plsql报错：ORA-12514: TNS: 监听程序当前无法识别连接描述符中请求的服务

[it-er]

listener.ora文件：
# listener.ora Network Configuration File: d:\oracle\product\10.1.0\db_1\network\admin\listener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = d:\oracle\product\10.1.0\db_1)
(PROGRAM = extproc)
)
)

LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.104)(PORT = 1521))
)
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
)
)
)

tnsnames.ora文件
# tnsnames.ora Network Configuration File: d:\oracle\product\10.1.0\db_1\NETWORK\ADMIN\tnsnames.ora
# Generated by Oracle configuration tools.

ORCL =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.104)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)

EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
)
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
)
)
网上都说要改这两个文件什么的，但我试过了都没用，请大家帮忙看看到底出了什么问题。还有，host主机名到底是要填什么呢？计算机全名、127.0.0.1还是我电脑的ip地址？有什么区别呀？

[304的的哥]

cmd -> ipconfig :本地连接,ip address

[liuyyuns]

重启下oracle的服务试试，如果还不行，
set oracle_sid=<sid_name>
sqlplus /nolog
connect sys/pwd as sysdba
start
看看行不行。

[秋雨飘落]

你最好把监听重新创建。。。

[xiaoyaobihai]

监听器的问题，tnsping可以通嘛？