ERROR:ORA-12504:TNS:监听程序在 CONNECT-DATA 中未获得 SERVICE-NAME

ERROR:ORA-12504:TNS:监听程序在 CONNECT_DATA 中未获得 SERVICE_NAME
使用本地的SQLPlus连接服务器上的Oracle数据库,系统先提示：
ORA-12504:TNS:监听程序在 CONNECT_DATA 中未获得 SERVICE_NAME
再次输入用户名密码系统又提示：
ORA-12560:TNS:协议适配器错误.如图所示：


服务器上的Oracle数据库的配置文件内容如下：
#######  listener.ora 配置文件
SID_LIST_LISTENER =
  (SID_LIST =
    (SID_DESC =
      (SID_NAME = CLRExtProc)
      (ORACLE_HOME = C:\app\Administrator\product\11.2.0\dbhome_1)
      (PROGRAM = extproc)
      (ENVS = "EXTPROC_DLLS=ONLY:C:\app\Administrator\product\11.2.0\dbhome_1\bin\oraclr11.dll")
    )
  )

LISTENER =
  (DESCRIPTION_LIST =
    (DESCRIPTION =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
      (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.55)(PORT = 1521))
    )
  )

ADR_BASE_LISTENER = C:\app\Administrator

#### tnsnames.ora 配置文件内容
ORACLR_CONNECTION_DATA =
  (DESCRIPTION =
    (ADDRESS_LIST =
      (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
    )
    (CONNECT_DATA =
      (SID = CLRExtProc)
      (PRESENTATION = RO)
    )
  )

ORCL =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.55)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = orcl)
    )
  )

### sqlnet.ora 配置文件内容
SQLNET.AUTHENTICATION_SERVICES= (NTS)
NAMES.DIRECTORY_PATH= (TNSNAMES,EZCONNECT)