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jboss-web.xml

This file descriptor can be bundled in a web application under the WEB-INF folder to define some specific configuration elements, related to the Web application context or to the Security configuration.

Here's an example which defines a custom context root for the Web application

<jboss-web>

    <context-root>bank</context-root>
</jboss-web>


Here's a jboss-web.xml example which uses the JaasSecurityMgr other security domain for authentication  and authorization of secured web content.defines the security a custom context root for the Web application.

<jboss-web>
    <!-- Use the JaasSecurityMgr other security domain for authentication
      and authorization of secured web content.
     -->
    <security-domain>java:/jaas/other</security-domain>
</jboss-web>


 Here's an example which uses jboss-web.xml to define a Virtual Host

Note that when a WAR file is deployed, it is associated by default with the virtual host whose name matches the defaultHost attribute of the containing Engine. 
To deploy a WAR to a specific virtual host you need to specify an appropriate virtual-host definition in your jboss-web.xml descriptor. 
The following jboss-web.xml descriptor demonstrates how to deploy a WAR to the virtual host www.myhost.com. 

<jboss-web>
 <context-root>/</context-root>
 <virtual-host>www.myhost.com</virtual-host>
</jboss-web>


The above virtual host needs to match the corresponding Host alias defined in the server.xml file

<Host name="myhost.com" autoDeploy="false" deployOnStartup="false" deployXML="false">
 <Alias>www.myhost.com</Alias>
</Host>