在apache中开启deflate方法的总结

1. 在httpd.conf里面的站点配置里增加如下内容：
AddOutputFilterByType DEFLATE text/html text/plain text/css text/xml text/javascript
DeflateCompressionLevel 9

SetOutputFilter DEFLATE

2. 在.htaccess，增加以下的内容：

############################################
## 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

当项目已经上线后优化apache就使用使用第二种方法，因为不用重启apache服务器。