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

问题描述

我正在开发一个 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.我想不使用websocket压缩，怎么关闭?我尝试在文件 server.xml 中使用 compression="off" 选项，但这并没有改变任何东西.我怎样才能关闭它?

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(适用于 Windows)或 catalina.sh(适用于类似 Unix 的操作系统).

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

例如在 catalina.sh 的开头添加这一行

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

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

在 catalina.bat 的开头添加这一行

add this line at the beginning of catalina.bat

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

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