Enable Response compression in Tomcat 7

<Connector port="8080" protocol="HTTP/1.1"
               connectionTimeout="20000" compression="force"
               compressableMimeType="text/html,text/xml,text/plain,application/javascript,application/json,text/javascript,text/json"
               redirectPort="8443" />

<Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000" compression="force" compressableMimeType="text/html,text/xml,text/plain,application/javascript,application/json,text/javascript,text/json" redirectPort="8443" />