在apache中開啟deflate方法的總結

1.在httpd.conf裡面的站點配置裡增加如下內容：
AddOutputFilterByType DEFLATE text/html text/plain text/css text/xml text/javascript
DeflateCompressionLevel 9

SetOutputFilter DEFLATE




2. 在.htaccess，增加以下的內容：

<IfModule mod_deflate.c>

############################################
## enable apache served files compression
## http://developer.yahoo.com/performance/rules.html#gzip

# Insert filter on all content
###SetOutputFilter DEFLATE
# Insert filter on selected content types only
AddOutputFilterByType DEFLATE text/html text/plain text/xml text/css text/javascript
DeflateCompressionLevel 9
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

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

</IfModule>
<IfModule mod_deflate.c>

############################################
## enable apache served files compression
## http://developer.yahoo.com/performance/rules.html#gzip

# Insert filter on all content
###SetOutputFilter DEFLATE
# Insert filter on selected content types only
AddOutputFilterByType DEFLATE text/html text/plain text/xml text/css text/javascript
DeflateCompressionLevel 9
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

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

</IfModule>

當項目已經上線後優化apache就使用使用第二種方法，因為不用重啟apache服務器。

摘自曾健生的專欄