ora12541监听程序无法识别连接

1、这类问题需要修改oracle安装路径下tnsname.ora/ listener.ora等，有时需要改成机器名。。

2、其实pl/sql在安装32位client的时候已经能连接了。

3、在修改后服务重启后，发现web等仍连接不上，这时候不用再折腾了，只需要重启机器即可。

4、只用修改listener.ora成为例子中的样子就可以了。重启服务不行，再重启机器。

Listener.ora的正确内容

# listener.ora Network Configuration File: E:appAdministratorproduct11.2.0dbhome_2 etworkadminlistener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = E:appAdministratorproduct11.2.0dbhome_2)
(PROGRAM = extproc)
(ENVS = "EXTPROC_DLLS=ONLY:E:appAdministratorproduct11.2.0dbhome_2inoraclr11.dll")
)
(SID_DESC =
(GLOBAL_DBNAME =orclyd)
(SID_NAME = orclyd)
(ORACLE_HOME = E:appAdministratorproduct11.2.0dbhome_2)
)
)

LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = WIN-FFADHU1VMKA)(PORT = 1521))
)
)

ADR_BASE_LISTENER = E:appAdministrator

tnsnames.ora的正确内容

# tnsnames.ora Network Configuration File: E:appAdministratorproduct11.2.0dbhome_2NETWORKADMIN nsnames.ora
# Generated by Oracle configuration tools.

ORACLR_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1522))
)
(CONNECT_DATA =
(SID = CLRExtProc)
(PRESENTATION = RO)
)
)

ORCLYD =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = WIN-FFADHU1VMKA)(PORT = 1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orclyd)
)
)

LISTENER_ORCLYD =
(ADDRESS = (PROTOCOL = TCP)(HOST = WIN-FFADHU1VMKA)(PORT = 1521))

另一台机器的oracle配置

listener.ora

# listener.ora Network Configuration File: F:appAdministratorproduct11.2.0dbhome_1NETWORKADMINlistener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = CLRExtProc)
(ORACLE_HOME = F:appAdministratorproduct11.2.0dbhome_1)
(PROGRAM = extproc)
(ENVS = "EXTPROC_DLLS=ONLY:F:appAdministratorproduct11.2.0dbhome_1inoraclr11.dll")
)
(SID_DESC =
(GLOBAL_DBNAME =YADANORA)
(SID_NAME = YADANORA)
(ORACLE_HOME = F:appAdministratorproduct11.2.0dbhome_1)
)
)

LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
(ADDRESS = (PROTOCOL = TCP)(HOST = WIN-V381VBUULC9)(PORT = 1521))

)
)

ADR_BASE_LISTENER = F:appAdministrator

tnsnames.ora 

# tnsnames.ora Network Configuration File: F:appAdministratorproduct11.2.0dbhome_1NETWORKADMIN nsnames.ora
# Generated by Oracle configuration tools.

YADANORA =

(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = WIN-V381VBUULC9)(PORT = 1521))
(ADDRESS = (PROTOCOL = IPC)(Key = EXTPROC1521))
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = YADANORA)
)
)