tomcat和apache配置gzip（HTTP压缩）功能

tomcat配置：

<Connector port="80" maxHttpHeaderSize="8192"
               maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
               enableLookups="false" redirectPort="8443" acceptCount="100"
               connectionTimeout="20000" disableUploadTimeout="true" URIEncoding="utf-8"
               compression="on"
               compressionMinSize="2048"
               noCompressionUserAgents="gozilla, traviata"
               compressableMimeType="text/html,text/xml,text/javascript,text/css,text/plain"  />

1) compression="on" 打开压缩功能
2) compressionMinSize="2048" 启用压缩的输出内容大小，这里面默认为2KB
3) noCompressionUserAgents="gozilla, traviata" 对于以下的浏览器，不启用压缩
4) compressableMimeType="text/html,text/xml"　压缩类型

ps:对于某些文本文件比如：log、txt等文件，我们也可以让服务器采用gzip压缩传输，修改conf目录下web.xml，添加    

<mime-mapping>
         <extension>log</extension>
         <mime-type>text/plain</mime-type>
</mime-mapping>

等，就可以指定压缩传输了。通常情况下，压缩传输能大幅度提高展示速度。

 

apache配置：

１）针对Apache2.0之前的版本，它原本是不支持的，不过可以通过添加第三方的module_gzip模 块来启用
２）针对Apache2.0及之后的版本，Apache提供支持, 不过不叫gzip，而叫mod_deflate
下面 就对Apache2.0及之后的版本作一个说明
1) 去掉#LoadModule headers_module modules/mod_headers.so前面的注释#,
2) 添加LoadModule deflate_module modules/mod_deflate.so
3) 在VirtualHost中添加

<Location "/">
         SetOutputFilter DEFLATE
         BrowserMatch ^Mozilla/4 gzip-only-text/html
         BrowserMatch ^Mozilla/4\.0[678] no-gzip
         BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
         SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png)$ no-gzip dont-vary
         Header append Vary User-Agent env=!dont-vary
</Location>

 完整的演示：

# 加载deflate模块
LoadModule headers_module modules/mod_headers.so
LoadModule deflate_module modules/mod_deflate.so
<VirtualHost *:80>
     DocumentRoot f:/apacheTest
    <Location "/">
         SetOutputFilter DEFLATE
         BrowserMatch ^Mozilla/4 gzip-only-text/html
         BrowserMatch ^Mozilla/4\.0[678] no-gzip
         BrowserMatch \bMSIE !no-gzip !gzip-only-text/html
         SetEnvIfNoCase Request_URI \.(?:gif|jpe?g|png)$ no-gzip dont-vary
         Header append Vary User-Agent env=!dont-vary
    </Location>
</VirtualHost>

配置日志：

<ifmodule mod_deflate.c>
DeflateCompressionLevel 6
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
CustomLog "|bin/rotatelogs.exe logs/deflate_log_%Y%m%d%H.log 720 1" deflate
</ifmodule>

 配置缓存：

/usr/local/apache111/bin/apxs -i -c /home/software/bak/httpd-2.2.3/modules/metadata/mod_expires.c 
/usr/local/apache111/bin/apxs -i -c /home/software/bak/httpd-2.2.3/modules/metadata/mod_headers.c 


vi /usr/local/apache111/bin/apr-1-config 
改 LDFLAGS="" 为 LDFLAGS="-lz" 
/usr/local/apache111/bin/apxs -i -c /home/software/bak/httpd-2.2.3/modules/filters/mod_deflate.c 


httpd.conf配置： 
LoadModule deflate_module modules/mod_deflate.so 
LoadModule headers_module modules/mod_headers.so 
LoadModule expires_module modules/mod_expires.so 

<IfModule mod_expires.c> 
    ExpiresActive On 
    ExpiresDefault A604800 
    ExpiresByType text/css M259200 
    ExpiresByType application/x-javascript M300 
    ExpiresByType image/gif "access plus 2 month" 
    ExpiresByType image/jpeg "access plus 2 month" 
    ExpiresByType image/png "access plus 2 month" 
    ExpiresByType image/x-icon "access plus 2 month" 
    ExpiresByType application/x-shockwave-flash A2592000 
</IfModule> 
<IfModule mod_deflate.c> 
    SetOutputFilter DEFLATE 

#    DeflateFilterNote Input instream 
#    DeflateFilterNote Output outstream 
#    DeflateFilterNote Ratio ratio 

    LogFormat '"%r" %{outstream}n/%{instream}n (%{ratio}n%%)' deflate 
    CustomLog logs/deflate_log deflate 

    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|mov|avi|mp3|mp4|rm)$ no-gzip dont-vary 

    AddOutputFilterByType DEFLATE text/* 
    AddOutputFilterByType DEFLATE application/ms* application/vnd* application/postscript application/javascript application/x-javascript 
    AddOutputFilterByType DEFLATE application/x-httpd-php application/x-httpd-fastphp 

    BrowserMatch ^Mozilla/4 gzip-only-text/html 
    BrowserMatch ^Mozilla/4.0[678] no-gzip 
    BrowserMatch bMSIE !no-gzip !gzip-only-text/html 
</IfModule> 

/usr/local/apache111/bin/apachectl -t 
测试httpd.conf配置文件