为Apache配置mod_deflat压缩输出[已测试]

1、如果未安装Apache。编译时，加上–enable-deflate，例如：（仅针对Linux版，Windows版无须此步骤） ./configure –prefix=/usr/local/apache –enable-rewrite –enable-so –enable-deflate

2、如果已安装Apache。添加mod_deflate模块，例如：（仅针对Linux版，Windows版无须此步骤） /usr/local/apache/bin/apxs -i -a -c /home/zhangyan/software/httpd-2.0.59/modules/filters/mod_deflate.c 注：/home/zhangyan/software/httpd-2.0.59/为Apache源码路径。

3、进行以上步骤后，会在httpd.conf中自动加入一行：（Windows版请将下行最前面的#号去掉）

LoadModule deflate_module     modules/mod_deflate.so

4、 编辑httpd.conf，增加： Linux版：

DeflateCompressionLevel 9

SetOutputFilter DEFLATE

#DeflateFilterNote Input instream

#DeflateFilterNote Output outstream

#DeflateFilterNote Ratio ratio

#LogFormat ‘”%r” %{outstream}n/%{instream}n (%{ratio}n%%)’ deflate

#CustomLog logs/deflate_log.log deflate

Windows版：

DeflateCompressionLevel 9

SetOutputFilter DEFLATE

#DeflateFilterNote Input instream

#DeflateFilterNote Output outstream

#DeflateFilterNote Ratio ratio

#LogFormat ‘”%r” %{outstream}n/%{instream}n (%{ratio}n%%)’ deflate

#CustomLog logs/deflate_log.log deflate

如果将#号去掉，可以在logs/deflate_log.log日志文件中看到文件压缩前后的字节数、压缩比，例如： “GET /index.html HTTP/1.1″ 49373/276249 (17%) 压缩前的字节数为276249，压缩后的字节数为49373，压缩比为17%

5、详细配置见Apache官方网站： http://httpd.apache.org/docs/2.0/mod/mod_deflate.html

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