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From "Jim Cant" <>
Subject Can I pass values to application configuration file on command line
Date Wed, 23 Jul 2008 14:51:20 GMT
Is there a way I can use replaceable parameters in an application's xml
configuration file and pass a value in on the Tomcat command line.  In
particular, I would like to set the value of docBase so that I can launch
tomcat and have it find my app in different locations without having to edit
the xml config file.

For example, in the application config file
       (say, $TOMCAT_HOME/conf/Catalina/localhost/myAppConfig.xml)
put something like

    <Context path="/theAppPath"    docBase="${APP_PATH}" ...

so that ${APP_PATH} (or whatever the correct syntax is) gets replaced when
Tomcat is started with something like

    $TOMCAT_HOME/bin/startup  ... -DAPP_PATH=/my/app/lives/here ...

and have the value for the variable replace the placeholder in the config

Thanks a lot,

Jim Cant


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