tomcat 添加gzip压缩

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<meta http-equiv="accept-encoding" content="gzip,deflate">


在tomcat中配置gzip的方法是在conf/server.xml文件中把以前的配置修改成


<Connector  
           port="8080"       maxHttpHeaderSize="8192" 
           maxThreads="150" minSpareThreads="25" maxSpareThreads="75" 
           enableLookups="false" redirectPort="8443" acceptCount="100" 
           connectionTimeout="20000" disableUploadTimeout="true" 
  compression="on"   
           compressionMinSize="2048"   
          noCompressionUserAgents="gozilla, traviata"   
          compressableMimeType="text/html,text/xml,text/javascript,text/css,text/plain"  />   
 
compression="on" 打开压缩功能
compressionMinSize="2048" 启用压缩的输出内容大小，这里面默认为2KB
noCompressionUserAgents="gozilla, traviata" 对于以下的浏览器，不启用压缩;
compressableMimeType="text/html,text/xml" 压缩类型

在tomcat/webapps/工程/WEB-INF/web.xml中增加下面的配置

       <mime-mapping>

              <extension>conf</extension>

              <mime-type>text/plain</mime-type>

       </mime-mapping>

       <mime-mapping>

              <extension>CONF</extension>

              <mime-type>text/plain</mime-type>

       </mime-mapping>



       <mime-mapping>

              <extension>ini</extension>

              <mime-type>text/plain</mime-type>

       </mime-mapping>

       <mime-mapping>

              <extension>INI</extension>

              <mime-type>text/plain</mime-type>

       </mime-mapping>



    <mime-mapping>

        <extension>png</extension>

        <mime-type>image/png</mime-type>

    </mime-mapping>

       <mime-mapping>

        <extension>PNG</extension>

        <mime-type>image/png</mime-type>

    </mime-mapping>



       <mime-mapping>

        <extension>gif</extension>

        <mime-type>image/gif</mime-type>

    </mime-mapping>

       <mime-mapping>

        <extension>GIF</extension>

        <mime-type>image/gif</mime-type>

    </mime-mapping>



       <mime-mapping>

              <extension>json</extension>

              <mime-type>text/plain</mime-type>

       </mime-mapping>

       <mime-mapping>

              <extension>JSON</extension>

              <mime-type>text/plain</mime-type>

       </mime-mapping>



       <mime-mapping>

              <extension>xml</extension>

              <mime-type>text/xml</mime-type>

       </mime-mapping>

       <mime-mapping>

              <extension>XML</extension>

              <mime-type>text/xml</mime-type>

       </mime-mapping>

      

       <mime-mapping>

              <extension>dll</extension>

              <mime-type>application/x-msdownload</mime-type>

       </mime-mapping>

       <mime-mapping>

              <extension>DLL</extension>

              <mime-type>application/x-msdownload</mime-type>

       </mime-mapping>


配置后的头文件你会发现成这样了

1.响应头信息  

Server  Apache-Coyote/1.1  
Set-Cookie  JSESSIONID=072D9B189C4AA9DA4D4AD0B6C2C89E50; Path=/test  
Content-Type    text/html;charset=ISO-8859-1  
Transfer-Encoding   chunked  
Content-Encoding    gzip  
Vary    Accept-Encoding  
Date    Mon, 04 Jan 2010 04:49:38 GMT  
2.请求头信息  
Host    localhost:8080  
User-Agent  Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9.1.6) Gecko/20091201 Firefox/3.5.6  
Accept  text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8  
Accept-Language zh-cn,zh;q=0.5  
Accept-Encoding gzip,deflate  
Accept-Charset  GB2312,utf-8;q=0.7,*;q=0.7  
Keep-Alive  300  
Connection  keep-alive  
Cookie  JSESSIONID=1C8DB59AC74495495ED374B13C3D930A 
Cache-Control   max-age=0

没有配之前为


1.响应头信息  
Server  Apache-Coyote/1.1  
Content-Type    text/html;charset=ISO-8859-1  
Transfer-Encoding   chunked  
Date    Mon, 04 Jan 2010 04:54:00 GMT  
请求头信息  
Host    localhost:8080  
User-Agent  Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9.1.6) Gecko/20091201 Firefox/3.5.6  
Accept  text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8  
Accept-Language zh-cn,zh;q=0.5  
Accept-Encoding gzip,deflate  
Accept-Charset  GB2312,utf-8;q=0.7,*;q=0.7  
Keep-Alive  300  
Connection  keep-alive  
Cookie  JSESSIONID=072D9B189C4AA9DA4D4AD0B6C2C89E50 
Cache-Control   max-age=0