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Posted to issues@struts.apache.org by "Peter J Ford (JIRA)" <ji...@apache.org> on 2018/03/22 17:34:00 UTC
[jira] [Updated] (WW-4928) Setting struts.devMode from system
property not working as described
[ https://issues.apache.org/jira/browse/WW-4928?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Peter J Ford updated WW-4928:
-----------------------------
Description:
According to [http://struts.apache.org/core-developers/constant-configuration.html] the struts.devMode setting can be read from environment strings or system properties. This works correctly when setting from an environment string - for example:
{{<constant name="struts.devMode" value="${env.STRUTS_DEV_MODE:false}"/>}}
However it does not work for system properties, such as setting "-DstrutsDevMode=true" as a system property and this in struts.xml:
{{<constant name="struts.devMode" value="${strutsDevMode:false}"/>}}
Having dug through the source I found that this is to do with the way the value substitutor is configured, and that using ":-" instead of ":" as the separator string when using system properties will work:
{{<constant name="struts.devMode" value="${strutsDevMode:-false}"/>}}
was:
According to [http://struts.apache.org/core-developers/constant-configuration.html] the struts.devMode setting can be read from environment strings or system properties. This works correctly when setting from an environment string - for example:
{{<constant name="struts.devMode" value="${env.STRUTS_DEV_MODE:false}"/>}}
However it does not work for system properties, such as setting "-DstrutsDevMode=true" as a system property and this in struts.xml:
{{<constant name="struts.devMode" value="${strutsDevMode:false}"/>}}
Having dug through the source I found that this is to do with the way the value substitutor is configured, and that using ":-" instead of ":" as the separator string when using system properties will work:
{{<constant name="struts.devMode" value="$\{strutsDevMode*:-*false}"/>}}
> Setting struts.devMode from system property not working as described
> --------------------------------------------------------------------
>
> Key: WW-4928
> URL: https://issues.apache.org/jira/browse/WW-4928
> Project: Struts 2
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.5.14.1
> Environment: **Windows, Linux, Solaris
> Reporter: Peter J Ford
> Priority: Minor
> Labels: documentation, easyfix
>
> According to [http://struts.apache.org/core-developers/constant-configuration.html] the struts.devMode setting can be read from environment strings or system properties. This works correctly when setting from an environment string - for example:
> {{<constant name="struts.devMode" value="${env.STRUTS_DEV_MODE:false}"/>}}
> However it does not work for system properties, such as setting "-DstrutsDevMode=true" as a system property and this in struts.xml:
> {{<constant name="struts.devMode" value="${strutsDevMode:false}"/>}}
> Having dug through the source I found that this is to do with the way the value substitutor is configured, and that using ":-" instead of ":" as the separator string when using system properties will work:
> {{<constant name="struts.devMode" value="${strutsDevMode:-false}"/>}}
>
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