【数据库】PLSQL Developer出现ORA-12541TNS no listener错误解决方法

00. 目录

文章目录

00. 目录01. 问题描述02. 问题分析03. 问题解决04. 结果验证05. 附录

01. 问题描述

第一次装Oracle和PLSQL Developer，在打开plsql登录后出现ORA-12541:TNS:no listener的错误

02. 问题分析

listener.ora配置文件中的host与Centos的不一致导致的。

03. 问题解决

3.1 修改配置文件listener.ora

[oracle@localhost ~]$ vim /u01/app/oracle/product/11.2.0/db_1/network/admin/listener.ora # listener.ora Network Configuration File: /u01/app/oracle/product/11.2.0/db_1/network/admin/listener.ora # Generated by Oracle configuration tools. LISTENER = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521)) # 此处的HOST改为0.0.0.0 (ADDRESS = (PROTOCOL = TCP)(HOST = 0.0.0.0)(PORT = 1521)) ) ) ADR_BASE_LISTENER = /u01/app/oracle

3.2 修改配置文件tnsnames.ora

[oracle@localhost ~]$ gedit /u01/app/oracle/product/11.2.0/db_1/network/admin/tnsnames.ora # tnsnames.ora Network Configuration File: /u01/app/oracle/product/11.2.0/db_1/network/admin/tnsnames.ora # Generated by Oracle configuration tools. LISTENER_ORCL = #此处的HOST改为0.0.0.0 (ADDRESS = (PROTOCOL = TCP)(HOST = 0.0.0.0)(PORT = 1521)) ORCL = (DESCRIPTION = #此处的HOST改为0.0.0.0 (ADDRESS = (PROTOCOL = TCP)(HOST = 0.0.0.0)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = orcl) ) )

3.3 重新启动lsnrctl

[oracle@localhost ~]$ lsnrctl stop LSNRCTL for Linux: Version 11.2.0.1.0 - Production on 30-JUN-2020 20:57:01 Copyright (c) 1991, 2009, Oracle. All rights reserved. Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC1521))) The command completed successfully [oracle@localhost ~]$ [oracle@localhost ~]$ lsnrctl start

04. 结果验证

连接Ok.

05. 附录

5.1 【Tools】PLSQL Developer13.0.4注册和使用教程

参考：https://blog.csdn.net/dengjin20104042056/article/details/107029452