打开conf/server.xml文件可以看到：
<!-- Define a non-SSL HTTP/1.1 Connector on port 8080 --> <Connector port="8080" maxHttpHeaderSize="8192" maxThreads="150" minSpareThreads="25" maxSpareThreads="75" enableLookups="false" redirectPort="8443" acceptCount="100" connectionTimeout="20000" disableUploadTimeout="true" /> <!-- Note : To disable connection timeouts, set connectionTimeout value to 0 -->
<!-- Note : To use gzip compression you could set the following properties :
compression="on" compressionMinSize="2048" noCompressionUserAgents="gozilla, traviata" compressableMimeType="text/html,text/xml" -->
要使用gzip压缩功能，可以在Connector实例中加上如下属性:
1) compression="on" 打开压缩功能 2) compressionMinSize="2048" 启用压缩的输出内容大小，这里面默认为2KB 3) noCompressionUserAgents="gozilla, traviata" 对于以下的浏览器，不启用压缩&<60; 4) compressableMimeType="text/html,text/xml" 压缩类型
修改完成后
<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" />
即在Connector里面增加红色部分即可。