问题
been struggling to find a way to configure Tomcat 7.0.11 so that my web application would use project stage setting from Tomcat's config. So far - no luck. The idea is to set this property in Tomcat server/host/application wide but not to set it in web.xml. Any ideas? I am using MyFaces JSF 2 implementation 2.0.5.
回答1:
The specification says that the JSF implementation looks up the Project Stage using JNDI under java:comp/env/jsf/ProjectStage. If not found it uses the context parameter javax.faces.PROJECT_STAGE from your web.xml. This means that if defined/found on your Tomcat using JNDI, the value of preferred over the web.xml setting.
There are two things you can do:
Option 1: Overwrite the context parameter: This means that context parameter is set/overwritten using the Tomcat server.xml or context.xml. You need to put this in your <Context>-tag:
<Parameter name="javax.faces.PROJECT_STAGE" value="Production" override="false" />
Careful: override="false" here means that this parameter can NOT be overriden by the web.xml (not the other way around)!
Option 2: Configure a resource that can be found using JNDI: By using this that JSF implementation can resolve the project stage using the JNDI lookup.
<Environment name="jsf/ProjectStage" value="Production" type="java.lang.String" override="false"/>
You can also move this to the <GlobalResources>-tag in your server.xml. In this case you would need to reference this in your <Context>-tag by using <ResourceLink>-tag.
来源：https://stackoverflow.com/questions/6524901/how-to-configure-jsf-2-0-applications-project-stage-via-jndi-in-tomcat