Tomcat 9 开启gzip压缩

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useSendfile="false" compression="on" compressionMinSize="2048"  compressor="org.apache.catalina.compress.Compressor"            compressionOptimization="true"            brotliCompression="on"            brotliCompressionLevel="4"                         compressableMimeType="text/css,text/javascript,text/plain,application/javascript,application/json"

 

在 server.xml相应的Connector中加入以上内容即可，不推荐开启图片压缩