe image/swf image/jpeg image/bmp

# Don&rsquo;t compress images and other  #排除不需要压缩的文件

BrowserMatch ^Mozilla/4 gzip-only-text/html

BrowserMatch ^Mozilla/4\.0[678] no-gzip

BrowserMatch \bMSIE !no-gzip !gzip-only-text/html

SetEnvIfNoCase Request_URI .(?:html|htm)$ no-gzip dont-varySetEnvIfNoCase 

#SetEnvIfNoCase Request_URI .(?:gif|jpe?g|png)$ no-gzip dont-vary

SetEnvIfNoCase Request_URI .(?:exe|t?gz|zip|bz2|sit|rar)$ no-gzip dont-vary

SetEnvIfNoCase Request_URI .(?:pdf|doc)$ no-gzip dont-vary

</span><span </</span><span ifmodule</span><span ></span>

(2)过滤文件类型

# mod_deflate：

<span <</span><span ifmodule </span><span mod_deflate.c</span><span ></span><span 

DeflateCompressionLevel 6

SetOutputFilter DEFLATE    #压缩所有文件

#Don&rsquo;t compress images and other  #过滤不需要压缩文件

#SetEnvIfNoCase Request_URI .(?:gif|jpe?g|png)$ no-gzip dont-vary

SetEnvIfNoCase Request_URI .(?:html|htm)$ no-gzip dont-vary

SetEnvIfNoCase Request_URI .(?:exe|t?gz|zip|bz2|sit|rar)$ no-gzip dont-vary

SetEnvIfNoCase Request_URI .(?:pdf|doc)$ no-gzip dont-vary

</span><span </</span><span IfModule</span><span ></span>

 

 

五、效果

没有启动Gzip压缩：

启动Gzip压缩：