关于JBOSS的HOST配置问题

WEB-INF/jboss-web.xml

In your web application you’ll want to add an xml file named “jboss-web.xml” to your WEB-INF folder. This is the file that’s going to map both the web application’s context and host in jboss.

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

jbossweb.sar/server.xml

Now we need to edit jboss’ server.xml file, adding the virtual host mappings:

<Server>  
   <Service name="jboss.web"  
      className="org.jboss.web.tomcat.tc5.StandardService">  
  
      <!-- A HTTP/1.1 Connector on port 8080 -->  
      <Connector port="8080" address="${jboss.bind.address}"  
                 maxThreads="150" minSpareThreads="25" maxSpareThreads="75"  
                 enableLookups="false" redirectPort="8443" acceptCount="100"  
                 connectionTimeout="20000" disableUploadTimeout="true"/>  
  
      <Engine name="jboss.web" defaultHost="www.first-application.com">  
         <Realm className="org.jboss.web.tomcat.security.JBossSecurityMgrRealm"  
          certificatePrincipal="org.jboss.security.auth.certs.SubjectDNMapping"  
            />  
         <Logger className="org.jboss.web.tomcat.Log4jLogger"  
                 verbosityLevel="WARNING"  
                 category="org.jboss.web.localhost.Engine"/>  
  
            <Host name="www.first-application.com" autoDeploy="false"  
                  deployOnStartup="false" deployXML="false">  
                <Alias>dev.first-application.com</Alias>  
                <Alias>qa.first-application.com</Alias>  
                <Alias>test.first-application.com</Alias>  
                <Valve className="org.apache.catalina.valves.AccessLogValve"  
                       prefix="localhost_access_log."  
                       suffix=".log"  
                       pattern="common"  
                       directory="${jboss.server.log.dir}"  
                       resolveHosts="false" />  
            </Host>     
  
            <Host name="www.second-application.com" autoDeploy="false"  
                  deployOnStartup="false" deployXML="false">  
                <Alias>dev.second-application.com</Alias>  
                <Alias>qa.second-application.com</Alias>  
                <Alias>test.second-application.com</Alias>      
  
                <Valve className="org.apache.catalina.valves.AccessLogValve"  
                       prefix="localhost_access_log."  
                       suffix=".log"  
                       pattern="common"  
                       directory="${jboss.server.log.dir}"  
                       resolveHosts="false" />  
            </Host>  
  
      </Engine>  
   </Service>  
</Server>  

上面是官方的host配置文档。我发现host name必须为www.**.com的形式，不能没有www,要不然，JBOSS识别不了。目前就发现这个问题，不知为什么。配置Tomcat时，并没有这个闻听出现。
还有，当遇到，什么ROOT.WAR已经存在的问题，可以把web.xml中的 <context-root>/</context-root>  改成你，当前部署的war名字，就行了。