使用mod_deflate提升网页浏览的速度

apache1.3.x可以用mod_gzip进行优化网页浏览的速度，可以明显的感觉到速度的提升。在apache2中也尝试用mod_gzip，但是配置后确发现网页不能正确显示（空白页），所以改换mod_deflate。

在Linux命令行下运行以下命令安装mod_deflate模块（斜体是apache2的目录）

/usr/local/apache2/bin/apxs -i -c /root/httpd-2.0.48/modules/filters/mod_deflate.c

编辑httpd.conf，加入以下内容：

LoadModule deflate_module modules/mod_deflate.so

DeflateFilterNote ratio

LogFormat '"%v %h %l %u %t "%r" %>s %b "%{Referer}i" "%{User-Agent}i"" (%{ratio}n)' deflate

<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 MSIE !no-gzip !gzip-only-text/html

# Don't compress images

SetEnvIfNoCase Request_URI

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



# Make sure proxies don't deliver the wrong content

# Header命令不对？注释这一行

# Header append Vary User-Agent env=!dont-vary

</Location>

#查找Customlog 注释原来的的一行，改成

CustomLog logs/deflate_log deflate

#查看logs目录下deflate_log文件，你可以看到许多这样的信息：

"www.21php.com 220.163.107.88 - - [27/Mar/2004:01:03:55 -0800] "GET /ad/usrlogo

/21PHPLOGO_88X31.gif HTTP/1.1" 200 3656 "http://soft.ttee.com/vbb/" "Mozilla

/4.0 (compatible; MSIE 5.5; Windows 98)"" (-)

"www.21php.com 211.144.88.138 - - [27/Mar/2004:01:03:57 -0800] "GET /tutorial/t

utorial.php?tid=68 HTTP/1.1" 200 5173 "http://www.21php.com/tutorial/tutorial.

php?catalogid=12" "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; MyIE2; .

NET CLR 1.0.3705; Alexa Toolbar)"" (29)

"www.21php.com 211.144.88.138 - - [27/Mar/2004:01:03:58 -0800] "GET /style.css

HTTP/1.1" 304 - "http://www.21php.com/tutorial/tutorial.php?tid=68" "Mozilla

/4.0 (compatible; MSIE 6.0; Windows NT 5.1; MyIE2; .NET CLR 1.0.3705; Alexa Tool

bar)"" (-)

"www.21php.com 211.144.88.138 - - [27/Mar/2004:01:03:58 -0800] "GET /images/bar

-4.gif HTTP/1.1" 304 - "http://www.21php.com/tutorial/tutorial.php?tid=68" "

Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; MyIE2; .NET CLR 1.0.3705; Ale

xa Toolbar)"" (-)

"www.21php.com 211.144.88.138 - - [27/Mar/2004:01:03:58 -0800] "GET /images/log

o.gif HTTP/1.1" 304 - "http://www.21php.com/tutorial/tutorial.php?tid=68" "M

ozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; MyIE2; .NET CLR 1.0.3705; Alex

a Toolbar)"" (-)

"www.21php.com 211.144.88.138 - - [27/Mar/2004:01:03:58 -0800] "GET /images/ico

n1.gif HTTP/1.1" 304 - "http://www.21php.com/tutorial/tutorial.php?tid=68" "

Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; MyIE2; .NET CLR 1.0.3705; Ale

xa Toolbar)"" (-)

Boban <boban@21php.com > 写于2004年3月27日凌晨

附注：关于mod_deflate的详细内容，可以参考http://httpd.apache.org/docs-2.0/mod/mod_deflate.html