tomcat 配置 gzip 压缩返回的数据

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

可以有效的压缩返回的json数据大小