java - subdomain realtime mapping in apache tomcat -

i need map sub-domain (which created user, means dynamically) same login page want subdomain parameter through address bar

for exmaple

www.xyz.koopsz.com  www.abc.koopsz.com  www.mno.koopsz.com 

these urls should redirect login page paramater xyz or mno etc

• what did

i thought can map in .htaccess www.koopsz.com/abc rewrite abc.koopsz.com

after many effors know

apache tomcat doesn't support htaceess

now how can solve problem in apache tomcat read virtual hosting everytime when user add have make changes in server.xml need in runtime. please me out.

i believe looking tomcat's rewrite valve. other questions here more directly explain how set up. tomcat 8 url rewrite see: in conf/server.xml

<host name="my.domain.com" appbase="webapps/mydomainserver" unpackwars="true"            autodeploy="true"            xmlvalidation="false" xmlnamespaceaware="false">   <valve classname="org.apache.catalina.valves.rewrite.rewritevalve" />   <!-- access logging, aliases,...--> </host> 

and in conf/catalina/my.domain.com/rewrite.config

rewritecond %{request_uri} ^/(css|img|js|partials|rest|favicon).*$ rewriterule ^.*$ - [l]  rewriterule ^.*$ /index.html [l,qsa] 

you should able plug in whatever htaccess directives using rewrite.