tomcat启用gzip压缩

在tomcat的server.xml找到Connector元素，增加如下属性即可：

compression="on"
compressionMinSize="2048"
noCompressionUserAgents="gozilla, traviata"
compressableMimeType="text/html,text/xml,text/javascript,text/css,text/plain"

添加完以后的完整Connector元素如下：

 port="8080" protocol="HTTP/1.1" 
                connectionTimeout="20000" 
                compression="on" 
                compressionMinSize="2048" 
                noCompressionUserAgents="gozilla, traviata" 
                compressableMimeType="text/html,text/xml,text/javascript,text/css,text/plain"
                redirectPort="8443" URIEncoding="UTF-8"/>