1.静态注册默认端口多个服务名配置，listener.orahttps://www.cndba.cn/hbhe0316/article/5014https://www.cndba.cn/hbhe0316/article/5014https://www.cndba.cn/hbhe0316/article/5014

[oracle@db01 admin]$ pwd
/u01/app/oracle/product/19.3.0/dbhome_1/network/admin
[oracle@db01 admin]$ cat listener.ora 
LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = db01)(PORT = 1521))
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )
  )
SID_LIST_LISTENER=
  (SID_LIST =
    (SID_DESC =
      (GLOBAL_DBNAME = orcl1)
      (ORACLE_HOME =/u01/app/oracle/product/19.3.0/dbhome_1)
      (SID_NAME = orcl)
    )
    (SID_DESC =
      (GLOBAL_DBNAME = orcl2)
      (ORACLE_HOME = /u01/app/oracle/product/19.3.0/dbhome_1)
      (SID_NAME = orcl)
    )
  )

上边是构建数据库自动创建监听时候的一些配置，如果采用默认，全部为动态注册，以下是追加，后边不在显示
修改完listener之后使用lsnrctl reload重新加载
如果监听比数据库启动的晚，默认一分钟之后数据库PMON进程会注册，否则可以使用alter system register手动注册

https://www.cndba.cn/hbhe0316/article/5014

重新加载监听文件即可，lsnrct reload，可以看到提供了两个服务名orcl1和orcl2https://www.cndba.cn/hbhe0316/article/5014https://www.cndba.cn/hbhe0316/article/5014

[oracle@db01 admin]$ lsnrctl reload

LSNRCTL for Linux: Version 19.0.0.0.0 - Production on 30-OCT-2021 10:17:11

Copyright (c) 1991, 2021, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=db01)(PORT=1521)))
The command completed successfully
[oracle@db01 admin]$ lsnrctl status

LSNRCTL for Linux: Version 19.0.0.0.0 - Production on 30-OCT-2021 10:17:19

Copyright (c) 1991, 2021, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=db01)(PORT=1521)))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 19.0.0.0.0 - Production
Start Date                30-OCT-2021 08:38:49
Uptime                    0 days 1 hr. 38 min. 30 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /u01/app/oracle/product/19.3.0/dbhome_1/network/admin/listener.ora
Listener Log File         /u01/app/oracle/diag/tnslsnr/db01/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=db01)(PORT=1521)))
Services Summary...
Service "orcl1" has 1 instance(s).
  Instance "orcl", status UNKNOWN, has 1 handler(s) for this service...
Service "orcl2" has 1 instance(s).
  Instance "orcl", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully

连接oraclehttps://www.cndba.cn/hbhe0316/article/5014https://www.cndba.cn/hbhe0316/article/5014

[oracle@db01 admin]$ sqlplus c##hbhe/wwwwww@192.168.56.101:1521/orcl1

SQL*Plus: Release 19.0.0.0.0 - Production on Sat Oct 30 10:18:40 2021
Version 19.13.0.0.0

Copyright (c) 1982, 2021, Oracle.  All rights reserved.

Last Successful login time: Sat Oct 30 2021 10:15:15 +08:00

Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.13.0.0.0

或者
[oracle@db01 admin]$ sqlplus c##hbhe/wwwwww@192.168.56.101:1521/orcl2

SQL*Plus: Release 19.0.0.0.0 - Production on Sat Oct 30 10:18:58 2021
Version 19.13.0.0.0

Copyright (c) 1982, 2021, Oracle.  All rights reserved.

Last Successful login time: Sat Oct 30 2021 10:18:40 +08:00

Connected to:
Oracle Database 19c Enterprise Edition Release 19.0.0.0.0 - Production
Version 19.13.0.0.0

2.非默认端口多个监听配置
修改listener.ora文件

[oracle@db01 admin]$ cat listener.ora 
LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = TCP)(HOST = db01)(PORT = 1521))
      (ADDRESS = (PROTOCOL = TCP)(HOST = db01)(PORT = 1522))
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )
  )
SID_LIST_LISTENER=
  (SID_LIST =
    (SID_DESC =
      (GLOBAL_DBNAME = orcl1)
      (ORACLE_HOME =/u01/app/oracle/product/19.3.0/dbhome_1)
      (SID_NAME = orcl)
    )
    (SID_DESC =
      (GLOBAL_DBNAME = orcl2)
      (ORACLE_HOME = /u01/app/oracle/product/19.3.0/dbhome_1)
      (SID_NAME = orcl)
    )
  )

[oracle@db01 admin]$ lsnrctl reload

[oracle@db01 admin]$ sqlplus c##hbhe/wwwwww@192.168.56.101:1521/orcl1
[oracle@db01 admin]$ sqlplus c##hbhe/wwwwww@192.168.56.101:1521/orcl2
[oracle@db01 admin]$ sqlplus c##hbhe/wwwwww@192.168.56.101:1522/orcl1
[oracle@db01 admin]$ sqlplus c##hbhe/wwwwww@192.168.56.101:1522/orcl2

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