Tomcat JSR356 Websocket - 禁用permessage-deflate压缩 [英] Tomcat JSR356 Websocket - disable permessage-deflate compression

问题描述

我正在使用一个Java servlet，它在Tomcat 8.0.18服务器上运行，并使用JSR356 websocket API与浏览器通信。
默认情况下，Tomcat使用permessage-deflate压缩在两个方向上压缩websocket消息。我想使用没有websocket压缩，怎么能关闭呢？
我试图在文件server.xml中使用compression =off选项，但没有改变任何东西。

I'm, working on a Java servlet which runs on a Tomcat 8.0.18 server and uses the JSR356 websocket API to communicate with a browser. By default Tomcat uses the "permessage-deflate" compression to compress the websocket messages in both directions. I want to use no websocket compression, how can it be turned off? I have tried to use the compression="off" option in the file server.xml but that didn't change anything. How can i turn it off?

推荐答案

请尝试添加jvm选项

-Dorg.apache.tomcat.websocket.DISABLE_BUILTIN_EXTENSIONS=true

到catalina.bat（对于windows）或catalina.sh（对于unix如OS）。

to catalina.bat (for windows) or catalina.sh (for unix like OS).

在catalina.sh开头添加此行

e.g. add this line at the beginning of catalina.sh

CATALINA_OPTS="-Dorg.apache.tomcat.websocket.DISABLE_BUILTIN_EXTENSIONS=true"

在catalina.bat开头添加此行

add this line at the beginning of catalina.bat

set CATALINA_OPTS="-Dorg.apache.tomcat.websocket.DISABLE_BUILTIN_EXTENSIONS=true"

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