JBoss AS version 6 or lower
To enable gzip compression, settings need to be added to your existing HTTP connector.
Located at /server/default/deploy/jbossweb.sar/server.xml:
<!-- A HTTP/1.1 Connector on port 8080 -->
<Connector protocol="HTTP/1.1" port="${jboss.web.http.port}"
address="${jboss.bind.address}" redirectPort="${jboss.web.https.port}"
compression="force"
compressionMinSize="512"
noCompressionUserAgents=""
compressableMimeType="text/html,text/xml,text/css,text/javascript"
/>JBoss AS 7.0.x
JBoss 7.0.x - 7.1.0 have no support for gzip compression build in.
See also issue report at: https://issues.jboss.org/browse/AS7-2991
One way to add gzip compression in JBoss 7.0 is to add is as filter.
For details: https://code.google.com/p/webutilities/wiki/CompressionFilter
JBoss AS 7.1.1
Just recently JBoss finished adding gzip compression to JBoss. As of version 7.1.1Final, gzip compression is supported out of the box again. To enable, add to the server launch params:
-Dorg.apache.coyote.http11.Http11Protocol.COMPRESSION=on