plsql ORA-12541:TNS:无监听程序

ORA-12541:TNS:无监听程序

先确定数据库已经启动了，监听启动也成功执行，控制台可以登录，但是plsqldev登不上报 ORA-12541:TNS:无监听程序

这样应该是listener.ora 文件配置错误检查修改

附linux正确的listener.ora文件配置

# listener.ora Network Configuration File: /home/oracle/oracle_11/app/product/11.2.0/dbhome_1/network/admin/listener.ora

# Generated by Oracle configuration tools.

LISTENER =

(DESCRIPTION_LIST =

(DESCRIPTION =

(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.65)(PORT = 1521))

(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))

)

)

SID_LIST_LISTENER =

(SID_LIST =

(SID_DESC =

(GLOBAL_DBNAME = orcl)

(ORACLE_HOME=/home/oracle/oracle_11/app/product/11.2.0/dbhome_1)

(SID_NAME = orcl)

)

)

ADR_BASE_LISTENER = /home/oracle/oracle_11/app

# deal with : 'WARNING: Subscription for node down event still pending'

SUBSCRIBE_FOR_NODE_DOWN_EVENT_LISTENER=OFF

注：HOST = 192.168.1.65 也可以是机器名