How to change Oracle XE http port

Problem

         By default, Oracle XE will set its web-based DBMS to use 8080 port, which conflicts with default port of some web servers e.g. JBoss, Tomcat. 

Solution

begin

       dbms_xdb.sethttpport('18080'); -- Change to port 18080

end; 

select dbms_xdb.gethttpport from dual; -- View the port

You need a SYSTEM (or DBA) user account to change the port.