服务器开启gzip压缩

tomcat开启gzip

现在来说一下如何在TOM猫中一步到位(要求TOM猫5.0以后版本)。

在conf/server.xml中找到第一个Connector,加入如下属性即可,就是这么简单:

compression="on"
compressionMinSize="2048"
noCompressionUserAgents="gozilla, traviata"
compressableMimeType="text/html,text/xml,text/javascript,text/css,text/plain"

第一行表示开启gzip压缩,第二行表示 compressionMinSize="2048" 大于2048才开启压缩,第三行表示需要排除的浏览器,第四行就是需要压缩的文件的mine类型了。


Apache 开启gzip
首先查看apache是否加载了mod_deflate.so模块,如果没有需要安装加载。找到并下载和当前apache版本相同的源码文件,解压缩到/home目录下,在apache安装目录下执行:

/usr/local/apache2/bin/apxs -i -c /home/httpd-2.0.63/modules/filters/mod_deflate. 

会自动在 httpd.conf添加

LoadModule deflate_module modules/mod_deflate.so 

添加如下设置:

<IfModule mod_deflate.c> 
<Location /> 
#Insert filter 
SetOutputFilter DEFLATE 
# Netscape 4.x has some problems… 
BrowserMatch ^Mozilla/4 gzip-only-text/html 
# Netscape 4.06-4.08 have some more problems 
BrowserMatch ^Mozilla/4\.0[678] no-gzip 
# MSIE masquerades as Netscape, but it is fine 
# BrowserMatch \bMSIE !no-gzip !gzip-only-text/html 
# NOTE: Due to a bug in mod_setenvif up to Apache 2.0.59 
# the above regex won’t work. You can use the following 
# workaround to get the desired effect: 
# BrowserMatch \bMSIE !no-gzip !gzip-only-text/html force-gzip 
BrowserMatch \bMSIE !no-gzip !gzip-only-text/html 

# Don’t compress images and other 
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 
AddOutputFilterByType DEFLATE text/html text/plain text/xml text/css 
AddOutputFilterByType DEFLATE application/x-javascript 
# Make sure proxies don’t deliver the wrong content 
Header append Vary User-Agent env=!dont-vary 

#DeflateFilterNote ratio ratio_info 
#LogFormat '"%v %h %l %u %t “%r" %>s %b "%{Referer}i" "%{User-Agent}i"" (%{ratio}n)' deflate 
#CustomLog logs/deflate_log deflate 
</Location>  


停止apache服务./apachectl stop,报错如下:

Cannot load /usr/local/apache2/modules/mod_deflate.so into server: /usr/local/apache2/modules/mod_deflate.so: undefined symbol: deflate 


解决如下:

vi /usr/local/apache2/bin/apr-config 
修改LDFLAGS=" " 为 LDFLAGS="-lz" 


停止启动服务:仍提示:

DeflateFilterNote not allowed here 
CustomLog not allowed here 


注释掉后,正常。

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