Oracle 11g ORA-12514:TNS:监听程序当前无法识别连接描述符中请求的服务

# listener.ora Network Configuration File: E:appAdministratorproduct11.1.0db_1NETWORKADMINlistener.ora
# Generated by Oracle configuration tools.

SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (GLOBAL_DBNAME = test)
      (SID_NAME = test)
    )
    (SID_DESC =
      (GLOBAL_DBNAME = NBS)
      (SID_NAME = NBS)
    )
  )

LISTENER =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = localhost)(PORT = 1521))
  )

# tnsnames.ora Network Configuration File: E:appAdministratorproduct11.1.0db_1NETWORKADMIN	nsnames.ora
# Generated by Oracle configuration tools.

test=
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = test)
    )
  )

NBS =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521))
    )
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = NBS)
    )
  )