Change port 8080 occupied by Oracle XDB

Oracle's default xml db sets the default http port to 8080, which is a very common port. Many other webservers use this port, so we need to modify it. Three methods:
1. Dbca, select your database, and then select standard database features-> Customize-> Oracle xml db option. You should know how to change this screen.

2. OEM console, which is modified in the XML Database Configuration

3. Packages provided by Oracle:
-- Change HTTP/WebDAV port from 8080 to 8081
SQL> call dbms_xdb.cfg_update (updatexml (dbms_xdb.cfg_get (),
'/Xdbconfig/sysconfig/protocolconfig/httpconfig/HTTP-Port/text ()', 8081 ))
/

-- Change FTP port from 2100 to 2111
SQL> call dbms_xdb.cfg_update (updatexml (dbms_xdb.cfg_get (),
'/Xdbconfig/sysconfig/protocolconfig/ftpconfig/ftp-Port/text ()', 2111 ))
/

SQL> commit;

SQL> exec dbms_xdb.mongo_refresh;

-- Check whether the modification is successful
SQL> set long 100000
SQL> set pagesize 1000
SQL> select dbms_xdb.get _get from dual;

The following is my Method

SQL> -- change the HTTP/WebDAV port from 8080 to 8081
SQL>Call dbms_xdb.cfg_update (updatexml (
2Dbms_xdb.mongo_get ()
3, '/Xdbconfig/sysconfig/protocolconfig/httpconfig/HTTP-Port/text ()'
4, 8081 ))
5/

Call completed.

SQL> -- change the ftp port from 2100 to 2111
SQL>Call dbms_xdb.cfg_update (updatexml (
2Dbms_xdb.mongo_get ()
3, '/Xdbconfig/sysconfig/protocolconfig/ftpconfig/ftp-Port/text ()'
4, 2111 ))
5/

Call completed.

SQL>Commit;

Commit complete.

SQL>Exec dbms_xdb.mongo_refresh;

PL/SQL procedure successfully completed.

SQL> -- verify the change
SQL>Sets long 100000
SQL>Set pagesize 9000
SQL>Select dbms_xdb.get _get from dual;