tomcat 启用Gzip 压缩进行优化

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 单位KB

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 

我这里的配置内容为： 

 <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/json,text/html,text/xml,text/javascript,text/css,text/plain"  /> 

 addHeader("connection", "Keep-Alive");

 addHeader("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)");

 addHeader("Accept-Language", "zh-cn,zh;q=0.5");

 addHeader("Accept-Encoding", "gzip,deflate");

addHeader("Content-Type", "text/html;charset=utf-8");