Change Oracle port from port 8080

Question

From Start | Run open a command window. Assuming your environmental variables are set correctly start with the following:

C:\>sqlplus /nolog
SQL*Plus: Release 10.2.0.1.0 - Production on Tue Aug 26 10:40:44 2008
Copyright (c) 1982, 2005, Oracle.  All rights reserved.

SQL> connect
Enter user-name: system
Enter password: <enter password if will not be visible>
Connected.

SQL> Exec DBMS_XDB.SETHTTPPORT(3010); [Assuming you want to have HTTP going to this port]    
PL/SQL procedure successfully completed.

SQL>quit 

then open browser and use 3010 port.

From this blog post:

XE: Changing the default http port

Oracle XE uses the embedded http listener that comes with the XML DB (XDB) to serve http requests. The default port for HTTP access is 8080.

EDIT:

Update 8080 port to which port(9090 for example) you like

SQL> -- set http port
SQL> begin
 2    dbms_xdb.sethttpport('9090');
 3  end;
 4  /

After changing the port, when we start Oracle it will go on port 8080, we should type manually new port(9090) in the address bar to run Oracle XE.

Just open Run SQL Command Line and login as sysadmin and then enter below command

Exec DBMS_XDB.SETHTTPPORT(8181);

That's it. You are done.....

Execute Exec DBMS_XDB.SETHTTPPORT(8181); as SYS/SYSTEM. Replace 8181 with the port you'd like changing to. Tested this with Oracle 10g.

Source : http://hodentekhelp.blogspot.com/2008/08/my-oracle-10g-xe-is-on-port-8080-can-i.html

I assume you're talking about the Apache server that Oracle installs. Look for the file httpd.conf.

Open this file in a text editor and look for the line
Listen 8080
or
Listen {ip address}:8080

Change the port number and either restart the web server or just reboot the machine.