监听器问题有点问题，登陆不了SQL PLUS，在cmd可以登陆，但是测试也有问题，如图所示：
http://hi.baidu.com/jarllen/album/item/db1c872a5a17eb17d52af10a.html
两个监听器配置文件如下：不知有什么问题？？？？
*********************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 =
(GLOBAL_DBNAME = Oracle8)
(ORACLE_HOME = d:\oracle\product\10.1.0\Db_1)
(SID_NAME = ORCL)
)
(SID_DESC =
(PROGRAM = extproc)
(SID_NAME = PLSExtProc)
(ORACLE_HOME = d:\oracle\product\10.1.0\Db_1)
)
)
LISTENER =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = lenovo-d2e8111f)(PORT = 1521))
(CONNECT_DATA =
(SERVICE_NAME =zhou)
)
******************* 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.
ZHOU =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = lenovo-d2e8111f)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = zhou)
)
)
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = lenovo-d2e8111f)(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)
)
)